CN217162767U - Remaining needle - Google Patents

Abstract

The utility model provides an indwelling needle, relating to the technical field of medical instruments. An indwelling needle comprises a mounting seat, wherein a first infusion channel is arranged in the mounting seat, and the mounting seat is provided with a sleeve communicated with the first infusion channel; a first diaphragm used for dividing the first transfusion channel into two parts is arranged in the first transfusion channel, and the first diaphragm is fixed on the mounting seat; the sleeve is internally provided with a second diaphragm which is used for dividing the interior of the sleeve into two parts, the second diaphragm is fixed on the sleeve, and the second diaphragm is connected with the first diaphragm. Adopt the utility model discloses, it can be with two kinds of liquid medicines independently input human blood vessel in, prevented that two kinds of liquid medicines from getting into blood vessel and mix before, need not puncture in addition and infuse, reduced patient's misery, reduced medical personnel's working strength.

Description

an indwelling needle

technical field

The utility model relates to the technical field of medical devices, in particular to an indwelling needle.

Background technique

Indwelling needles are also called trocars, and their core components include a flexible catheter/cannula that can be indwelled in the blood vessel and a stainless steel puncture guide needle core. When in use, the catheter and the needle core are punctured into the blood vessel together. When the catheter is fully inserted into the blood vessel, the needle core is withdrawn, and only the soft catheter is left in the blood vessel for infusion therapy. Indwelling needles are divided into open type and closed type, open type is divided into ordinary type and safety type (needle stick prevention type), and closed type is divided into ordinary type and safety type (needle stick prevention type).

The indwelling needle is easy to puncture, and the related puncture techniques are easy to learn to protect the patient's blood vessels, reduce the patient's pain, feel comfortable, improve the patient's satisfaction and the quality of care There are many different structural products to choose from, and there are different lengths of catheters to choose from to improve nurses' work efficiency and rational drug use , to avoid multiple intermittent infusions per day, reduce puncture without medication on time, avoid reactions between drugs, reduce costs, and reduce the cost of exudation treatment caused by scalp needle puncture.

Although the existing indwelling needle can simultaneously input two medicinal liquids into the human body, since the existing indwelling needle has only one infusion pipeline, when the two medicinal liquids are input simultaneously, the two medicinal liquids will be mixed in the infusion pipeline. For some special drugs, such as in cardiology, many vasoactive drugs, heart failure drugs, etc., need to be injected into the blood vessels of the human body alone, and cannot be mixed with other liquid medicines into the human body. Indwelling needles are not suitable, and additional puncture is required for infusion, which not only increases pain for patients, but also increases the work intensity of medical staff.

Utility model content

The purpose of the present utility model is to provide an indwelling needle, which can independently inject two medicinal liquids into the blood vessels of the human body, prevents the two medicinal liquids from mixing before entering the blood vessels, does not require additional puncture for infusion, reduces the pain of patients, and reduces the the workload of medical staff.

The embodiment of the present utility model is realized in this way:

The embodiment of the present application provides an indwelling needle, which includes a mounting seat, a first infusion channel is arranged in the mounting seat, and a sleeve connected to the first infusion channel is arranged in the mounting seat; The channel is divided into two parts of the first diaphragm, and the first diaphragm is fixed on the mounting seat; the sleeve is provided with a second diaphragm for dividing the inside of the sleeve into two parts, the second diaphragm is fixed on the sleeve, and the second diaphragm is connected to the first diaphragm. Diaphragm connection.

Further, in some embodiments of the present invention, the above also includes a needle seat and a needle core disposed on the needle seat, the mounting seat is provided with a sliding hole communicating with the sleeve, and the needle core passes through the sliding hole and the sleeve in sequence.

Further, in some embodiments of the present invention, the above-mentioned mounting seat is provided with a rubber plug for sealing the sliding hole, and the needle core passes through the rubber plug.

Further, in some embodiments of the present invention, the above-mentioned needle seat is provided with an external thread, the mounting seat is provided with a screw hole, and the needle seat is threadedly connected with the mounting seat.

Further, in some embodiments of the present utility model, the above-mentioned also includes an infusion pipeline and a connector, one end of the infusion pipeline is arranged on the mounting seat and communicated with the first infusion channel, and the other end of the infusion pipeline is arranged on the connector;

The infusion pipeline is provided with a third diaphragm for dividing the inside of the infusion pipeline into two parts: the first channel and the second channel, the third diaphragm is fixed on the infusion pipeline, one end of the third diaphragm is connected with the first diaphragm, and the other side of the third diaphragm is connected to the first diaphragm. One end is connected with the connector;

The connector is provided with a second infusion channel that communicates with the first channel of the infusion pipeline and a third infusion channel that communicates with the second channel of the infusion pipeline.

Further, in some embodiments of the present invention, the first diaphragm, the second diaphragm and the third diaphragm are all elastic films.

Further, in some embodiments of the present invention, the above-mentioned infusion pipeline activity is provided with a flow stop component for blocking the infusion pipeline.

Further, in some embodiments of the present invention, the above-mentioned flow stop assembly includes a rotating shaft, a pulley fixed on the rotating shaft, and a sliding sleeve slidably sleeved on the outside of the infusion pipeline, the sliding sleeve is provided with a groove, and the sliding sleeve is along the groove. Both sides are provided with inclined chute; both ends of the rotating shaft are slidably embedded in the chute, and the pulley is in contact with the infusion pipeline.

Further, in some embodiments of the present invention, the outer side wall of the pulley is provided with a plurality of anti-skid protruding teeth along its circumferential direction.

Further, in some embodiments of the present invention, the above-mentioned mounting seat is provided with a handle.

Compared with the prior art, the embodiments of the present utility model at least have the following advantages or beneficial effects:

The embodiment of the present utility model provides an indwelling needle, which includes a mounting seat, a first infusion channel is arranged in the mounting seat, and a sleeve connected to the first infusion channel is arranged in the mounting seat; The infusion channel is divided into two parts of the first diaphragm, the first diaphragm is fixed on the mounting seat; the sleeve is provided with a second diaphragm for dividing the inside of the sleeve into two parts, the second diaphragm is fixed on the sleeve, and the second diaphragm is connected to the second diaphragm. A diaphragm connection.

It can independently input the two medicinal liquids into the blood vessels of the human body, prevents the two medicinal liquids from mixing before entering the blood vessels, and does not need additional puncture for infusion, which reduces the pain of patients and reduces the work intensity of medical staff.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

1 is a front view of an indwelling needle provided by an embodiment of the present utility model;

2 is a partial cross-sectional view of a mounting seat position provided by an embodiment of the present invention;

Fig. 3 is the enlarged view of A place in Fig. 2;

Fig. 4 is the partial cross-sectional view of removing needle seat and needle core in Fig. 2;

5 is a partial cross-sectional view of a connector provided by an embodiment of the present invention;

6 is a partial cross-sectional view of an infusion pipeline along the axial direction provided by an embodiment of the present utility model;

7 is a cross-sectional view of the infusion pipeline provided by the embodiment of the present utility model along the radial direction;

8 is a top view of a flow stop assembly provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a flow stop assembly provided by an embodiment of the present invention.

Icon: 1-Mounting seat; 2-First infusion channel; 3-Cannula; 4-First diaphragm; 5-Second diaphragm; 6-Needle seat; 7-Needle core; 8-Sliding hole; 9-Rubber stopper ;10-screw hole;11-infusion pipeline;12-connecting head;13-third diaphragm;14-second infusion channel;15-third infusion channel;16-handle;17-sliding sleeve;18-groove; 19-chute; 20-pulley; 21-shaft.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside" appear The orientation or positional relationship indicated by , "outside" etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in use, only for the convenience of describing the present utility model and simplifying the It is described, rather than indicated or implied, that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, where the terms "first", "second" and the like appear, they are only used to differentiate the description, and should not be construed as indicating or implying relative importance.

Furthermore, the presence of the terms "horizontal", "vertical" etc. does not imply that the component is required to be absolutely horizontal or vertical, but may be slightly inclined. For example, "horizontal" simply means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the embodiments of the present invention, "a plurality of" means at least two.

In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a Removable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example

Referring to FIGS. 1 to 9 , the present embodiment provides an indwelling needle, comprising a mounting seat 1 , a first infusion channel 2 is provided in the mounting seat 1 , and a sleeve 3 communicated with the first infusion channel 2 is provided in the mounting seat 1 The first infusion channel 2 is provided with a first diaphragm 4 that is used to separate the first infusion channel 2 into two parts, and the first diaphragm 4 is fixed on the mounting seat 1; Two parts of the second diaphragm 5 , the second diaphragm 5 is fixed to the sleeve 3 , and the second diaphragm 5 is connected to the first diaphragm 4 .

In actual use, the cannula 3 is inserted into the blood vessel of the patient, and the first infusion channel 2 of the mounting seat 1 can input two kinds of medicinal liquids. Since the first diaphragm 4 divides the first infusion channel 2 into two parts, the second diaphragm 5 will The inside of the sleeve 3 is divided into two parts, such that one medicinal liquid enters one side of the first diaphragm 4 in the first infusion channel 2, and the other medicinal liquid enters the other side of the first diaphragm 4 in the first infusion channel 2, In this way, the two medicinal liquids enter the casing 3 respectively, and the two medicinal liquids are separated by the first diaphragm 4 and the second diaphragm 5, which prevents the two medicinal liquids from being mixed before entering the human body, and can independently input the two medicinal liquids into the human body. There is no need for additional puncture in the blood vessels for infusion, which reduces the pain of the patient and reduces the work intensity of the medical staff.

As shown in FIGS. 1-9 , in some embodiments of the present invention, the above-mentioned also includes a needle seat 6 and a needle core 7 arranged on the needle seat 6 , and the mounting seat 1 is provided with a sliding hole 8 that communicates with the sleeve 3 . , the needle core 7 passes through the sliding hole 8 and the cannula 3 in sequence. The above-mentioned mounting base 1 is provided with a rubber plug 9 for sealing the sliding hole 8 , and the needle core 7 passes through the rubber plug 9 .

In the present invention, the needle core 7 is provided, so that when in use, the medical staff can hold the needle seat 6, pass the needle core 7 through the sliding hole 8, the rubber stopper 9 and the cannula 3, and then puncture the patient's blood vessel through the needle core 7 In this way, it is convenient to drive the cannula 3 into the blood vessel through the needle core 7, and then the cannula 3 can be pressed, and the needle seat 6 and the needle core 7 can be pulled out. 3 installation. By arranging the rubber plug 9 , the sliding hole 8 can be sealed by the rubber plug 9 to prevent the leakage of the medicinal liquid from the sliding hole 8 .

Optionally, the rubber stopper 9 in this embodiment can be made of rubber material, so that the needle core 7 can pass through the rubber stopper 9 easily, and after the needle core 7 is pulled out, the rubber stopper 9 can remove it under the action of its own elastic deformation. The puncture hole is sealed to prevent liquid leakage.

As shown in FIGS. 1-9 , in some embodiments of the present invention, the above-mentioned needle seat 6 is provided with an external thread, the mounting seat 1 is provided with a screw hole 10 , and the needle seat 6 is threadedly connected with the mounting seat 1 .

In the present invention, the needle seat 6 is threadedly connected with the mounting seat 1, so that the needle seat 6 is easily fixed to the mounting seat 1 before puncturing, which prevents the needle core 7 and the sleeve 3 from sliding each other and improves the stability of the puncture. After the puncture is completed, the needle seat 6 can be unscrewed, and then the needle core 7 can be pulled out.

As shown in Figures 1-9, in some embodiments of the present invention, the above-mentioned also includes an infusion pipeline 11 and a connector 12. One end of the infusion pipeline 11 is set on the mounting seat 1 and communicated with the first infusion channel 2. The other end of the pipe 11 is arranged on the connecting head 12;

The infusion pipeline 11 is provided with a third diaphragm 13 for dividing the interior of the infusion pipeline 11 into a first channel and a second channel. The third diaphragm 13 is fixed to the infusion pipeline 11. connected, the other end of the third diaphragm 13 is connected with the connector 12;

The connector 12 is provided with a second infusion channel 14 that communicates with the first channel of the infusion pipeline 11 and a third infusion channel 15 that communicates with the second channel of the infusion pipeline 11 .

The above-mentioned first diaphragm 4, second diaphragm 5 and third diaphragm 13 are all elastic films.

Such a medicinal solution can enter the first channel of the infusion pipeline 11 through the second infusion channel 14 of the connector 12, and another medicinal solution can enter the second channel of the infusion pipeline 11 through the third infusion channel 15 of the connector 12, The two medicinal liquids are separated by the third diaphragm 13 , and then the two medicinal liquids can enter the first infusion channel 2 through the infusion pipeline 11 respectively. The connecting head 12 can adopt the common structure of the existing indwelling needle. The shape of the connecting head 12 is a Y-shape. The end of the connecting head 12 provided with the second infusion channel 14 can be provided with a heparin cap, and the end provided with the third infusion channel 15 can be provided with a conical joint. protective cap. Or the end provided with the second infusion channel 14 and the end provided with the third infusion channel 15 can be made of rubber material, and can be inserted into the connector 12 through the infusion needle during use, so that the medicinal liquid enters the second infusion through the infusion needle. in channel 14 or in the third infusion channel 15 .

Moreover, since the first diaphragm 4, the second diaphragm 5 and the third diaphragm 13 are all elastic membranes, when a medicinal liquid is used for input, under the action of the medicinal liquid pressure, the medicinal liquid can squeeze the elastic membrane, and the first The diaphragm 4 is squeezed to make the first diaphragm 4 abut against the inner wall of the first infusion channel 2, the second diaphragm 5 is squeezed to make the second diaphragm 5 abut the inner wall of the sleeve 3, and the third diaphragm 13 is squeezed and made to abut the inner wall of the casing 3. The third diaphragm 13 is in contact with the inner wall of the infusion pipeline 11 , so that the cross-sectional area of the transportation of a single medicinal solution can be enlarged, which facilitates the transportation of the medicinal solution. As shown in FIG. 2, before inserting the needle core 7, a medicinal liquid can be input in the first infusion channel 2 in advance to exhaust the air in the first infusion channel 2 and the cannula 3. At this time, when the medicinal liquid is squeezed Depressing can make the first diaphragm 4 abut against the inner wall of the first infusion channel 2 , and the second diaphragm 5 abut against the inner wall of the cannula 3 , so that the needle core 7 is easily inserted into the cannula 3 .

Optionally, the first diaphragm 4 , the second diaphragm 5 and the third diaphragm 13 in this embodiment can all be made of rubber films. As shown in FIG. 7 , the width of the third diaphragm 13 can be larger than the diameter of the infusion pipeline 11 . When the third diaphragm 13 is squeezed by the medicinal liquid, the third diaphragm 13 is easily moved to one side and abuts against the inner wall of the infusion pipeline 11 . Similarly, the structures and principles of the first diaphragm 4 and the second diaphragm 5 are the same as the third diaphragm 13 .

As shown in FIGS. 1-9 , in some embodiments of the present invention, the above-mentioned infusion pipeline 11 is movably provided with a flow stop component for blocking the infusion pipeline 11 . The above-mentioned flow stop assembly includes a rotating shaft 21, a pulley 20 fixed on the rotating shaft 21, and a sliding sleeve 17 that is slidably sleeved on the outside of the infusion pipeline 11. The sliding sleeve 17 is provided with a groove 18, and the sliding sleeve 17 is provided along both sides of the groove 18. There is an inclined chute 19 ; both ends of the rotating shaft 21 are slidably embedded in the chute 19 , and the pulley 20 is in contact with the infusion pipeline 11 .

In this way, when the infusion pipeline 11 needs to be blocked, the pulley 20 can be pressed and rotated with the fingers. At this time, the pulley 20 moves along the infusion pipeline 11. Since the chute 19 is inclined, as shown in FIG. 9, the pulley 20 is slid upward. The moving pulley 20 gradually moves downward and squeezes the infusion pipeline 11 , which can block the infusion pipeline 11 , and the operation is convenient.

As shown in FIGS. 1-9 , in some embodiments of the present invention, the outer side wall of the pulley 20 is provided with a plurality of anti-skid protruding teeth along the circumferential direction thereof.

The utility model can prevent the sliding pulley 20 of the medical staff's fingers from sliding relative to the outer side wall of the pulley 20 by setting the anti-slip protruding teeth.

As shown in FIGS. 1-9 , in some embodiments of the present invention, the above-mentioned mounting base 1 is provided with a handle 16 .

To sum up, the embodiment of the present invention provides an indwelling needle, comprising a mounting seat 1, a first infusion channel 2 is provided in the mounting seat 1, and a sleeve 3 communicating with the first infusion channel 2 is provided in the mounting seat 1; An infusion channel 2 is provided with a first diaphragm 4 for dividing the first infusion channel 2 into two parts, and the first diaphragm 4 is fixed on the mounting seat 1; the sleeve 3 is provided with a first diaphragm 4 for dividing the inside of the sleeve 3 into two parts The second diaphragm 5 is fixed to the casing 3 , and the second diaphragm 5 is connected to the first diaphragm 4 .

In actual use, the cannula 3 is inserted into the blood vessel of the patient, and the first infusion channel 2 of the mounting seat 1 can input two kinds of medicinal liquids. Since the first diaphragm 4 divides the first infusion channel 2 into two parts, the second diaphragm 5 will The inside of the sleeve 3 is divided into two parts, such that one medicinal liquid enters one side of the first diaphragm 4 in the first infusion channel 2, and the other medicinal liquid enters the other side of the first diaphragm 4 in the first infusion channel 2, In this way, the two medicinal liquids enter the casing 3 respectively, and the two medicinal liquids are separated by the first diaphragm 4 and the second diaphragm 5, which prevents the two medicinal liquids from being mixed before entering the human body, and can independently input the two medicinal liquids into the human body. There is no need for additional puncture in the blood vessels for infusion, which reduces the pain of the patient and reduces the work intensity of the medical staff.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and does not deviate from the spirit of the present application or In the case of the basic features, the present application can be implemented in other specific forms.

Accordingly, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the application is to be defined by the appended claims rather than the foregoing description, which is therefore intended to fall within the scope of the claims. All changes that come within the meaning and scope of equivalents to are included in this application. Any reference signs in the claims shall not be construed as limiting the involved claim. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. An indwelling needle, comprising: the infusion device comprises a mounting seat, wherein a first infusion channel is arranged in the mounting seat, and a sleeve communicated with the first infusion channel is arranged on the mounting seat; a first diaphragm used for dividing the first liquid conveying channel into two parts is arranged in the first liquid conveying channel, and the first diaphragm is fixed on the mounting seat; the sleeve is internally provided with a second diaphragm which is used for dividing the interior of the sleeve into two parts, the second diaphragm is fixed on the sleeve, and the second diaphragm is connected with the first diaphragm.

2. An indwelling needle as claimed in claim 1, in which: still include the needle file with locate the nook closing member of needle file, the mount pad be equipped with the slide opening of sleeve pipe intercommunication, the nook closing member passes in proper order the slide opening with the sleeve pipe.

3. An indwelling needle according to claim 2, wherein: the mounting seat is provided with a rubber plug used for sealing the sliding hole, and the needle core penetrates through the rubber plug.

4. An indwelling needle according to claim 2, wherein: the needle file is equipped with the external screw thread, the mount pad is equipped with the screw, the needle file with mount pad threaded connection.

5. An indwelling needle as claimed in claim 1, in which: the infusion set further comprises an infusion pipeline and a connector, one end of the infusion pipeline is arranged on the mounting seat and communicated with the first infusion channel, and the other end of the infusion pipeline is arranged on the connector;

a third diaphragm used for dividing the interior of the infusion pipeline into a first channel and a second channel is arranged in the infusion pipeline, the third diaphragm is fixed on the infusion pipeline, one end of the third diaphragm is connected with the first diaphragm, and the other end of the third diaphragm is connected with the connector;

the connector is provided with a second transfusion channel communicated with the first channel of the transfusion pipeline and a third transfusion channel communicated with the second channel of the transfusion pipeline.

6. An indwelling needle according to claim 5, wherein: the first diaphragm, the second diaphragm, and the third diaphragm are all elastic films.

7. An indwelling needle according to claim 5, wherein: the infusion pipeline is movably provided with a flow stopping assembly used for blocking the infusion pipeline.

8. An indwelling needle according to claim 7, wherein: the flow stopping assembly comprises a rotating shaft, a pulley fixedly arranged on the rotating shaft and a sliding sleeve sleeved outside the infusion pipeline in a sliding manner, the sliding sleeve is provided with a groove, and inclined sliding grooves are formed in the sliding sleeve along two sides of the groove; the both ends of pivot all slide the embedding the spout, the pulley with infusion pipeline butt.

9. An indwelling needle according to claim 8, wherein: the outer side wall of the pulley is provided with a plurality of anti-skidding convex teeth along the circumferential direction of the outer side wall of the pulley.

10. An indwelling needle as claimed in claim 1, in which: the mounting seat is provided with a handle.

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