CN219022674U - Disposable constant speed intravenous injector - Google Patents

Abstract

The utility model relates to the technical field of medical appliances, in particular to a disposable constant-speed intravenous injector, which comprises a needle head, a needle tube, a piston and an automatic assembly, wherein the automatic assembly comprises a piston rod, a servo motor, a threaded rod, a hose and a push plate; the syringe needle is used for penetrating patient's health, and the needle tubing is used for depositing the liquid medicine, and the piston is used for impelling the liquid in the needle tubing, when using the device, rotates the threaded rod through servo motor, threaded rod and push pedal threaded connection, and when the threaded rod rotated, the push pedal moved along with the screw thread direction of rotation to make the piston rod slide and promote the piston, carry out the intravenous bolus, the hose is used for prolonging the distance of needle tubing and needle, can place the needle tubing aside when making the intravenous infusion, avoid long-time handheld, solved and adopted the spring to boost, because the speed after spring tension's reason begins injection and injection a period has certain change, cause the inhomogeneous problem of injection.

Description

Disposable constant speed intravenous injector

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a disposable constant-speed intravenous injector.

Background

Intravenous injection is a common technical means in medical treatment, and the current intravenous injection adopts a syringe held by a doctor to carry out injection manually, so that the intravenous injection time is longer, and the continuous holding of the syringe by the doctor for a long time is time-consuming.

The prior intravenous injector (CN 202128770U) comprises a needle head, a needle tube, a piston and a needle core, and is characterized in that a finger ring is arranged on the side surface of the upper section of the needle core, a spring is arranged at the upper end of the needle core, a support is arranged on the needle tube, a thumb support is arranged at the top end of the support, when intravenous injection is carried out on a patient, the thumb is pressed on the thumb support, a middle finger and an index finger are inserted into the finger ring to suck liquid medicine, the needle head is penetrated into an injection part, the middle finger and the index finger are loosened, and the spring is reset to push the needle core.

However, the utility model adopts the spring to assist, and the injection starts due to the tension of the spring and the speed after a period of injection changes to a certain extent, so that the injection is uneven.

Disclosure of Invention

The utility model aims to provide a disposable constant-speed intravenous injector, which aims to solve the problem that the injection is uneven because of the fact that the injection starts due to the spring tension and the speed after a period of injection changes to a certain extent when the spring is used for boosting.

In order to achieve the above purpose, the utility model provides a disposable constant-speed intravenous injector, which comprises a needle, a needle tube, a piston and an automatic assembly, wherein the piston is in sliding connection with the needle tube and is positioned at one side of the needle tube, and the automatic assembly comprises a piston rod, a servo motor, a threaded rod, a hose and a push plate;

the device comprises a piston, a piston rod, a push plate, a threaded rod, a servo motor, a hose, a needle tube, a needle head, a hose and a hose, wherein the piston rod is fixedly connected with the piston and is positioned on one side of the piston, the push plate is fixedly connected with the piston and is positioned on one side of the piston, the piston rod is fixedly connected with the piston and is positioned on one side of the piston, the push plate is fixedly connected with the piston rod and is positioned on one side of the piston, the threaded rod is in threaded connection with the push plate and is positioned on one side of the threaded rod, the output end of the servo motor is fixedly connected with the threaded rod and is positioned on one side of the threaded rod, the hose is detachably connected with the needle tube and is positioned on one side of the needle tube, and the needle head is communicated with the hose and is positioned on one side of the hose.

The automatic assembly further comprises a circular ring and a handle, wherein the circular ring is in sliding connection with the needle tube and is positioned on one side of the needle tube, and the handle is fixedly connected with the circular ring and is positioned on one side of the circular ring.

The automatic assembly further comprises a shell, wherein the shell is fixedly connected with the servo motor and is positioned on the outer side of the threaded rod.

Wherein, automatic subassembly still includes the needle cover, the needle cover set up in the outside of syringe needle.

The automatic assembly further comprises a cloth strip and a magic tape, wherein the cloth strip is fixedly connected with the hose and is positioned on one side of the hose, and the magic tape is fixedly connected with the cloth strip and is positioned on one side of the cloth strip.

According to the disposable constant-speed intravenous injector, the needle is used for penetrating the body of a patient, the needle tube is used for storing liquid medicine, the piston is used for pushing liquid in the needle tube, when the device is used, the threaded rod is rotated through the servo motor and is in threaded connection with the push plate, when the threaded rod is rotated, the push plate moves along the rotation direction of the threads, so that the piston rod slides to push the piston for intravenous injection, the hose is used for prolonging the distance between the needle tube and the needle tube, the needle tube can be placed aside during intravenous injection, long-time holding is avoided, and the problems that the injection is uneven due to the fact that the speed after the injection starts for a period of time is changed due to the fact that the boosting is carried out by the spring tension are solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a block diagram of a disposable constant velocity intravenous injector according to a first embodiment of the present utility model.

Fig. 2 is a schematic cross-sectional view of a disposable constant velocity intravenous bolus according to a first embodiment of the utility model.

Fig. 3 is a schematic structural view of a disposable constant velocity intravenous injector according to a second embodiment of the present utility model.

101-needle head, 102-needle tube, 103-piston, 104-automatic assembly, 105-piston rod, 106-servo motor, 107-threaded rod, 108-hose, 109-push plate, 110-shell, 111-needle sleeve, 201-cloth strip, 202-magic tape.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

First embodiment

Referring to fig. 1 to 2, fig. 1 is a block diagram of a disposable constant velocity intravenous injector according to a first embodiment of the present utility model. Fig. 2 is a schematic cross-sectional view of a disposable constant velocity intravenous bolus according to a first embodiment of the utility model.

The utility model provides a disposable constant-speed intravenous injector, which comprises: comprising a needle 101, a needle tube 102, a piston 103 and an automatic assembly 104, said automatic assembly 104 comprising a piston rod 105, a servo motor 106, a threaded rod 107, a hose 108, a push plate 109, a housing 110 and a needle cover 111. The problem of uneven injection caused by the fact that the boosting is carried out by the aid of the springs and the speed of the injection is changed to a certain extent after the injection is started for a period of time due to the tension of the springs is solved by the aid of the scheme, and the scheme can be used for protecting a needle 101 scene and solving the problem that personnel are stabbed by the needle 101.

In this embodiment, the piston 103 is slidably connected to the needle tube 102 and located at one side of the needle tube 102, the needle 101 is used for penetrating the body of the patient, the needle tube 102 is used for storing the liquid medicine, and the piston 103 is used for pushing the liquid in the needle tube 102.

The injection device comprises a piston 103, a piston rod 105, a push plate 109, a threaded rod 107, a hose 108, a needle tube 102, a needle tube 101 and a hose 108, wherein the piston rod 105 is fixedly connected with the piston 103 and is positioned on one side of the piston 103, the push plate 109 is fixedly connected with the piston rod 105 and is positioned on one side of the piston 105, the threaded rod 107 is in threaded connection with the push plate 109 and is positioned on one side of the threaded rod 107, the output end of the servo motor 106 is fixedly connected with the threaded rod 107 and is positioned on one side of the threaded rod 107, the hose 108 is detachably connected with the needle tube 102 and is positioned on one side of the needle tube 102, the needle tube 101 is communicated with the hose 108, and is positioned on one side of the hose 108.

Secondly, the circular ring is in sliding connection with the needle tube 102 and is positioned on one side of the needle tube 102, the handle is fixedly connected with the circular ring and is positioned on one side of the circular ring, the circular ring is sleeved on the needle tube 102, and the handle is fixed with the circular ring, so that the medical staff can conveniently hold the needle tube.

Again, the housing 110 is fixedly connected to the servo motor 106 and is located outside the threaded rod 107, and the housing 110 is used for protecting the threaded rod 107 to prevent the threaded rod 107 from being touched during use.

Finally, the needle cover 111 is disposed outside the needle 101, and the needle cover 111 is used to protect the needle 101 or prevent the needle 101 from stabbing a person.

When the disposable uniform-speed intravenous injector is used, the needle 101 is used for penetrating the body of a patient, the needle tube 102 is used for storing liquid medicine, the piston 103 is used for pushing the liquid in the needle tube 102, the threaded rod 107 is rotated by the servo motor 106 when the device is used, the threaded rod 107 is in threaded connection with the push plate 109, when the threaded rod 107 rotates, the push plate 109 moves along the rotation direction of the threads, so that the piston rod 105 slides to push the piston 103 for intravenous injection, the hose 108 is used for prolonging the distance between the needle tube 102 and the needle 101, the needle tube 102 can be placed aside during intravenous injection, long-time holding is avoided, the circular ring is sleeved on the needle tube 102, the handle is fixed with the circular ring, the holding is convenient for medical staff, the shell 110 is used for protecting the threaded rod 107, the threaded rod 107 is prevented from being touched in the use process, the needle sleeve 111 is used for protecting the needle 101 or preventing the needle 101 from stabbing a person, and the problem that the injection speed is not uniform due to the fact that the tension of the spring is adopted for boosting is started and the injection is changed after a period of time is started.

Second embodiment

Referring to fig. 3, fig. 3 is a schematic structural view of a disposable constant velocity intravenous injector according to a second embodiment of the present utility model. On the basis of the first embodiment, the disposable constant-speed intravenous injector of the utility model further comprises a cloth strip 201 and a magic tape 202.

The cloth strip 201 is fixedly connected with the hose 108 and is located at one side of the hose 108, the magic tape 202 is fixedly connected with the cloth strip 201 and is located at one side of the cloth strip 201, the cloth strip 201 is used for fixing the hose 108 on a patient's arm, and the position of the cloth strip 201 wound on the patient's arm is fixed through the magic tape 202.

The above disclosure is merely illustrative of a preferred embodiment of the disposable constant velocity intravenous injector, and it is not intended to limit the scope of the utility model, and those skilled in the art will appreciate that all or part of the procedures described in the above embodiments are implemented and equivalent changes according to the claims of the utility model still fall within the scope of the utility model.

Claims (5)

1. The disposable constant-speed intravenous injector comprises a needle head, a needle tube and a piston, wherein the piston is in sliding connection with the needle tube and is positioned at one side of the needle tube,

the automatic assembly comprises a piston rod, a servo motor, a threaded rod, a hose and a push plate;

the piston rod is fixedly connected with the piston and is positioned on one side of the piston, the push plate is fixedly connected with the piston rod and is positioned on one side of the piston rod, the threaded rod is in threaded connection with the push plate and is positioned on one side of the threaded rod, the output end of the servo motor is fixedly connected with the threaded rod and is positioned on one side of the threaded rod, the hose is detachably connected with the needle tube and is positioned on one side of the needle tube, and the needle head is communicated with the hose and is positioned on one side of the hose.

2. The single use constant velocity iv bolus of claim 1,

the automatic assembly further comprises a circular ring and a handle, wherein the circular ring is in sliding connection with the needle tube and is positioned on one side of the needle tube, and the handle is fixedly connected with the circular ring and is positioned on one side of the circular ring.

3. The single use constant velocity iv bolus of claim 2,

the automatic assembly further comprises a shell, wherein the shell is fixedly connected with the servo motor and is positioned on the outer side of the threaded rod.

4. The single use constant velocity iv pole of claim 3,

the automatic assembly further comprises a needle sleeve arranged on the outer side of the needle head.

5. The single use constant velocity iv bolus of claim 1,

the automatic assembly further comprises a cloth strip and a magic tape, wherein the cloth strip is fixedly connected with the hose and is positioned on one side of the hose, and the magic tape is fixedly connected with the cloth strip and is positioned on one side of the cloth strip.

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