CN219896627U - Remaining needle and remaining needle waterproof protective sleeve - Google Patents

Abstract

The utility model relates to an indwelling needle and a indwelling needle waterproof protective sleeve, and belongs to the technical field of medical equipment. The indwelling needle includes: comprises a needle tube of an indwelling needle, a catheter seat, an anti-blocking tube, a pushing tube and a fixing bracket; the retaining needle tube is communicated with one end of the catheter seat, the anti-blocking tube is positioned in the catheter seat, one end of the anti-blocking tube, which is far away from the retaining needle tube, is connected with the push tube, and the push tube is used for pushing the anti-blocking tube to extend into the retaining needle tube; when the retaining needle is not in transfusion, the anti-blocking pipe stretches into the needle tube of the retaining needle, so that the blood of a patient can be prevented from flowing backwards into the retaining needle, the blocking of the retaining needle is avoided, the fixing adhesive film is further arranged on the fixing support, and the fixing adhesive film can be directly adhered to the skin of a human body in actual application, so that the effect of fixing the retaining needle is achieved.

Description

Remaining needle and remaining needle waterproof protective sleeve

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an indwelling needle and a waterproof protective sleeve of the indwelling needle.

Background

The indwelling needle is a common medical instrument in nursing work, has the advantages of convenient use and reduced puncture times for patients, thereby reducing repeated puncture during clinical transfusion, reducing puncture pain for patients and workload of clinical nursing staff, and being widely applied in the clinic at present.

In the existing indwelling needle, generally include: puncture needle, indwelling needle and infusion catheter. When in use, firstly, a user inserts the puncture needle communicated with the indwelling needle into the injection position of a patient, then guides the indwelling needle into the blood vessel of the patient through the puncture needle, finally extracts the puncture needle, so that the indwelling needle is left in the blood vessel of the patient, and the indwelling needle is fixed by the application film.

The current indwelling needle has the following general problems: on the one hand, when the indwelling needle is not used for transfusion, blood of a patient easily flows back into the indwelling needle, so that the indwelling needle is easily blocked. In addition, blood remaining in the indwelling needle is likely to coagulate, and the coagulated blood is likely to enter a blood vessel to form thrombus during the next infusion, which is harmful to the health of the human body. On the other hand, when the retaining needle is fixed, the special adhesive film is required to be taken out, so that the convenience is brought; meanwhile, when the infusion tube is subjected to external force, the external-covered-adhesive fixing mode is very easy to tear off at the infusion catheter part in the process of gathering the adhesive film stress part, so that the indwelling needle is pulled out.

The utility model provides an anti-blocking indwelling needle which is also provided with a fixing bracket and does not need to be fixed in an external coating mode.

Disclosure of Invention

In order to overcome the problems in the related art, one of the purposes of the utility model is to provide an indwelling needle which can prevent blocking, so that an anti-blocking pipe stretches into a needle tube of the indwelling needle when the indwelling needle is not used for transfusion, and the blood of a patient can be prevented from flowing back into the indwelling needle, thereby avoiding blocking the indwelling needle.

An indwelling needle comprising: an indwelling needle tube, a catheter seat, an anti-blocking tube, a pushing tube and a fixing bracket;

the remaining needle tube is communicated with one end of the catheter seat,

the anti-blocking pipe is positioned in the catheter seat, one end of the anti-blocking pipe, which is far away from the needle tube of the indwelling needle, is connected with the push pipe, and the push pipe is used for pushing the anti-blocking pipe to extend into the needle tube of the indwelling needle;

the fixed support is used for supporting the catheter seat, and a fixed adhesive film is adhered to the fixed support and used for supporting the catheter seat

The indwelling needle is adhesively fixed at the application site.

In the preferred technical scheme of the utility model, one end of the catheter seat, which is far away from the needle tube of the indwelling needle, is provided with a catheter cap, and the catheter cap can be screwed and sealed with the catheter seat.

In the preferred technical scheme of the utility model, the outer diameter of the anti-blocking pipe corresponds to the diameter of the needle tube of the retaining needle.

In the preferred technical scheme of the utility model, the catheter seat is provided with a branch pipe, and the branch pipe is connected with the infusion extension pipe.

In the preferred technical scheme of the utility model, the end part of the infusion extension tube is provided with a positive pressure joint.

In the preferred technical scheme of the utility model, the indwelling needle further comprises a heparin cap, and the heparin cap is sleeved outside the positive pressure connector.

One of the purposes of the present utility model is to provide a waterproof protective sleeve for an indwelling needle, which is used for protecting the indwelling needle, and comprises a waterproof protective sleeve main body, a tightening ring, a snap fastener sticking strip and absorbent cotton for absorbing water;

the protective sleeve body is a cylinder with two open ends;

the tightening rings are connected to two ends of the waterproof protective sleeve;

the primary and secondary buckle adhesive strips are arranged on the outer wall of the tightening ring, and the tightening ring is tightly tightened through the primary and secondary buckle adhesive strips;

the absorbent cotton is arranged on the inner wall of the tightening ring and automatically absorbs water.

In the preferred technical scheme of the utility model, the waterproof protective sleeve main body and the tightening ring are both made of waterproof materials.

In the preferred technical scheme of the utility model, the waterproof protective sleeve main body is prepared from a transparent waterproof material.

In a preferred technical scheme of the utility model, the absorbent cotton is detachably arranged on the inner wall of the tightening ring.

The technical scheme provided by the utility model has the beneficial effects that: the retaining needle comprises a retaining needle tube, a catheter seat, an anti-blocking tube, a pushing tube and a fixing bracket; the retaining needle tube is communicated with one end of the catheter seat, the anti-blocking tube is positioned in the catheter seat, one end of the anti-blocking tube, which is far away from the retaining needle tube, is connected with the push tube, and the push tube is used for pushing the anti-blocking tube to extend into the retaining needle tube; the anti-blocking pipe can extend into the needle tube of the indwelling needle when the indwelling needle is not in transfusion, and can prevent blood of a patient from flowing backwards into the indwelling needle, so that the indwelling needle is prevented from being blocked. The fixed support supports the catheter seat, and a fixed adhesive film is adhered to the fixed support for adhering and fixing at an application position. The catheter seat can be fixed on the fixed bracket by the fixed bracket, so that the effect of stably retaining the needle is achieved. Furthermore, the fixing bracket of the embodiment of the utility model is also provided with the fixing adhesive film, and the fixing adhesive film can be directly adhered to the skin of a human body to play a role in fixing the indwelling needle when in actual application.

Drawings

FIG. 1 is a schematic view showing the structure of an indwelling needle according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another construction of an indwelling needle according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing the structure of an indwelling needle according to an embodiment of the present utility model including an infusion extension tube;

FIG. 4 is a schematic view of a waterproof protective sleeve for an indwelling needle according to an embodiment of the present utility model;

fig. 5 is a schematic view of another construction of the waterproof protective sleeve for an indwelling needle according to an embodiment of the present utility model.

Reference numerals:

1. a needle tube of the retaining needle; 2. a catheter holder; 21. a catheter cap; 22. a branch pipe; 3. an anti-blocking pipe; 4. pushing the tube; 5. a fixed bracket; 51. fixing the adhesive film; 6. an infusion extension tube; 7. a positive pressure joint; 8. a heparin cap; 9. a waterproof protective sleeve body; 10. a tightening ring; 11. a primary and secondary buckle sticking strip; 12. absorbent cotton.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

The general following problems of the existing indwelling needle: on the one hand, when the indwelling needle is not used for transfusion, blood of a patient easily flows back into the indwelling needle, so that the indwelling needle is easily blocked. In addition, blood remaining in the indwelling needle is likely to coagulate, and the coagulated blood is likely to enter a blood vessel to form thrombus during the next infusion, which is harmful to the health of the human body. On the other hand, when the retaining needle is fixed, the special adhesive film is required to be taken out, so that the convenience is brought; meanwhile, when the infusion tube is subjected to external force, the external-covered-adhesive fixing mode is very easy to tear off at the infusion catheter part in the process of gathering the adhesive film stress part, so that the indwelling needle is pulled out.

The embodiment of the utility model provides an anti-blocking indwelling needle aiming at the technical problems, which is also provided with a fixing bracket and does not need to be fixed in an external coating mode.

FIG. 1 is a schematic view showing the structure of an indwelling needle according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another construction of an indwelling needle according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing the structure of an indwelling needle according to an embodiment of the present utility model including an infusion extension tube;

see fig. 1-3.

The indwelling needle of the embodiment of the utility model comprises an indwelling needle tube 1, a catheter seat 2, an anti-blocking tube 3, a push tube 4 and a fixed bracket 5;

when the indwelling needle tube 1 according to the embodiment of the present utility model is used, firstly, a user inserts the puncture needle in communication with the indwelling needle tube 1 into an injection site of a patient, then, guides the indwelling needle tube 1 into a blood vessel of the patient through a puncture needle guide, and finally, withdraws the puncture needle to leave the indwelling needle tube 1 in the blood vessel of the patient.

The indwelling needle cannula 1 of the embodiment of the present utility model is thus connected to one end of the catheter seat 2,

the catheter seat 2 of the embodiment of the utility model is used for communicating the indwelling needle tube 1 and the infusion extension tube 6.

The anti-blocking pipe 3 is positioned in the catheter seat 2, and one end of the anti-blocking pipe 3, which is far away from the needle tube 1 of the indwelling needle, is connected with the push pipe 4, so that the push pipe 4 can push the anti-blocking pipe 3 to extend into the needle tube 1 of the indwelling needle; furthermore, the pushing tube 4 in the embodiment of the utility model is partially positioned in the catheter seat 2, and partially exposed outside the catheter seat 2, so that a user can push the anti-blocking tube 3 into the needle tube 1 of the indwelling needle by pushing the pushing tube 4. The push tube 4 and the catheter holder 2 may be arranged as an interference fit, i.e. there is no redundant gap between the outer wall of the push tube 4 and the catheter holder 2, so as to maintain the tightness of the catheter holder 2 and the indwelling tube. Further, a guiding inclined plane is arranged between one end of the anti-blocking pipe 3, which is close to the detaining needle tube 1, and the detaining needle tube 1, namely, when the push pipe 4 pushes the anti-blocking pipe 3, the guiding inclined plane guides the anti-blocking pipe 3 to the tube orifice of the detaining needle tube 1, so that the anti-blocking pipe 3 can extend into the detaining needle tube 1. Furthermore, the anti-blocking pipe 3 of the embodiment of the utility model is made of soft rubber pipe.

Namely, when the indwelling needle is not used for transfusion, the anti-blocking pipe 3 stretches into the indwelling needle tube 1, so that the blood of a patient can be prevented from flowing back into the indwelling needle, and the indwelling needle is prevented from being blocked.

Further, the catheter holder 2 is supported by the fixing support 5 according to the embodiment of the present utility model, and the fixing adhesive film 51 is adhered to the fixing support 5 for being adhered and fixed at the application position. That is, the fixing support 5 of the embodiment of the utility model can fix the catheter seat 2 on the fixing support 5 to play a role in stabilizing the indwelling needle, and furthermore, the fixing support 5 of the embodiment of the utility model is also provided with the fixing adhesive film 51, so that the fixing adhesive film 51 can be directly adhered to the skin of a human body to play a role in fixing the indwelling needle in practical application.

The catheter cap 21 is arranged at one end of the catheter seat 2 far away from the indwelling needle tube 1, and the catheter cap 21 can be screwed and sealed with the catheter seat 2. The catheter cap 21 is matched with the catheter seat 2 in a spiral knob mode, and when the indwelling needle is not used for transfusion, the catheter cap 21 can seal the catheter seat 2, so that the indwelling needle is kept clean and free from pollution.

Further, the outer diameter of the anti-blocking pipe 3 corresponds to the diameter of the remaining needle tube 1. The outer diameter of the anti-blocking pipe 3 corresponds to the diameter of the detaining needle tube 1, which means that the anti-blocking pipe 3 can extend into the detaining needle tube 1 and no redundant gap exists between the anti-blocking pipe and the inner wall of the detaining needle tube 1.

Further, a branch pipe 22 is arranged on the catheter seat 2 of the embodiment of the utility model, and the branch pipe 22 is connected with the infusion extension pipe 6.

The end of the infusion extension tube 6 is provided with a positive pressure joint 7. Further, the indwelling needle further comprises a heparin cap 8, and the heparin cap 8 is sleeved outside the positive pressure connector 7. Furthermore, by the design of the internal thread cover of the heparin cap 8, when the heparin cap 8 is connected with the positive pressure joint 7, the heparin cap 8 can be used for threaded installation from the sleeving of the positive pressure joint 7, so that the indwelling needle forms a sealing structure, the possibility that bacteria enter the positive pressure joint 7 and enter the indwelling needle tube 1 along the infusion extension tube 6 is effectively reduced, and the embodiment of the utility model has simple structure and is convenient for a user to use.

The embodiment of the utility model has the beneficial effects that: the retaining needle comprises a needle tube of the retaining needle, a catheter seat, an anti-blocking tube, a pushing tube and a fixing bracket; the retaining needle tube is communicated with one end of the catheter seat, the anti-blocking tube is positioned in the catheter seat, one end of the anti-blocking tube, which is far away from the retaining needle tube, is connected with the push tube, and the push tube is used for pushing the anti-blocking tube to extend into the retaining needle tube; the anti-blocking pipe can extend into the needle tube of the indwelling needle when the indwelling needle is not in transfusion, and can prevent blood of a patient from flowing backwards into the indwelling needle, so that the indwelling needle is prevented from being blocked.

The fixed support supports the catheter seat, and a fixed adhesive film is adhered to the fixed support for adhering and fixing at an application position. The catheter seat can be fixed on the fixed support by the fixed support to play a role in stabilizing the indwelling needle, and furthermore, the fixed support provided by the embodiment of the utility model is also provided with the fixed adhesive film, so that the fixed adhesive film can be directly adhered to the skin of a human body to play a role in fixing the indwelling needle in actual application.

The heparin cap is sleeved on the positive pressure joint, so that the indwelling needle can form a sealing structure, the possibility that bacteria enter the positive pressure joint and enter the indwelling needle tube along the infusion extension tube is effectively reduced, and the indwelling needle is simple in structure and convenient for a user to use.

Example two

The indwelling needle has the advantages that the indwelling needle is convenient to use, the puncture frequency of a patient is reduced, and accordingly the repeated puncture effect during clinical infusion is reduced, so that the situation that the patient is wetted during bath or other time exists, bacterial infection occurs around a puncture point due to wetting, and therefore the indwelling needle waterproof protective sleeve is required to be designed, so that the indwelling needle and the puncture point are guaranteed to be clean and dry, and infection is avoided around the puncture point.

The indwelling needle waterproof protective sleeve provided by the embodiment of the utility model is used for protecting the indwelling needle in the first embodiment from being wet and polluted.

The indwelling needle waterproof protective sleeve of the embodiment of the utility model comprises a waterproof protective sleeve main body 9, a tightening ring 10, a snap fastener sticking strip 11 and absorbent cotton 12 for absorbing water;

the protective sleeve body is a cylinder with two open ends; the tightening rings 10 are connected to two ends of the waterproof protective sleeve; the tightening ring 10 can tighten the opening of the waterproof protective sleeve main body 9, and can prevent water from flowing into the waterproof protective sleeve main body 9 to wet the indwelling needle. Furthermore, the tightening ring 10 and the waterproof protective sleeve body 9 of the embodiment of the utility model can be set with different model sizes so as to adapt to the requirements of different patient sizes or different positions.

The primary and secondary buckle adhesive strips 11 are arranged on the outer wall of the tightening ring 10, and the tightening ring 10 can be further tightly tightened through the primary and secondary buckle adhesive strips 11; the primary and secondary buckle sticking strip 11 of the embodiment of the utility model comprises a rough surface and a hook surface, the tightening ring 10 can be further tightened by matching the rough surface and the hook surface, and the primary and secondary buckle sticking strip 11 can be adjusted in tightness degree by a single-hand operation mode, thereby being very convenient for patients to operate.

The absorbent cotton 12 is arranged on the inner wall of the tightening ring 10 and automatically absorbs water. When water enters from the opening of the retaining needle waterproof protective sleeve main body 9 along the arm and other places, the water-absorbing cotton 12 can automatically absorb the water, and the drying of the environment where the retaining needle is located is further ensured. The materials of the waterproof protective sleeve body 9 and the tightening ring 10 are waterproof materials.

Further, the waterproof protective sleeve main body 9 is made of transparent waterproof materials, so that the conditions of the detained needle and the puncture point can be observed conveniently.

Further, the absorbent cotton 12 is detachably disposed on the inner wall of the tightening ring 10. The detachable setting can be changed absorbent cotton 12 on the inner wall of the tightening ring 10, and absorbent cotton 12 has adsorbed moisture for guaranteeing that absorbent cotton 12 can fully absorb water and can be changed absorbent cotton 12.

The embodiment of the utility model has the beneficial effects that: the retention needle waterproof protective sleeve comprises a waterproof protective sleeve main body, a tightening ring, a snap fastener sticking strip and absorbent cotton for absorbing water.

The tightening rings are connected to two ends of the waterproof protective sleeve; the opening of the waterproof protective sleeve main body can be tightened by the tightening ring, so that water can be prevented from flowing into the waterproof protective sleeve main body to wet the indwelling needle.

The primary and secondary knot paste strip sets up on the outer wall of receiving the ring, can make the ring of tightening up closely further tighten up through primary and secondary knot paste strip, further prevent that rivers from drenching the retention needle in the waterproof protective sheath main part.

The absorbent cotton is arranged on the inner wall of the tightening ring and automatically absorbs water. When water enters from the opening of the retaining needle waterproof sleeve main body along the arm and other places, the water-absorbing cotton can automatically absorb the water, so that the retaining needle is further ensured to be dried.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures. In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An indwelling needle, characterized in that: comprises an indwelling needle tube (1), a catheter seat (2), an anti-blocking tube (3), a push tube (4) and a fixed bracket (5);

the remaining needle tube (1) is communicated with one end of the catheter seat (2),

the anti-blocking pipe (3) is positioned in the catheter seat (2), one end of the anti-blocking pipe (3) away from the indwelling needle tube (1) is connected with the pushing pipe (4), and the pushing pipe (4) is used for pushing the anti-blocking pipe (3) to extend into the indwelling needle tube (1);

the fixed support (5) is used for supporting the catheter seat (2), and a fixed adhesive film (51) is adhered to the fixed support (5) and used for adhering and fixing the indwelling needle at an application position.

2. The indwelling needle according to claim 1, wherein:

one end of the catheter seat (2) far away from the indwelling needle tube (1) is provided with a catheter cap (21), and the catheter cap (21) can be tightly screwed and sealed with the catheter seat (2).

3. The indwelling needle according to claim 1, wherein:

the outer diameter of the anti-blocking pipe (3) corresponds to the diameter of the remaining needle tube (1).

4. The indwelling needle according to claim 1, wherein:

a branch pipe (22) is arranged on the catheter seat (2), and the branch pipe (22) is connected with the infusion extension pipe (6).

5. The indwelling needle according to claim 4, wherein:

the end part of the infusion extension tube (6) is provided with a positive pressure joint (7).

6. The indwelling needle according to claim 5, wherein:

the indwelling needle further comprises a heparin cap (8), and the heparin cap (8) is sleeved outside the positive pressure connector (7).

7. A water-proof protective cover for an indwelling needle, for protecting the indwelling needle according to any one of claims 1 to 6, characterized in that: comprises a waterproof protective sleeve main body (9), a tightening ring (10), a snap fastener sticking strip (11) and absorbent cotton (12) for absorbing water;

the waterproof protective sleeve main body (9) is a cylinder with two open ends;

the tightening rings (10) are connected to two ends of the waterproof protective sleeve;

the primary and secondary buckle adhesive strips (11) are arranged on the outer wall of the tightening ring (10), and the tightening ring (10) is tightly tightened through the primary and secondary buckle adhesive strips (11);

the absorbent cotton (12) is arranged on the inner wall of the tightening ring (10) and automatically absorbs water.

8. The indwelling needle waterproof protective sleeve according to claim 7, wherein:

the waterproof protective sleeve main body (9) and the tightening ring (10) are made of waterproof materials.

9. The indwelling needle waterproof protective sleeve according to claim 7, wherein:

the waterproof protective sleeve main body (9) is made of transparent waterproof materials.

10. The indwelling needle waterproof protective sleeve according to claim 7, wherein:

the absorbent cotton (12) is detachably arranged on the inner wall of the tightening ring (10).