CN221105842U

CN221105842U - Medical hemostix

Info

Publication number: CN221105842U
Application number: CN202321933035.1U
Authority: CN
Inventors: 侯微微
Original assignee: Southern Theater Command General Hospital of PLA
Current assignee: Southern Theater Command General Hospital of PLA
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-06-11
Anticipated expiration: 2033-07-20

Abstract

The utility model relates to the technical field of medical blood sampling, in particular to a medical hemostix. The blood taking device comprises a catheter, blood taking needles and negative pressure needles are respectively arranged at two ends of the catheter, a connecting piece is arranged at one end, close to the negative pressure needles, of the catheter, the connecting piece is connected with a protective cover, the negative pressure needles are located inside the connecting piece, and a needle head of the negative pressure needles penetrates through the connecting piece and stretches into the protective cover. The blood collector provided by the utility model has the advantages of firm connection among all parts, simple structure, convenience in operation and low cost, can effectively improve the working efficiency of nurses, reduces the infection risk of patients, is suitable for any clinical patient needing blood collection, can be widely applied to all medical rooms, and has stronger practicability.

Description

Medical hemostix

Technical Field

The utility model relates to the technical field of medical blood sampling, in particular to a medical hemostix.

Background

At present, in clinical work, vein blood sampling test is often carried out, a split type negative pressure blood sampling needle is generally adopted, when the blood sampling needle is used, the negative pressure needle is required to be rotationally fixed on a protective cover, hand-held vein puncture is carried out on veins, after the hand-held vein puncture is successful, a vacuum blood sampling tube is inserted into the protective cover, the needle head of the negative pressure needle penetrates through a blood blocking sleeve and penetrates into a vacuum tube rubber plug, and blood is sucked into the blood sampling tube under the action of negative pressure. If necessary, repeating the steps to realize multi-tube blood sampling; after blood collection, the venous puncture needle is pulled out, local hemostasis is achieved, and the blood collection needle is taken off from the needle holder and is discarded in the waste box together with the venous puncture needle.

The negative pressure needle head and the protective cover body on the traditional negative pressure blood sampling device are detachably connected, and sometimes the connection is not tight and is easy to loosen, so that blood pollution is caused. Accordingly, the present utility model has been made.

Disclosure of utility model

The utility model aims to provide a medical hemostix, which can avoid the problem that a negative pressure needle head and a protective cover body fall off and prevent the problem of blood pollution caused by unstable connection.

The utility model provides a medical hemostix, which comprises a catheter, wherein blood taking needles and negative pressure needles are respectively arranged at two ends of the catheter, a connecting piece is arranged at one end of the catheter, which is close to the negative pressure needles, and is connected with a protective cover, the negative pressure needles are positioned in the connecting piece, and the needle heads of the negative pressure needles penetrate through the connecting piece and extend into the protective cover.

Further, the connecting piece includes fixing base and connecting pipe, the connecting pipe with the protection casing is connected, the fixing base with catheter connection, the fixing base is inside to be equipped with the needle file of negative pressure needle, the syringe needle of negative pressure needle passes the connecting pipe stretches into in the protection casing.

Further, the connecting pipe is in threaded connection with the protective cover.

Further, a through hole is formed in the center of the bottom wall of the protective cover, an internal thread is arranged in the through hole, an external thread is arranged on the outer wall of the connecting pipe, and the internal thread is matched with the external thread.

Further, one end of the through hole, which is close to the connecting piece, is provided with an annular limiting groove, the outer wall of the connecting pipe is symmetrically provided with an elastic sheet which is obliquely arranged, and the elastic sheet is positioned in the limiting groove.

Further, one end of the through hole, which is close to the connecting piece, is provided with an annular slope surface which extends from the center of the through hole to the periphery and inclines downwards; the inclined direction of the elastic sheet is downward.

Further, the smaller diameter of the annular slope surface is larger than the inner diameter of the limit groove and smaller than the outer diameter of the limit groove.

Further, a needle seat protection sleeve is arranged at one end of the catheter, the needle seat protection sleeve wraps the needle seat of the negative pressure needle, and the needle seat protection sleeve is positioned inside the fixing seat.

Further, the catheter and the needle seat protective sleeve are of an integrated structure.

Further, the material of the conduit is transparent.

In summary, compared with the prior art, the technical scheme of the utility model has the following advantages:

According to the technical scheme, the connecting piece is arranged between the negative pressure needle and the protective cover, so that the possibility of blood pollution or repeated use caused by unstable connection between the negative pressure needle and the protective cover of the traditional hemostix is avoided; through placing the negative pressure needle inside the connecting piece, the connection stability of reinforcing negative pressure needle is difficult for breaking away from with the protection casing more. The blood collector provided by the utility model has the advantages of firm connection among all parts, simple structure, convenience in operation and low cost, can effectively improve the working efficiency of nurses, reduces the infection risk of patients, is suitable for any clinical patient needing blood collection, can be widely applied to all medical rooms, and has stronger practicability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a hemostix according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the interior of the protective cover according to the embodiment of the utility model;

FIG. 3 is a schematic illustration of the connection of a catheter to a connector according to an embodiment of the present utility model;

fig. 4 is an enlarged view of a portion of fig. 3a in accordance with the present utility model.

Reference numerals illustrate: 1-blood taking needle, 2-catheter, 3-negative pressure needle, 4-needle seat protective sleeve, 5-connecting piece, 501-fixing seat, 502-connecting pipe, 6-elastic piece, 7-protective cover, 701-through hole, 702-limit groove and 703-annular slope surface.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are 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 "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," 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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

A medical hemostix as shown in figures 1 and 2.

The blood taking needle 1 and the negative pressure needle 3 are fixedly connected to two ends of the catheter 2 respectively, the connecting piece 5 is installed at one end, close to the negative pressure needle 3, of the catheter 2, the connecting piece 5 is connected with the protective cover 7, the negative pressure needle 3 is located inside the connecting piece 5, and the needle head of the negative pressure needle 3 penetrates through the connecting piece 5 and stretches into the protective cover 7.

As shown in fig. 3 and 4, the connecting piece 5 comprises a fixing seat 501 and a connecting pipe 502, the connecting pipe 502 is connected with the protective cover 7, the fixing seat 501 is connected with the catheter 2, a needle seat of the negative pressure needle 3 is placed in the fixing seat 501, and the needle head of the negative pressure needle 3 penetrates through the connecting pipe 502 and stretches into the protective cover 7. Connecting pipe 502 and protection casing 7 threaded connection, protection casing 7 are the full open hollow cylinder of one end, and the diapire central point of protection casing 7 puts and is equipped with through-hole 701, and through-hole 701 is equipped with the internal thread, and connecting pipe 502 outer wall is equipped with the external screw thread, and internal screw thread and external screw thread cooperation for firmly fix between connecting piece 5 and the protection casing 7, avoid connecting piece 5 and protection casing 7 to break away from. In this embodiment, the fixing base 501 and the connecting tube 502 are integrally formed.

An annular limiting groove 702 is formed in one end, close to the connecting piece 5, of the through hole 701, elastic pieces 6 which are arranged in a downward inclined mode are symmetrically fixed on the outer wall of the connecting pipe 502, and the elastic pieces 6 are located in the limiting groove 702. One end of the through hole 701, which is far away from the limit groove 702, is provided with an annular slope surface 703 which extends downwards from the center of the through hole 701 to the periphery, the smaller diameter of the annular slope surface 703 is larger than the inner diameter of the limit groove 702 and is smaller than the outer diameter of the limit groove 702, and the outer diameter of the limit groove 702 is larger than the outer diameter of the external thread on the connecting pipe 502.

One end of the catheter 2 is fixed with a needle seat protection sleeve 4, the needle seat protection sleeve 4 wraps the needle seat of the negative pressure needle 3 and is tightly adhered and fixed with the needle seat of the negative pressure needle 3, the needle seat protection sleeve 4 is positioned inside the fixing seat 501, and the inner wall of the fixing seat 501 is tightly adhered with the needle seat protection sleeve 4. The bottom of the fixing seat 501 is provided with a fixing hole, and the catheter 2 penetrates out of the fixing hole to be adhered and fixed with the blood taking needle 1. The inner wall of the fixing hole is adhered and fixed with the catheter 2. The catheter 2 is made of transparent materials, and the catheter 2 and the needle seat protective sleeve 4 are of an integrated structure.

The mounting method of the hemostix in the utility model is as follows: firstly, the connecting pipe 502 on the connecting piece 5 is inserted into the through hole 701 on the bottom wall of the protective cover 7, the external thread on the connecting pipe 502 is matched with the internal thread hole of the through hole 701 in a threaded manner, the elastic piece 6 on the connecting pipe 502 is clamped in the limiting groove 702, in the process, the arranged annular slope surface 703 enables the elastic piece 6 to be pressed down, the elastic piece 6 is convenient to enter into the limiting groove 702, after the elastic piece 6 enters into the limiting groove 702, the elastic piece 6 cannot be separated from the limiting groove 702, so that the connecting piece 5 and the protective cover 7 are fixed more firmly, separation between the connecting piece 5 and the protective cover 7 is avoided, and repeated use after disassembly is avoided.

When blood collection is carried out, the needle head of the blood taking needle 1 is inserted into a vein, the needle head of the negative pressure needle 3 is inserted into a negative pressure blood taking bottle, and blood enters the negative pressure blood taking bottle through the blood taking needle 1, the catheter 2 and the negative pressure needle 3, so that blood collection is realized.

The medical hemostix provided by the utility model has novel structure, and the connecting piece is in threaded connection with the protective cover through the connecting pipe of the connecting piece, so that the connecting piece and the protective cover are firmly fixed; the connecting piece is prevented from being separated from the protective cover through the elastic piece and the limiting groove; the needle seat of the negative pressure needle is fixed in the fixing seat of the connecting piece, so that the negative pressure needle is firmly fixed, and the negative pressure needle is prevented from being separated from the protective cover. The medical hemostix provided by the utility model has the advantages that the problems of blood pollution and repeated use caused by unstable connection and easy falling of the negative pressure needle and the protective cover are avoided, the structure is simple, the manufacturing cost is low, the working efficiency of nurses can be effectively improved, the infection risk of patients is reduced, and the practicability is strong.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The utility model provides a medical hemostix, its characterized in that, includes pipe (2), the both ends of pipe (2) are equipped with blood taking needle (1) and negative pressure needle (3) respectively, pipe (2) are close to the one end of negative pressure needle (3) is equipped with connecting piece (5), connecting piece (5) are connected with protection casing (7), negative pressure needle (3) are located inside connecting piece (5), the syringe needle of negative pressure needle (3) passes connecting piece (5) stretch into in protection casing (7).

2. The medical hemostix according to claim 1, characterized in that the connecting piece (5) comprises a fixed seat (501) and a connecting pipe (502), the connecting pipe (502) is connected with the protective cover (7), the fixed seat (501) is connected with the catheter (2), a needle seat of the negative pressure needle (3) is arranged inside the fixed seat (501), and the needle head of the negative pressure needle (3) penetrates through the connecting pipe (502) and stretches into the protective cover (7).

3. The medical blood collection device according to claim 2, wherein the connection tube (502) is screwed with the shield (7).

4. A medical blood collector according to claim 3, wherein the bottom wall of the protective cover (7) is provided with a through hole (701) at the center, the through hole (701) is provided with an internal thread, the outer wall of the connecting tube (502) is provided with an external thread, and the internal thread is matched with the external thread.

5. The medical hemostix according to claim 4, characterized in that one end of the through hole (701) close to the connecting piece (5) is provided with an annular limiting groove (702), the outer wall of the connecting pipe (502) is symmetrically provided with an elastic sheet (6) which is obliquely arranged, and the elastic sheet (6) is positioned in the limiting groove (702).

6. The medical hemostix according to claim 5, characterized in that the end of the through hole (701) near the connecting piece (5) is provided with an annular slope (703) extending from the center of the through hole (701) to the periphery and sloping downwards; the inclined direction of the elastic sheet (6) is downward.

7. The medical blood collection device according to claim 6, wherein the smaller diameter of the annular ramp surface (703) is larger than the inner diameter of the limiting groove (702) and simultaneously smaller than the outer diameter of the limiting groove (702).

8. The medical hemostix according to claim 2, characterized in that a needle seat protection sleeve (4) is arranged at one end of the catheter (2), the needle seat protection sleeve (4) wraps the needle seat of the negative pressure needle (3), and the needle seat protection sleeve (4) is positioned inside the fixing seat (501).

9. The medical blood collection device according to claim 8, wherein the catheter (2) is of unitary construction with the hub protective sheath (4).

10. The medical hemostix according to claim 1, characterized in that the catheter (2) is made of transparent material.