CN217853229U - Puncture needle with sliding guide soft wire - Google Patents

Abstract

The utility model belongs to the technical field of disposable products, in particular to a puncture needle with a sliding guiding soft wire, comprising a puncture needle main body and an indwelling hose; the puncture needle main body includes a puncture needle, and a telescopic movable The sliding guiding soft wire; the indwelling hose is sheathed outside the puncture needle, and can extend into the blood vessel of the human body under the guidance of the puncture needle and the sliding guiding soft wire. The structure and principle in this solution are simple, easy to operate, and easy to use; for patients with poor blood vessel conditions, blood vessel puncture with a high success rate can also be achieved, and the production cost of the product is low; the puncture needle in this solution only needs to be inserted at the tip Blood vessels, that is, the sliding guiding soft wire can be pushed into the blood vessel by using the handle part, and due to the soft nature of the sliding guiding soft wire, when the sliding guiding soft wire is inserted into the blood vessel, the front end of the sliding guiding soft wire can The redirection occurs following the direction of the blood vessel.

Description

A puncture needle with sliding guiding soft wire

technical field

The utility model belongs to the technical field of disposable products used in the medical industry to perform blood vessel puncture operations on patients, and in particular relates to a puncture needle with a sliding guiding soft wire.

Background technique

Vascular puncture is a basic medical operation in clinical medical work. Only after the puncture is successful and the catheter is placed smoothly, can the patient be subjected to further operations such as intravenous infusion, drug administration, and blood transfusion through the inserted needle tube. Vascular puncture needles, intravenous indwelling needles, etc., which are widely used at present, are not difficult to operate for patients with good physical conditions and good vascular conditions, but for patients with small blood vessels, insufficient filling, hardened arteries, and easy slippage of blood vessels, blood vessels The success rate of puncture will be greatly reduced, can not fully meet the needs of clinical work.

Therefore, it is necessary to design a puncture needle structure capable of puncturing blood vessels for patients with poor blood vessel conditions.

Utility model content

In order to solve the problem that the puncture needle or intravenous indwelling needle in the prior art is difficult to puncture blood vessels for patients with poor blood vessel conditions, this solution provides a puncture needle with a sliding guiding soft wire.

The technical scheme adopted in the utility model is:

A puncture needle with a sliding guide soft wire, comprising a puncture needle main body and an indwelling hose; the puncture needle main body includes a puncture needle, and a retractable and movable sliding guide soft wire is arranged in the puncture needle; the indwelling hose sleeve It is arranged outside the puncture needle, and can extend into the blood vessel of the human body under the guidance of the puncture needle and the sliding guide soft wire. The puncture needle only needs the tip to be inserted into the blood vessel, and then the handle part can be used to push the sliding guiding soft wire into the blood vessel. Due to the soft nature of the sliding guiding soft wire, when the sliding guiding soft wire is inserted into the blood vessel, the sliding guiding soft wire The front end of the guiding soft wire can change direction following the direction of the blood vessel.

As an alternative structure or supplementary design of the above-mentioned puncture needle with sliding guiding soft wire: the main body of the puncture needle also includes a puncture needle barrel, and the puncture needle head is connected to the front end of the puncture needle barrel; The rear end of the guiding soft wire is relatively fixed on the sliding handle, and the sliding handle can move along the axial direction of the puncture needle barrel to control the stretching action of the sliding guiding soft wire. The sliding handle can move back and forth in the puncture needle barrel and drive the sliding guide soft wire to move without compressing the air in the puncture needle barrel.

As an alternative structure or supplementary design of the above-mentioned puncture needle with sliding guide soft wire: a track groove is arranged on the cylinder wall of the puncture needle cylinder, and the handle part of the sliding handle protrudes out of the puncture needle cylinder from the track groove ; The sliding handle can drive the sliding handle to move back and forth synchronously along the track groove.

As an alternative structure or supplementary design of the above-mentioned puncture needle with sliding guide soft wire: the track groove is parallel to the axial direction of the puncture needle cylinder.

As an alternative structure or supplementary design of the above-mentioned puncture needle with sliding guide soft wire: a shuttle-shaped cavity is also arranged in the puncture needle barrel; pores are arranged at both ends of the shuttle-shaped cavity, so that the sliding The front end of the guiding soft wire can pass through the shuttle-shaped cavity and extend into the puncture needle; the puncture needle cylinder is made of transparent material, so as to observe the situation of blood flowing into the shuttle-shaped cavity.

As an alternative structure or supplementary design of the above-mentioned puncture needle with a sliding guide soft wire: the slide guide soft wire is a metal soft wire, and when the sliding guide soft wire is inserted into the human blood vessel, it can move along the direction of the human blood vessel and change direction . The sliding guiding soft wire can be a straight metal soft wire or a helically wound metal wire structure. The sliding guiding soft wire has certain toughness, is not easy to break, and its head end is smooth, and it is not easy to damage blood vessels.

As an alternative structure or supplementary design of the above-mentioned puncture needle with sliding guide soft wire: the handle of the indwelling hose is provided with a universal joint, which is used to connect medical equipment such as syringes.

As an alternative structure or supplementary design of the above-mentioned puncture needle with sliding guide soft wire: the puncture needle is in the shape of a straight tube, at least one observation hole is arranged on the tube wall of the puncture needle, and the indwelling hose is transparent or semi-transparent Transparent hose.

The beneficial effects of the utility model are:

1. The structure and principle of this solution are simple, easy to operate, and easy to use; for patients with poor blood vessel conditions, blood vessel puncture with a high success rate can be achieved, and the production cost of the product is low; compared with the existing blood vessel puncture Needles and intravenous indwelling needles can only be punctured for patients with straight blood vessels and good vascular puncture conditions. The structure of this program can perform vascular puncture for patients with curved blood vessels and poor vascular puncture conditions;

2. The puncture needle in this solution only needs the tip to be inserted into the blood vessel, and then the handle can be used to push the sliding guiding soft wire into the blood vessel. Due to the soft nature of the sliding guiding soft wire, when the sliding guiding soft wire is inserted into the blood vessel, During the process, the front end of the sliding guiding soft wire can change direction following the direction of the blood vessel;

3. When the main body of the puncture needle in this solution is in use, first control the handle to move backward, so that the sliding guide soft wire is stored in the puncture needle, and then use the puncture needle to penetrate the skin and visually detect blood passing through the observation hole. It can confirm that the needle tip of the puncture needle enters the blood vessel, and can also observe the blood accumulation in the shuttle-shaped cavity to assist in judging the puncture position of the needle tip.

Description of drawings

In order to more clearly illustrate the embodiment of the present solution or the technical solution in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiment or the prior art.

Fig. 1 is a structural schematic diagram of a puncture needle with a sliding guiding soft wire;

Fig. 2 is the structural representation of puncture needle;

Fig. 3 is a structural schematic diagram of the indwelling hose;

Fig. 4 is an internal structure diagram of the puncture needle main body.

In the figure: 1-sliding guide soft wire; 2-observation hole; 3-puncture needle; 4-puncture needle barrel; 5-handle part; 6-dwelling hose; 7-track groove;

Detailed ways

The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiment is only a part of the embodiment, not all. Based on the embodiment in this solution, those of ordinary skill in the art will All other embodiments obtained under the premise of no creative work belong to the protection scope of this scheme.

Example 1

Vascular puncture is a basic medical operation in clinical medical work. Only after the puncture is successful and the catheter is placed smoothly, can the patient be subjected to further operations such as intravenous infusion, drug administration, and blood transfusion through the inserted needle tube. Vascular puncture needles, intravenous indwelling needles, etc., which are widely used at present, are not difficult to operate for patients with good physical conditions and good vascular conditions, but for patients with small blood vessels, insufficient filling, hardened arteries, and easy slippage of blood vessels, blood vessels The success rate of puncture will be greatly reduced, can not fully meet the needs of clinical work.

As shown in FIGS. 1 to 4 , this embodiment designs a puncture needle with a sliding guiding soft wire, including a puncture needle body and an indwelling hose 6 .

The puncture needle body includes a puncture needle head 3 and a puncture needle barrel 4 .

The puncture needle 3 is tubular and can be made of stainless steel. The front end of the puncture needle 3 is obliquely sharp and can puncture into blood vessels of the human body.

The puncture needle 3 is provided with a retractable and movable sliding guiding soft wire 1; the sliding guiding soft wire 1 is a metal soft wire, and when the sliding guiding soft wire 1 extends into the human blood vessel, it can move along the direction of the human blood vessel and change direction. . The sliding guiding soft wire 1 should have a certain degree of toughness, not easy to break, and the head end should be smooth, so that the sliding guiding soft wire 1 does not curl or bend in the blood vessel during the process of advancing by the sliding handle to ensure smooth advancement.

The puncture needle cylinder 4 can adopt a cylindrical structure, and a sliding handle is arranged inside the puncture needle cylinder 4, and the rear end of the sliding guiding soft wire 1 is relatively fixed on the sliding handle, and the sliding handle can move along the axial direction of the puncture needle cylinder 4 The stretching action of soft silk 1 is guided by sliding. The puncture needle 3 is connected to the front end of the puncture needle cylinder 4, and the puncture needle cylinder 4 is used as a handle for medical personnel to operate the puncture needle 3 when in use.

The indwelling hose 6 is sheathed on the outside of the puncture needle 3, and can extend into the blood vessel of the human body under the guidance of the puncture needle 3 and the sliding guiding soft wire 1. The handle of the indwelling hose 6 is provided with a universal joint, which is used to connect common medical tools and equipment such as syringes.

Example 2

On the basis of the structure of Embodiment 1, in order to facilitate the control of the telescopic movement of the sliding guiding soft wire 1, a track groove 7 may be provided on the cylinder wall of the puncture needle cylinder 4, and a handle part may be provided on the sliding handle 5; a part of the handle part 5 extends out of the puncture needle cylinder 4 from the track groove 7; the track groove 7 is parallel to the axial direction of the puncture needle cylinder 4; the handle part 5 can drive the sliding handle synchronously along the track groove 7 forward and backward movement.

In addition, for the convenience of medical staff when using the puncture needle in this solution, they can judge whether the front end of the puncture needle 3 is inserted into the blood vessel. At least one observation hole 2. In this embodiment, two observation holes 2 are provided along the puncture needle 3. The indwelling hose 6 is a transparent or translucent hose. After the front end of the puncture needle 3 is inserted into the blood vessel, the blood will flow back along the puncture needle 3 to the observation hole 2, thereby assisting in judging the puncture of the blood vessel.

The puncture needle cylinder 4 is also provided with a shuttle-shaped cavity 8, as shown in FIG. shaped cavity 8 and extend into the puncture needle 3;

When the structure in this embodiment is in use, first control the handle part 5 to move backward, so that the sliding guiding soft wire 1 is accommodated in the puncture needle 3, and the indwelling hose 6 is sleeved on the puncture needle 3, so that the puncture needle 3 The needle tip at the front end extends out of the indwelling hose 6; then use the puncture needle 3 to penetrate the skin, and when blood passes through the observation hole 2, you can confirm that the needle tip of the puncture needle 3 enters the blood vessel, and then fix the position and operate the handle part 5. Slide and advance from the rear end of the puncture needle cylinder 4 along the track groove 7 toward the needle tip, so that the sliding guiding soft wire 1 enters the blood vessel, and then pinch the tail end of the indwelling sleeve and push it forward, so that the indwelling sleeve is sliding and guiding. Under the guidance of the soft wire 1, push it into the blood vessel. After successful insertion, keep the position of the indwelling cannula still, then withdraw from the main body of the puncture needle, place the indwelling cannula in the blood vessel, and place the tail end of the indwelling cannula again. Connect the infusion solution, etc. and apply it to fix it. Compared with the existing vascular puncture needle and intravenous indwelling needle, which can only perform vascular puncture on patients with straight blood vessels and good vascular puncture conditions, the structure of this scheme can perform vascular puncture on patients with curved blood vessels and poor vascular puncture conditions .

Example 3

As shown in FIG. 2 , a puncture needle body is designed in this embodiment, which includes a puncture needle head 3 and a puncture needle barrel 4 .

The puncture needle 3 is tubular and can be made of stainless steel. The front end of the puncture needle 3 is sharpened and can puncture into a human blood vessel.

The puncture needle 3 is provided with a retractable and movable sliding guiding soft wire 1; the sliding guiding soft wire 1 is a metal soft wire, and when the sliding guiding soft wire 1 extends into the human blood vessel, it can move along the direction of the human blood vessel and change direction. . The sliding guiding soft wire 1 should have a certain degree of toughness, not easy to break, and the head end should be smooth, so that the sliding guiding soft wire 1 does not curl or bend in the blood vessel during the process of advancing by the sliding handle to ensure smooth advancement.

The puncture needle cylinder 4 can adopt a cylindrical structure, and a sliding handle is arranged inside the puncture needle cylinder 4, and the rear end of the sliding guiding soft wire 1 is relatively fixed on the sliding handle, and the sliding handle can move along the axial direction of the puncture needle cylinder 4 The stretching action of soft silk 1 is guided by sliding. The puncture needle 3 is connected to the front end of the puncture needle cylinder 4, and the puncture needle cylinder 4 is used as a handle for medical personnel to operate the puncture needle 3 when in use.

The above-mentioned embodiments are only examples for clearly illustrating, rather than limiting the implementation manners; it is not necessary and impossible to exhaustively enumerate all the implementation manners here. And the obvious changes or changes derived therefrom are still within the protection scope of the present technology.

Claims (8)

1. A puncture needle with sliding guiding soft wire, characterized in that: it comprises a puncture needle main body and an indwelling flexible pipe (6); the puncture needle main body includes a puncture needle (3), and the puncture needle (3) is provided with Sliding guide soft wire (1) that can be moved telescopically; the indwelling hose (6) is sheathed outside the puncture needle (3), and can extend under the guidance of the puncture needle (3) and the slide guide soft wire (1). into human blood vessels. 2. The puncture needle with sliding guide soft wire according to claim 1, characterized in that: the puncture needle body further includes a puncture needle barrel (4), and the puncture needle head (3) is connected to the front end of the puncture needle barrel (4) A sliding handle is arranged in the puncture needle cylinder (4), and the rear end of the sliding guiding soft wire (1) is relatively fixed on the sliding handle, and the sliding handle can move along the axial direction of the puncture needle cylinder (4) to control the sliding guiding soft wire. The stretching action of silk (1). 3. The puncture needle with sliding guide soft wire according to claim 2, characterized in that: the wall of the puncture needle cylinder (4) is provided with a track groove (7), and the handle part of the sliding handle ( 5) Extending out of the puncture needle cylinder (4) from the track groove (7); the sliding handle can drive the sliding handle to move back and forth synchronously along the track groove (7). 4. The puncture needle with sliding guiding soft wire according to claim 3, characterized in that: the track groove (7) is parallel to the axial direction of the puncture needle cylinder (4). 5. The puncture needle with sliding guiding soft wire according to claim 2, characterized in that: a shuttle-shaped cavity (8) is also arranged in the puncture needle barrel (4); the shuttle-shaped cavity (8) ) are provided with fine holes at both ends, so that the front end of the sliding guiding soft wire (1) can pass through the shuttle-shaped cavity (8) and extend into the puncture needle (3); the puncture needle barrel (4) is made of transparent material into, so as to observe the situation of blood flowing into the spindle-shaped cavity (8). 6. The puncture needle with a sliding guiding soft wire according to claim 1, characterized in that: the sliding guiding soft wire (1) is a metal soft wire, and when the sliding guiding soft wire (1) is inserted into a human blood vessel, it can The direction of human blood vessels shifts and changes direction. 7. The puncture needle with sliding guiding soft wire according to claim 1, characterized in that: the handle of the indwelling hose (6) is provided with a universal joint, and the universal joint is used to connect a syringe. 8. The puncture needle with sliding guide soft wire according to claim 1, characterized in that: the puncture needle (3) is in the shape of a straight tube, and at least one observation hole ( 2), the indwelling hose (6) is a transparent or translucent hose.

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