CN219538451U - Puncture device - Google Patents

Abstract

The utility model provides a puncture device, and belongs to the field of medical appliances. Solves the problem that the puncture needle in the existing arteriovenous indwelling needle is easy to stab medical staff and causes cross infection. The utility model comprises a catheter seat, wherein the front end of the catheter seat is provided with an indwelling catheter, the catheter seat is communicated with an infusion catheter, a needle seat is arranged in the catheter seat, a puncture needle is arranged in the indwelling catheter, a cavity with the length longer than that of the puncture needle is arranged in the needle seat, the tail part of the puncture needle is arranged in the cavity and is in clearance fit with the cavity, a telescopic adjusting device is connected to the puncture needle, a limiting device used for clamping the telescopic adjusting device is arranged on the needle seat, and a sealing plug is also arranged between the infusion catheter and the needle seat in the catheter seat. The puncture needle is contained in the needle seat, so that the problem of cross infection caused by puncture of the puncture needle in the process of transfusion of a patient or treatment of waste by medical staff can be effectively solved.

Description

Puncture device

Technical Field

The utility model belongs to the technical field of medical instruments, and relates to a puncture device.

Background

Clinically, all liquid medicine can be almost infused into a human body through blood vessels, so that the purposes of treating and preventing diseases are realized, and in clinic, the arteriovenous indwelling needle (tube) technology is commonly used for avoiding the damage of the blood vessels caused by repeated puncture and reducing the pain of patients and also reducing the operation intensity of medical staff.

The existing arteriovenous indwelling needle technology used clinically mostly comprises the following steps: 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, the indwelling needle is guided into the blood vessel of the patient through the puncture needle, and finally, the puncture needle is withdrawn, so that the indwelling needle is left in the blood vessel of the patient and is fixed by the application film.

However, since the tip of the steel needle is very sharp, when the operation of puncturing the indwelling needle is completed, the operator may be pricked when the puncture needle is pulled out, and the medical staff may be pricked when handling the waste, and may cause cross infection. In addition, steel needles also present a risk of causing infection to medical personnel when post-processing medical waste.

Therefore, a puncture device is needed to solve the problem that the puncture needle in the existing arteriovenous indwelling needle is easy to puncture medical staff and causes cross infection.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a puncture device.

The technical scheme adopted by the utility model is as follows:

the utility model provides a puncture device, includes the catheter holder, the front end of catheter holder is provided with the catheter of keeping somewhere, catheter holder intercommunication has the infusion catheter, the inside needle file that is equipped with of catheter holder, be equipped with the pjncture needle in the catheter of keeping somewhere, the inside of needle file is equipped with length and is greater than the cavity of pjncture needle, the afterbody of pjncture needle is located in the cavity and with clearance fit between the cavity, be connected with flexible adjusting device on the pjncture needle, be equipped with the stop device who is used for chucking flexible adjusting device on the needle file, still be equipped with the sealing plug between infusion catheter and the needle file in the catheter holder.

The specific working principle of the technical scheme is as follows:

during transfusion, the indwelling catheter is guided into the blood vessel of a patient through puncture, after the puncture is completed, the puncture needle is accommodated in the needle seat and clamped by the limiting device by pulling the telescopic adjusting device backwards, the needle seat is finally pulled out, and the catheter seat is fixed near the punctured part of the patient by using the adhesive tape.

Preferably, the needle seat is provided with a chute for the telescopic adjusting device to move along the telescopic direction of the puncture needle in a penetrating way, and one side of the telescopic adjusting device extends out of the chute.

The puncture needle is accommodated in the needle seat by sliding on the sliding groove through the telescopic adjusting device, so that the use is very convenient.

Preferably, the limiting device comprises a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are respectively located at two ends of the sliding groove, the first limiting groove and the second limiting groove extend from the sliding groove along the direction perpendicular to the stretching direction of the puncture needle, and the stretching adjusting device is matched with the first limiting groove and the second limiting groove.

Before using, the telescopic adjusting device is clamped in the first limiting groove, after the puncture is completed, the telescopic adjusting device slides out of the first limiting groove into the second limiting groove, and the puncture needle is stored.

Preferably, the telescopic adjusting device is a needle handle, and the needle handle is fixedly sleeved at the tail part of the puncture needle.

The needle handle is convenient to use and hold.

Preferably, the needle seat is detachably connected with the catheter seat and is in clearance fit.

The clearance fit is convenient for pulling out the needle seat from the catheter seat after the puncture is completed, and the needle seat cannot deviate.

Preferably, the end of the infusion catheter is connected with a positive pressure connector.

The positive pressure connector can be in a closed state under the condition that no connecting piece is connected with the positive pressure connector, the sterile state is kept, and when the infusion is replaced or finished, a positive pressure is generated when the injector is pulled down, so that the liquid in the connecting pipe can be automatically pushed forward, and blood can be prevented from flowing back into the indwelling needle.

Preferably, the infusion catheter is provided with a bar-shaped clamp, the bar-shaped clamp is provided with a bar-shaped hole, the aperture of one end of the bar-shaped hole is larger than the outer diameter of the infusion catheter, and the aperture of the other end of the bar-shaped hole is smaller than twice the thickness of the side wall of the infusion catheter.

When the strip-shaped clamp is arranged and the liquid medicine is normally conveyed, the infusion catheter slides on one side of which the aperture is larger than the outer diameter of the infusion catheter, when medicine changing is needed or medicine feeding is completed, the infusion catheter slides on one side of which the aperture is smaller than the double wall thickness of the infusion catheter, the infusion catheter is extruded to prevent liquid inside the tube from flowing backwards, and blood of a patient is prevented from flowing backwards into the infusion catheter, so that medicine changing of the patient or temporary medicine feeding without the condition of the patient is guaranteed, and medicine feeding safety of the patient is guaranteed.

Preferably, a protective sleeve is sleeved on the indwelling catheter.

The protective sleeve can maintain the aseptic condition before use, and avoid the operator from being stabbed by the puncture needle.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

after the puncture is completed, the puncture needle is accommodated in the needle seat by sliding the needle handle from the first limit groove to the second limit groove, so that the problem of cross infection caused by puncture of the puncture needle in the process of transfusion for a patient by medical staff or when the waste is treated can be effectively solved, the structure is simple, the use is convenient, the use of the medical transfusion remaining needle is facilitated, and the practicability is strong.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

fig. 3 is a schematic view of the structure of the needle hub of the present utility model;

fig. 4 is a schematic view showing the structure of the puncture needle of the present utility model accommodated in the needle holder.

Reference numerals: 1-catheter seat, 2-indwelling catheter, 3-infusion catheter, 4-needle seat, 5-puncture needle, 6-sealing plug, 7-chute, 8-first limit groove, 9-second limit groove, 10-needle handle, 11-positive pressure joint, 12-bar clamp and 13-protective sleeve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

In describing embodiments of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. refer to an azimuth or a positional relationship based on that shown in the drawings, or that the inventive product is conventionally put in place when used, merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The present utility model will be described in detail with reference to fig. 1 to 4.

This embodiment provides a puncture device, refer to fig. 1, including catheter holder 1, catheter holder 1's front end is equipped with and keeps somewhere catheter 2, catheter holder 1 intercommunication has infusion catheter 3, catheter holder 1 is inside to be equipped with needle file 4, clearance fit between needle file 4 and the catheter holder 1, keep somewhere and be equipped with pjncture needle 5 in catheter 2, the inside of needle file 4 is equipped with the cavity for accomodate pjncture needle 5, the length of cavity is greater than pjncture needle 5's length, pjncture needle 5's afterbody is installed in the cavity and with clearance fit between the cavity, refer to fig. 3 and fig. 4, needle handle 10 is installed to pjncture needle 5's afterbody, needle file 4 runs through along pjncture needle 5's flexible direction and is equipped with spout 7, be used for needle handle 10 to reciprocate, needle file 4 is equipped with first spacing groove 8 and the second spacing groove 9 that are used for chucking needle handle 10 at the both ends of spout 7, first spacing groove 8 and second spacing groove 9 extend along the direction that is perpendicular to pjncture needle 5 are flexible, refer to fig. 2, still be equipped with 6 in catheter holder 1 between needle file 3 and needle file 4, pjncture needle 5's afterbody 5, pjncture needle 5 installs 5 before the device uses, needle handle 5 is installed in needle 6, needle handle 6 is equipped with 6, and is kept somewhere in catheter sealing plug 2.

In this embodiment, the end of the infusion catheter 3 is connected to a positive pressure connector 11.

In this embodiment, the infusion catheter 3 is provided with a bar-shaped clip 12, and the bar-shaped clip 12 is provided with a bar-shaped hole, one end of which has a larger diameter than the outer diameter of the infusion catheter 3 and the other end of which has a smaller diameter than the double wall thickness of the infusion catheter 3, i.e. twice the thickness of the side wall.

In this embodiment, the indwelling catheter 2 is provided with a protective sheath 13.

The specific working principle of the above embodiment is as follows:

when the indwelling needle is installed for an infusion patient, the indwelling catheter 2 is guided into the blood vessel of the patient through the puncture needle 5 by pulling out the protective sleeve 13 on the indwelling catheter 2, after the puncture is completed, the needle handle 10 slides out of the first limit groove 8 into the second limit groove 9, the puncture needle 5 is pulled out of the sealing plug 6, the sealing plug 6 is closed after being tightened, liquid cannot pass through, the needle seat 4 is pulled out finally, the catheter seat 1 is fixed near the punctured part of the patient through the adhesive tape, and the puncture and the installation of the indwelling needle for the infusion patient are completed. The pulled needle seat 4 is completely contained in the cavity of the needle seat 4, so that medical staff cannot be pricked by the puncture needle 5 when using the indwelling needle and subsequently treating the waste, the needle seat is quite safe, and the problem of cross infection caused by the puncture needle 5 in the arteriovenous indwelling needle when the medical staff infuses for a patient is effectively avoided.

The above examples merely illustrate specific embodiments of the utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the utility model, which fall within the scope of protection of the utility model.

Claims (6)

1. The utility model provides a puncture device, includes catheter holder (1), catheter holder (1) front end is provided with and detains catheter (2), catheter holder (1) intercommunication has infusion catheter (3), a serial communication port, catheter holder (1) inside is equipped with needle file (4), be equipped with pjncture needle (5) in keeping somewhere catheter (2), needle file (4) inside is equipped with length and is greater than pjncture needle (5) cavity, pjncture needle (5) afterbody locate in the cavity and with clearance fit between the cavity, be connected with flexible adjusting device on pjncture needle (5), needle file (4) are run through along pjncture needle (5) flexible direction and are equipped with spout (7) that supply flexible adjusting device to move about, one side of flexible adjusting device extends outside spout (7), be equipped with the stop device that is used for flexible adjusting device on needle file (4), stop device includes first spacing groove (8) and second spacing groove (9), first spacing groove (8) and second spacing groove (9) are located respectively in the cavity and with clearance fit between the cavity, flexible adjusting device (9) are followed two limit grooves (8) and are perpendicular to expansion adjusting device (9), a sealing plug (6) is arranged between the infusion catheter (3) and the needle seat (4) in the catheter seat (1).

2. The puncture device according to claim 1, characterized in that the telescopic adjusting device is a needle handle (10), and the needle handle (10) is fixedly sleeved at the tail of the puncture needle (5).

3. A puncturing device according to claim 1, wherein the needle hub (4) is detachably connected to the catheter hub (1) and is in a clearance fit.

4. A puncturing device according to claim 1, wherein the end of the infusion catheter (3) is connected with a positive pressure connector (11).

5. A puncture device according to claim 1, characterized in that the infusion catheter (3) is provided with a bar-shaped clip (12), the bar-shaped clip (12) is provided with a bar-shaped hole, one end aperture of the bar-shaped hole is larger than the outer diameter of the infusion catheter (3), and the other end aperture is smaller than twice the thickness of the side wall of the infusion catheter (3).

6. A puncture device according to claim 1, characterized in that the indwelling catheter (2) is provided with a protective sheath (13).