CN219516476U - Hemodialysis pjncture needle with syringe needle protective structure - Google Patents

Abstract

The utility model discloses a hemodialysis puncture needle with a needle head protection structure, and relates to the technical field of puncture needles. The utility model comprises a flexible catheter, a fixed casing and a puncture needle, wherein one end of the fixed casing is provided with a movable sleeve, the outer end of the movable sleeve is provided with a sealing component, the sealing component consists of a plurality of rubber sheets, the inner end of the puncture needle is fixedly connected with a fixed pipe, a communicating pipe is arranged in the flexible catheter, both ends of the communicating pipe are fixedly connected with cannulas, the flexible catheter and the fixed pipe are respectively connected with the communicating pipe through two cannulas, the outer surface of the fixed casing is provided with external threads, the inner wall of the movable sleeve is provided with internal threads, the peripheral side surface of the fixed casing is provided with a plurality of external notches, the peripheral side surface of the movable sleeve is fixedly connected with a fixed ring, the outer surface of the fixed ring is provided with an anti-skid layer, and the external threads are in threaded fit with the internal threads. The utility model can protect the puncture needle head, and the puncture needle head can adjust the extending distance, thereby being beneficial to use.

Description

Hemodialysis pjncture needle with syringe needle protective structure

Technical Field

The utility model belongs to the technical field of puncture needles, and particularly relates to a hemodialysis puncture needle with a needle head protection structure.

Background

Puncture is a term of medical operation, which is a diagnosis and treatment technology for taking secretion from a body cavity by a puncture needle for testing, injecting gas or contrast medium into the body cavity for contrast examination, or injecting medicine into the body cavity, and the purpose of puncture is blood taking testing, blood transfusion, infusion and catheter for angiography. At present, the existing puncture needles have the inconvenience when in use: the existing puncture needles are single in structure, the risk of hurting people due to needle pricking occurs easily in the process of putting in the protection box, and the needle put in the protection box is easy to fall off, so that the equipment is easy to suffer from external environment pollution, and secondly, the existing puncture needles with the protection structure cannot adjust the extending distance of the needle head, so that the puncture needles are unfavorable for use according to actual conditions, and therefore, the hemodialysis puncture needle with the needle head protection structure is provided to solve the problems.

Disclosure of Invention

The utility model aims to provide a hemodialysis puncture needle with a needle head protection structure, which solves the problems that the existing puncture needles are single in structure, the risk of needle stabbing is easy to occur in the process of putting the protection box, and the needles put in the protection box are easy to fall off, so that equipment is easy to suffer from external environment pollution, and the existing puncture needles with the protection structure cannot adjust the extending distance of the needle heads, so that the existing hemodialysis puncture needle is unfavorable for use according to actual conditions.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a hemodialysis puncture needle with a needle head protection structure, which comprises a soft catheter, a fixed casing and a puncture needle head, wherein one end of the fixed casing is provided with a movable casing, the outer end of the movable casing is provided with a sealing component, the sealing component consists of a plurality of rubber sheets, the inner end of the puncture needle head is fixedly connected with a fixed pipe, a communicating pipe is arranged in the soft catheter, two ends of the communicating pipe are fixedly connected with a cannula, and the soft catheter and the fixed pipe are respectively connected with the communicating pipe through two cannulas.

The fixed casing surface is provided with the external screw thread, removes the sleeve pipe inner wall and is provided with the internal screw thread, external screw thread and internal screw thread screw-thread fit, carries out threaded connection through external screw thread, internal screw thread between fixed casing and the removal sleeve pipe, through setting up fixed casing, removal sleeve pipe, because remove and carry out threaded connection through external screw thread, internal screw thread between sleeve pipe and the fixed casing to rotatable messenger removes the sleeve pipe.

A plurality of outer notches are formed in the peripheral side face of the fixed casing, the peripheral side face of the movable casing is fixedly connected with a fixed ring, an anti-slip layer is arranged on the outer surface of the fixed ring, the outer notches are formed in the peripheral side face of the fixed casing, fingers are convenient to pinch the fixed casing, and the anti-slip layer is arranged on the outer surface of the fixed ring, so that friction force generated when the fixed ring is rotated is improved.

The sealing assembly seals the movable sleeve, the puncture needle is arranged in the movable sleeve, the movable sleeve protects the puncture needle by arranging the sealing assembly and the movable sleeve, the puncture needle is prevented from being damaged, the sealing assembly seals the movable sleeve, and external pollution is reduced to enter the movable sleeve.

The utility model has the following beneficial effects:

according to the utility model, the fixed casing and the movable casing are arranged, and the movable casing is in threaded connection with the fixed casing through the external threads and the internal threads, so that the movable casing can be rotated to move; by arranging the sealing component and the movable sleeve, the movable sleeve protects the puncture needle head, so that the puncture needle head is prevented from being damaged, the sealing component seals the movable sleeve, external pollution is reduced to enter the movable sleeve, the puncture needle head can be protected, the problem that a needle put into a protection box easily falls off, equipment is easily polluted by external environment is avoided, and the puncture needle head can adjust the extending distance, so that the puncture needle head is beneficial to being used according to actual conditions, and the limitation is reduced.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present 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 schematic view of a hemodialysis needle of the present utility model with a needle guard;

FIG. 2 is a schematic rear view of a hemodialysis needle with needle guard of the present utility model;

FIG. 3 is a schematic view in section A-A of FIG. 2;

FIG. 4 is an enlarged partial view of portion A of FIG. 1;

FIG. 5 is an enlarged partial view of portion B of FIG. 3;

fig. 6 is a partial enlarged view of a portion C of fig. 3.

In the drawings, the list of components represented by the various numbers is as follows:

1. a soft catheter; 2. fixing the casing; 3. moving the sleeve; 4. a closure assembly; 5. a rubber sheet; 6. an outer notch; 7. a fixing ring; 8. an anti-slip layer; 9. a communicating pipe; 10. a fixed tube; 11. a cannula; 12. a puncture needle; 13. an external thread; 14. and (5) an internal thread.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the utility model discloses a hemodialysis puncture needle with a needle head protection structure, which comprises a flexible catheter 1, a fixed sleeve 2 and a puncture needle head 12, wherein one end of the fixed sleeve 2 is provided with a movable sleeve 3, the outer end of the movable sleeve 3 is provided with a sealing component 4, the sealing component 4 consists of a plurality of rubber sheets 5, the inner end of the puncture needle head 12 is fixedly connected with a fixed tube 10, a communicating tube 9 is arranged in the flexible catheter 1, two ends of the communicating tube 9 are fixedly connected with a cannula 11, the flexible catheter 1 and the fixed tube 10 are respectively connected with the communicating tube 9 through the two cannulas 11 and the communicating tube 9, and the cannulas 11 are arranged at two sides of the communicating tube 9, so that the flexible catheter 1 is convenient to replace and mount, the fixed tube 10 is a hard tube, and the communicating tube 9 is convenient to support.

The fixed casing 2 surface is provided with external screw thread 13, and the removal sleeve 3 inner wall is provided with internal screw thread 14, and external screw thread 13 and internal screw thread 14 screw-thread fit carry out threaded connection through external screw thread 13, internal screw thread 14 between fixed casing 2 and the removal sleeve 3, through setting up fixed casing 2, removal sleeve 3, because carry out threaded connection through external screw thread 13, internal screw thread 14 between removal sleeve 3 and the fixed casing 2 to rotatable messenger removes sleeve 3.

A plurality of outer notches 6 have been seted up to fixed cover shell 2 week side, and fixed ring 7 is fixed to removal sleeve pipe 3 week side fixedly connected with, and fixed ring 7 surface is provided with skid resistant course 8, through set up outer notch 6 at fixed cover shell 2 week side, and fixed cover shell 2 is pinched to outer notch 6 be convenient for the finger, through set up skid resistant course 8 at fixed ring 7 surface to improve the frictional force when rotating fixed ring 7.

The sealing assembly 4 seals the movable sleeve 3 tightly between the rubber sheets 5, the puncture needle 12 is arranged in the movable sleeve 3, the movable sleeve 3 protects the puncture needle 12 by arranging the sealing assembly 4 and the movable sleeve 3, the puncture needle 12 is prevented from being damaged, the sealing assembly 4 seals the movable sleeve 3, and external pollution is reduced to enter the movable sleeve 3.

The embodiment is a method for using a hemodialysis puncture needle with a needle head protection structure: when the puncture needle 12 needs to be taken out, the movable sleeve 3 can be rotated through the fixed ring 7, the movable sleeve 3 can be rotated to move due to the fact that the movable sleeve 3 is in threaded connection with the fixed sleeve 2 through the external threads 13 and the internal threads 14, when the movable sleeve 3 moves backwards on the fixed sleeve 2, the puncture needle 12 can be exposed through the sealing assembly 4, and the exposure length of the puncture needle 12 can be adjusted according to the rotation distance.

As shown in fig. 1-5, in the description of the present specification, the description referring to the terms "one embodiment," "example," "specific example," and the like, means 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (7)

1. Hemodialysis pjncture needle with needle guard structure includes flexible conduit (1), fixed cover shell (2) and pjncture needle (12), its characterized in that: fixed sleeve (2) one end is provided with and removes sleeve pipe (3), it is provided with seal assembly (4) to remove sleeve pipe (3) outer end, seal assembly (4) are constituteed by a plurality of sheet rubber (5), puncture needle (12) inner fixedly connected with fixed pipe (10), be provided with communicating pipe (9) in flexible pipe (1), communicating pipe (9) both ends equal fixedly connected with intubate (11), flexible pipe (1) and fixed pipe (10) are connected through two intubates (11) and communicating pipe (9) respectively.

2. Hemodialysis puncture needle with needle protection structure according to claim 1, characterized in that the outer surface of the stationary casing (2) is provided with external threads (13) and the inner wall of the moving casing (3) is provided with internal threads (14).

3. Hemodialysis puncture needle with needle protection structure according to claim 1, characterized in that several external notches (6) are provided on the peripheral side of the stationary casing (2).

4. Hemodialysis puncture needle with needle protection structure according to claim 1, characterized in that the peripheral side surface of the movable sleeve (3) is fixedly connected with a fixing ring (7), and the outer surface of the fixing ring (7) is provided with an anti-slip layer (8).

5. Hemodialysis puncture needle with needle protection structure according to claim 2, characterized in that the external thread (13) and the internal thread (14) are in threaded fit, and the fixed sleeve (2) and the movable sleeve (3) are in threaded connection through the external thread (13) and the internal thread (14).

6. Hemodialysis puncture needle with needle protection structure according to claim 1, characterized in that several rubber sheets (5) are tightly attached, and the closing component (4) closes the moving cannula (3).

7. Hemodialysis needle with needle protection structure according to claim 1, characterized in that the needle (12) is placed inside a moving cannula (3).