CN216824355U - Extension tube of injection pump - Google Patents

Abstract

The utility model discloses an extension tube of an injection pump. The syringe pump extension tube includes: a tube body having an input end for inputting a liquid, the tube body further having an output end for outputting a liquid, and a balanced pressure joint connected at the input end of the tube body. The injection pump extension tube of this structure is provided with body and balanced pressure and connects, utilizes the characteristic of balanced pressure joint to maintain the pressure differential stability at body both ends, is favorable to reducing the blood pressure fluctuation of patient when changing dressings, improves medical safety.

Description

Extension tube of injection pump

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to syringe pump extension tube.

Background

The extension tube is suitable for being connected with an infusion device and an infusion pipeline when infusing liquid medicine, or is used for extending the infusion pipeline for injecting liquid medicine for multiple times and at intervals, laterally pressing the artery, connecting a monitoring instrument and the like.

The extension tube of a common syringe pump is usually a flexible tube with two open ends, one end connected to the patient end and the other end connected to a syringe. When continuing the pump, thereby the nurse can cause the interior negative pressure of syringe end extension tube to introduce gas into the extension tube thereby causing the liquid medicine to break usually, and patient end extension tube malleation is internal with a small amount of liquid medicine bolus to the patient. Interruption or bolus injection of vasoactive drugs in critically ill patients can affect circulation stability, resulting in sudden elevation and depression of blood pressure.

Therefore, how to provide an extension tube of an injection pump which does not affect the blood pressure of a patient is a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an injection pump extension tube uses the injection pump extension tube of this structure to be favorable to keeping the stability of patient blood pressure when changing dressings.

According to the utility model discloses syringe pump extension pipe, include: a tube body having an input end for inputting a liquid, the tube body further having an output end for outputting a liquid, and a balanced pressure joint connected on the input end of the tube body.

In some embodiments, the output end can be snapped or plugged onto the balanced crimp head.

Specifically, a sleeve is arranged on the balance crimping connector, and the output end is inserted into the sleeve.

Furthermore, the sleeve and the output end are in interference fit, and the sleeve is a plastic pipe or a rubber pipe.

In some embodiments, the sleeve is disposed coaxially with the internal cavity of the balanced crimping head, and the sleeve and the input end are located on opposite sides of the balanced crimping head.

Specifically, the surface of the balance crimping head is a friction surface.

Further, the friction surface is a grid-shaped convex grain surface.

In some embodiments, the outer diameter of the output end of the tube body is increased to form a snap ring that can be inserted into the sleeve.

Specifically, the input end is inserted into the balanced crimping head in an interference fit manner.

Further, the balanced crimp head is integrally formed on the input end of the tube body.

The utility model discloses an injection pump extension tube utilizes balanced crimping head to be favorable to keeping the stability of patient blood pressure when changing dressings, has guaranteed patient's health safety.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of an embodiment of a syringe pump extension tube;

FIG. 2 is a perspective view of another embodiment of a syringe pump extension tube.

Reference numerals:

an extension tube 1 of the injection pump,

A tube body 10, an input end 101, an output end 102, a snap ring 104,

Balance pressure joint 20, pipe sleeve 201, friction surface 202.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "diameter", "upper", "rear", "left", "right", "inner", "outer", and the like 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, and 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. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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 meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

An infusion pump extension tube 1 according to an embodiment of the present invention is described below with reference to fig. 1-2.

Referring to fig. 1, an extension pipe 1 of an injection pump according to an embodiment of the present invention includes: the balance pressure joint 20 comprises a pipe body 10 and a balance pressure joint 20, wherein the pipe body 10 is provided with an input end 101 for inputting liquid, the pipe body 10 is further provided with an output end 102 for outputting liquid, and the balance pressure joint 20 is connected to the input end 101 of the pipe body 10.

Here, the length and diameter of the tubular body 10 are not limited to this, and can be adjusted appropriately according to the condition of the patient. The syringe body is used to aspirate and store a medical fluid. Optionally, the length of the tubular body 10 is 0.5 meters.

In use, one end of the tube 1 with the balanced crimp 20 is connected to a syringe or a micro-syringe pump for administering a medical fluid to the tube 10, and the output end 102 of the tube 10 may be connected to a syringe needle for insertion into the skin of a patient, for example, into a blood vessel for administering a medical fluid to a patient. The balanced crimping head 20 now functions as a conventional joint. When the patient needs to replace the liquid medicine, the joint of the syringe and the balanced pressure joint 20 is disconnected, another syringe is replaced, and a new syringe and the balanced pressure joint 20 are connected. When a syringe is pulled out from the balance pressing joint 20 when dressing change is needed, the balance pressing joint 20 can instantly isolate the inner cavity of the tube body 10 from the external air, so that the internal pressure of the tube body 10 is not changed at the moment of pulling out the syringe, the medicine liquid can not be instantly pushed into the human body, and the stability of the blood pressure in the patient can be maintained. It should be noted that the structures of the injector and the balance crimping head 20 are the prior art, and the structures of the injector and the balance crimping head disclosed in the prior art are adopted herein, and therefore, the detailed description is omitted.

According to the utility model discloses an injection pump extension pipe 1 sets up body 10 and balanced pressure joint 20, and the pressure differential that utilizes balanced pressure joint 20's characteristic to maintain body 10 both ends is stable, has solved the change of body 10 internal and external pressure when carrying out the injection and change, prevents that patient's blood pressure is undulant, improves medical safety.

In some embodiments, as shown in FIG. 2, the output end 102 of the tubular body 10 can be snapped or otherwise attached to the balanced crimp fitting 20. It will be appreciated that the balanced crimping head 20 is itself attached to the input end 101 of the body 10. When the syringe pump extension tube 1 is packaged or stored, the output end 102 of the tube body 10 can be clamped or connected to the balance pressing joint 20 in an inserting mode, the syringe pump extension tube 1 is annular, the probability of entanglement of the syringe pump extension tube 1 is reduced, and the problem that the syringe pump extension tube 1 is difficult to store is solved. When the syringe extension 1 is in use, the output end 102 of the body 10 can be pulled away from the balanced crimping head 20.

Specifically, as shown in fig. 1, the balance crimping head 20 is provided with a sleeve 201, and the output end 102 of the pipe body 10 is inserted into the sleeve 201. In other embodiments, the balance pressure joint 20 is provided with a snap ring or a hook, and the output end 102 of the tube 10 can be snapped on the snap ring or the hook.

Further, as shown in fig. 1, an interference fit is provided between the sleeve 201 and the output end 102, and the sleeve 201 is a plastic tube or a rubber tube.

Specifically, the interference fit is to expand and deform the sleeve 201 by using elasticity of the material to be sleeved on the output end 102 of the tube 10, and when the sleeve 201 is restored, a tightening force is generated on the output end 102 of the tube 10, so that the sleeve is connected with the output end 102 of the tube 10. The sleeve 201 may be selected from plastic and rubber tubes, which have a certain bending ability and are convenient to use.

In some embodiments, other materials with elasticity can be selected for the sleeve 201, and the type of the material is not limited.

In some embodiments, as shown in fig. 1-2, the sleeve 201 is disposed coaxially with the interior cavity of the balanced crimping head 20, and the sleeve 201 and the input end 101 are located on opposite sides of the balanced crimping head 20.

Specifically, one section of the balance crimping connector 20 is provided with a sleeve 201, the other end of the sleeve 201 is connected with the input end 101 of the tube body 10, and the sleeve 201 and the balance crimping connector 20 are coaxially arranged, so that when the syringe is inserted into the balance crimping connector 20, the sleeve 201 can also be input and positioned, and the probability of inserting skew is reduced.

Specifically, as shown in fig. 1-2, the surface of the balanced crimping head 20 is a friction surface 202.

Specifically, the surface of the balance crimping head 20 is provided with the friction surface 202, so that when the medical staff holds the balance crimping head 20, the friction surface 202 reduces the probability of slipping and reduces the risk of falling.

Further, as shown in fig. 1-2, the friction surface 202 is a grid-like textured surface. Thereby facilitating processing.

In some embodiments, the friction face 202 is also provided as a convex texture in the shape of a "herringbone". The herringbone texture can provide larger friction force to prevent falling off.

In some embodiments, as shown in fig. 1, the outer diameter of the output end 102 of the tubular body 10 is increased to form a snap ring 104, the snap ring 104 being insertable into the sleeve 201. This can increase the contact area between the two, and improve the stability of clamping the output end 102 of the tube body 10 to the sleeve 201.

Specifically, as shown in fig. 2, the input end 101 is inserted into the balanced crimping connector 20 by interference fit, so that the stability of clamping the output end 102 of the pipe body 10 into the sleeve 201 can be further improved.

Optionally, balance crimp 20 is connected to the syringe via a syringe screw cap. When the syringe is separated from the screw cap of the syringe, the syringe is used for connecting the needle to suck the liquid medicine through the needle.

Further, the balance crimping head 20 is integrally formed on the input end 101 of the pipe body 10.

Specifically, balanced crimping head 20 and body 10 can integrated into one piece's connection, and the structure of body coupling is convenient for produce, has removed the process when later stage equipment from, has improved production efficiency. And the balance pressure joint 20 and the pipe body 10 are disposable, so that medical accidents are reduced.

In the description of the present specification, references to the description of the terms "embodiment," "example," etc., 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A syringe pump extension tube, comprising: a tube body having an input end for inputting a liquid, the tube body further having an output end for outputting a liquid, and a balanced pressure joint connected on the input end of the tube body.

2. The syringe pump extension tube of claim 1, wherein the output end can be snapped or plugged onto the balanced crimp fitting.

3. The syringe pump extension tube of claim 2, wherein the balanced crimp fitting is provided with a sleeve, the output end being inserted within the sleeve.

4. The syringe pump extension tube of claim 3, wherein the sleeve is an interference fit with the output end, and wherein the sleeve is a plastic tube or a rubber tube.

5. The syringe pump extension tube of claim 3, wherein the sleeve is disposed coaxially with an inner cavity of the balance crimp head, the sleeve and the input end being on opposite sides of the balance crimp head.

6. The syringe pump extension tube of claim 1, wherein the surface of the balanced crimp joint is a friction surface.

7. The syringe pump extension tube of claim 6, wherein the friction surface is a grid-like textured surface.

8. The syringe pump extension tube of claim 3, wherein the output end of the tube body has an increased outer diameter to form a snap ring that is insertable into the cannula.

9. The syringe pump extension tube of any of claims 1-8, wherein the input end is inserted onto the balanced crimp fitting by an interference fit.

10. The syringe pump extension tube of any of claims 1-8, wherein the balanced crimp joint is integrally formed on the input end of the tube body.

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