CN106362237B

CN106362237B - Syringe clamping device for syringe pump

Info

Publication number: CN106362237B
Application number: CN201610812230.7A
Authority: CN
Inventors: 孙建; 寇唐奎; 于鑫淼
Original assignee: Suzhou Medsure Medical Technology Co ltd
Current assignee: Suzhou Medsure Medical Technology Co ltd
Priority date: 2016-09-09
Filing date: 2016-09-09
Publication date: 2022-07-29
Anticipated expiration: 2036-09-09
Also published as: CN106362237A

Abstract

The invention discloses a syringe clamping device for a syringe pump, which comprises a shell. The novel injector clamping device is characterized in that a rotating transmission structure is arranged in the shell, one end of the rotating transmission structure is connected with the pressing plate, the other end of the rotating transmission structure is connected with the potentiometer device, the pressing plate is matched with a groove formed in the shell through rotation to clamp the injector, the rotating angle of the pressing plate can be transmitted to the potentiometer device through the rotating transmission structure, and the potentiometer device converts the rotating angle of the pressing plate into the diameter of the injector through setting. The invention provides a syringe clamping device for a syringe pump, which converts the outer diameter of a syringe clamped by the syringe clamping device through the rotation angle of a pressing plate, so that the size specification of the syringe can be accurately and conveniently identified.

Description

Syringe clamping device for syringe pump

Technical Field

The invention relates to the field of medical instruments, in particular to a syringe clamping device for a syringe pump.

Background

With the development of society and the progress of science and technology, the living standard of people is continuously improved. Along with the improvement of living standard of people, the attention of people to health is gradually increased, so that the medical conditions are continuously improved, and the development of medical appliances is promoted.

For example, the infusion of drugs by a micro-syringe pump has been widely used in various fields of medical practice as a common clinical treatment means.

The use of the injection pump needs to be combined with the injector, and the injectors with different specifications need to be adopted under different use conditions. Typically, the syringe is secured to the syringe gripping device during use. The injector clamping mechanism for the injection pump is mainly used for judging the specification of the injector and ensuring that the injector is clamped in the infusion process.

The existing common syringe clamping mechanism identifies the specification of the syringe by the combination of starting and closing of different tact switches. However, due to the fact that the outer diameters of the syringes of different brands are overlapped, the situation that the syringes are identified incorrectly can occur, and the normal operation of infusion is adversely affected.

Accordingly, there is a need for a new syringe clamping device for a syringe pump that overcomes the deficiencies of the prior art.

Disclosure of Invention

The invention aims to provide a novel syringe clamping device for a syringe pump, which can accurately and conveniently identify the size specification of a syringe accommodated in the syringe clamping device.

In order to achieve the purpose, the invention adopts the following technical scheme:

The utility model provides a syringe clamping device for syringe pump, its includes the casing, be provided with rotation transmission structure in the casing, rotation transmission structure one end is connected with the clamp plate, and the other end is connected with the potentiometre device, the clamp plate through rotate with the recess cooperation that the casing set up, come the centre gripping syringe, and the turned angle of clamp plate can pass through rotation transmission structure transmits for the potentiometre device, the potentiometre device will according to setting for the turned angle of clamp plate turns into the centre gripping the diameter of syringe.

Further, in different embodiments, the rotation transmission structure includes a shafting structure and a rod system structure that are connected in a matching manner, one end of the shafting structure is connected to the pressing plate, and the other end of the shafting structure is connected to the potentiometer, and the rod system structure can apply a certain torque to the shafting structure.

Further, in a different embodiment, the shaft system structure includes a connecting shaft and a coupling sleeve, wherein the connecting shaft is connected to the pressing plate, and the coupling sleeve is connected to a rotating shaft of a potentiometer in the potentiometer device.

Further, in various embodiments, the potentiometer device includes a circuit board connected to the potentiometer.

Further, in various embodiments, the connecting shaft comprises a matching short shaft and a matching long shaft, wherein the short shaft is connected with the pressing plate, and the long shaft is connected with the coupling sleeve.

Further, in various embodiments, the bar system structure comprises a short sleeve, a long bar and a short pin, the short sleeve is connected to the connecting shaft in a matching mode, the long bar and the short sleeve are connected together through the short pin, and the long bar can rotate around the short pin freely.

Further, in various embodiments, wherein the long rod is provided with an elastic member therein, the long pin penetrates through the long rod to press the elastic member.

Further, in various embodiments, wherein the resilient member comprises a spring.

Further, in various embodiments, the long pin is fixedly mounted on a fixing frame, and the fixing frame is mounted on the housing.

Further, in different embodiments, the fixing frame is provided with a limiting rib for limiting the short sleeve.

Compared with the prior art, the syringe clamping device for the syringe pump has the advantages that the outer diameter of the clamped syringe is converted through the rotating angle of the pressing plate, so that the size specification of the syringe in the syringe can be accurately and conveniently identified.

In addition, a spring applies force to enable a rod system structure consisting of the short sleeve, the long rod and the short pin to be self-locked after the pressing plate is rotated and opened to a specified position, so that medical personnel can conveniently perform other operations; meanwhile, after the injector is placed at a designated position, the pressing plate is slightly shifted, and the rod system structure crossing the dead point can automatically reset under the acting force of the spring to firmly clamp the injector, so that the operation is convenient and reliable.

Drawings

FIG. 1 is a schematic diagram of a syringe clamping device for a syringe pump according to an embodiment of the present invention;

FIG. 2 is an exploded view of the syringe clamping device for the syringe pump of FIG. 1;

FIG. 3 is a cross-sectional view of the syringe clamping device for the syringe pump shown in FIG. 1;

fig. 4 is a schematic view of a syringe clamping device for the syringe pump shown in fig. 3, clamping a syringe.

The reference numerals in the attached figures 1 to 4 illustrate:

short shaft 1 pressing plate 2

Short sleeve 3 long shaft 4

Connecting sleeve 5 potentiometer 6

Circuit board 7 fixing frame 8

Spacing rib 81 spring 9

Long pin 10 long rod 11

Short pin 12 casing 13

Recess 14 syringe 20

Detailed Description

The present invention relates to a syringe clamping device for a syringe pump, and more particularly, to a syringe clamping device for a syringe pump, which is provided with a clamping device for clamping a syringe pump.

Referring to fig. 1 and 2, one embodiment of the present invention provides a syringe clamping device for a syringe pump, which includes a short shaft 1, a pressing plate 2, a short sleeve 3, a long shaft 4, a coupling sleeve 5, a potentiometer 6, a circuit board 7, a fixing frame 8, a spring 9, a long pin 10, a long rod 11, a short pin 12, and a housing 13. The long rod 11, the short sleeve 3 and the short pin 12 form a rod system structure, and the short shaft 1, the long shaft 4, the connecting sleeve 5 and the rotary shaft of the potentiometer 6 form a shaft system structure.

Furthermore, 6 parts such as the short shaft 1, the pressing plate 2, the short sleeve 3, the long shaft 4, the connecting sleeve 5 and the potentiometer 6 are coaxially mounted on a shell 13, the circuit board 7 is fixed on the potentiometer 6, the long rod 11 and the short sleeve 3 are assembled together through the short pin 12, the long rod 11 can freely rotate around the short pin 12, the fixing frame 8 is fixed on the shell 13, the spring 9 is mounted in a round hole of the long rod 11, meanwhile, the long pin 10 penetrates through the long rod 11 to press the spring 9 in the round hole, and the long pin 10 is fixedly mounted on the fixing frame 8. At this time, the long rod 11 keeps the short sleeve 3 at the initial position under the thrust of the spring 9, and the whole coaxially-mounted shafting structure is kept at the initial position through the short sleeve 3.

Referring to fig. 3, when the injector is used, the pressing plate 2 is rotated to open, the pressing plate 2 drives the short shaft 1 and the long shaft 4 to rotate synchronously, the long shaft 4 drives the short sleeve 3 to rotate around the shaft center, the long rod 11 connected with the short sleeve 3 through the short pin 12 rotates around the long pin 10 fixed on the fixing frame 8, at this time, the spring 9 installed in the long rod 11 hole is further compressed, after the long rod 11 rotates through a dead point with the short sleeve 3, the short sleeve 3 is limited by the limiting rib 81 on the fixing frame 8, at this time, under the effect that the spring 9 presses the long rod 11, the whole shafting structure is in a self-locking state, and at this time, the injector can be conveniently placed in the groove on the other side of the shell 13.

Referring to fig. 4, after the injector 20 is placed, the pressing plate 2 is pulled, and after the short sleeve 3 passes through the dead point of the rod system structure formed by the long rod 11, under the pressing force of the spring 9, the long rod 11 applies a certain torque to the short sleeve 3, so that the long shaft 4, the short shaft 1, the coupling sleeve 5 and the rotating shaft of the potentiometer 6 are kept at fixed positions. At this time, since the moment arm of the point of action of the pressing plate 2 and the syringe 20 is longer than that of the short sleeve 3, the pressing force of the spring 9 is amplified to act on the syringe 20, and the syringe 20 is ensured to be firmly fixed in the syringe groove 14 of the shell 13.

According to the invention, through proper design, the locking position of the short sleeve 3 can be ensured to cross the dead point of a rod system structure formed by the long rod 11 even for the injector 20 with the largest size, and meanwhile, the limit rib 81 of the fixing frame 8 is designed to ensure that the self-locking position of the rod system formed by the short sleeve 3, the long rod 11 and the short pin 12 only slightly crosses the dead point, so that the function of firmly clamping the injector 20 by automatically resetting the pressing plate 2 under the action of the spring 9 can be realized by slightly shifting the pressing plate 2 to ensure that the short sleeve 3 crosses the dead point. The force arm of the short sleeve 3 is smaller than the acting force arm of the pressing plate 2, so that the pressing force of the spring 9 is amplified, and the volume and the weight of the spring can be reduced. The diameter of the injector and the rotating angles of the short shaft 1, the long shaft 4, the connecting sleeve 5 and the potentiometer 6 have a certain conversion relation through design, and the resistance value change of the potentiometer 6 is fed back to an external system through the circuit board 7, so that the size specification of the injector can be accurately and conveniently identified.

It should be noted that the above-mentioned preferred embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A syringe clamping device for a syringe pump; the device is characterized by comprising a shell, wherein a rotary transmission structure is arranged in the shell, one end of the rotary transmission structure is connected with a pressure plate, the other end of the rotary transmission structure is connected with a potentiometer device, the pressure plate is matched with a groove arranged in the shell through rotation to clamp an injector, the rotation angle of the pressure plate can be transmitted to the potentiometer device through the rotary transmission structure, and the potentiometer device converts the rotation angle of the pressure plate into the diameter of the clamped injector according to setting; the rotation transmission structure comprises a rod system structure; the rod system structure comprises a short sleeve, a long rod and a short pin, the short sleeve is connected to a connecting shaft in a matching mode, the long rod and the short sleeve are assembled together through the short pin, and the long rod can rotate freely around the short pin; an elastic piece is arranged in the long rod; the fixing frame is provided with a limiting rib for limiting the short sleeve; when the long rod and the short sleeve form a dead point, the limiting rib is abutted against the short sleeve and limits the short sleeve.

2. A syringe clamping device for a syringe pump according to claim 1; the device is characterized in that the rotation transmission structure comprises a shafting structure and a shafting structure which are matched and connected, one end of the shafting structure is connected with the pressing plate, the other end of the shafting structure is connected with the potentiometer device, and the shafting structure can apply certain torque to the shafting structure.

3. A syringe clamping device for a syringe pump according to claim 2; the shafting structure is characterized by comprising a connecting shaft and a connecting sleeve which are matched and connected, wherein the connecting shaft is connected with the pressing plate, and the connecting sleeve is connected with a rotating shaft of a potentiometer in the potentiometer device.

4. A syringe clamping device connecting shaft for a syringe pump according to claim 3; the potentiometer device is characterized by comprising a circuit board which is connected with the potentiometer.

5. A syringe clamping device for a syringe pump according to claim 3; the connecting shaft comprises a short shaft and a long shaft which are matched and connected, wherein the short shaft is connected with the pressure plate, and the long shaft is connected with the coupling sleeve.

6. A syringe clamping device for a syringe pump according to claim 1; the elastic piece is characterized in that a long pin penetrates through the long rod to press the elastic piece.

7. A syringe clamping device for a syringe pump according to claim 6; the long pin is fixedly arranged on a fixing frame, and the fixing frame is arranged on the shell.