CN210301838U

CN210301838U - Puncture liquid-pumping device

Info

Publication number: CN210301838U
Application number: CN201920350789.1U
Authority: CN
Inventors: 蔡华丽; 陈燕; 钟洁愉; 胡正明; 黎永滨; 林晓娜; 孙德胜
Original assignee: Peking University Shenzhen Hospital
Current assignee: Peking University Shenzhen Hospital
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-04-14
Anticipated expiration: 2029-03-19

Abstract

The utility model discloses a puncture drawing liquid device, including keeping somewhere needle subassembly and switching subassembly, it includes stylet and nook closing member to keep somewhere the needle subassembly, the nook closing member by the afterbody of stylet stretches into the inside of stylet, make the stylet is right the nook closing member carries out the cladding, the nook closing member portion of nook closing member by the front end of stylet stretches out, the preceding terminal surface of stylet forms into the inclined plane, the switching subassembly includes the hose, the one end of hose is connected with first joint, the other end of hose extends side by side has second connector and third joint, works as the stylet is followed after extracting in the nook closing member, the hose accessible first joint with the tail end of stylet is connected, the utility model discloses can make the resistance when the puncture littering littleer, the puncture is more convenient, also can sample simultaneously when the drainage.

Description

Puncture liquid-pumping device

Technical Field

The utility model relates to the field of medical equipment, specific saying relates to a puncture drawing liquid device.

Background

Some patients 'pleural cavity or abdominal cavity will produce hydrops because of physical function problem or injury, so, need to use the drawing liquid device to draw liquid or sample and send to examine, because this kind of treatment time is longer, the doctor needs to draw liquid or sample many times, then, in order to lighten the medical personnel's work burden and reduce the patient's agony, then need to use and keep somewhere the needle, and the needle sheath of the conventional needle that keeps somewhere is totally covered on the outer surface of the needle core, to wrap it totally, thus make it not sharp enough when puncturing, cause the puncture difficulty, deepen the patient's agony, because the front end of the needle sheath forms into the same sharp form with the needle core, then when the patient moves, the front end sharp part of its needle sheath is easy to cause the damage to the patient's internal tissue, aggravate the patient's state, on the other hand, the abdominal cavity keeps somewhere the needle tail end will appear and the syringe or the situation that the negative pressure drainage, thereby causing difficulty in drawing liquid and affecting the treatment.

Therefore, there is a need for further improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model aims to provide a puncture suction device.

In order to achieve the above object, a puncture drawing device according to an embodiment of the present invention includes an indwelling needle assembly and an adapter assembly.

The indwelling needle assembly comprises a needle sheath and a needle core, wherein the needle core extends into the needle sheath from the tail part of the needle sheath to enable the needle sheath to cover the needle core, the needle tip part of the needle core extends out from the front end of the needle sheath, and the front end surface of the needle sheath is formed into an inclined surface.

The adapter assembly comprises a hose, one end of the hose is connected with a first connector, the other end of the hose extends in parallel to form a second connector and a third connector, and when the stylet is pulled out of the needle sheath, the hose can be connected with the tail end of the needle sheath through the first connector.

In addition, according to the utility model discloses the puncture drawing liquid device of above-mentioned embodiment can also have following additional technical characterstic:

according to an embodiment of the invention, the angle formed by the front end surface of the needle sheath and the surface of the needle core is 30 ° to 45 °.

According to an embodiment of the present invention, the first connector is formed in a tapered shape with a diameter gradually reduced from one end to the other end, and the one end is connected to the hose.

According to an embodiment of the present invention, the outer wall of the first connector is formed with a plurality of circles of first protrusions along its circumference.

According to the utility model discloses an embodiment, second joint and third connector all form into the loudspeaker form that the diameter is crescent from its link to its open end.

According to an embodiment of the invention, the inner wall of the second joint is formed with a plurality of turns of second protrusions along its circumference.

According to an embodiment of the invention, the inner wall of the third joint is formed with a plurality of turns of third protrusions along its circumference.

According to an embodiment of the present invention, the hose is provided with a flow stopping clip.

According to an embodiment of the present invention, the open ends of the second joint and the third joint are provided with a sealing plug.

According to an embodiment of the present invention, the sealing plug is connected to the second joint and the third joint through a connecting rope.

According to the puncture liquid-extracting device provided by the embodiment of the utility model, the needle point part of the needle core extends out of the front end of the needle sheath, so that the resistance during puncture is convenient for puncture, the pain of a patient is relieved, and the front end surface of the needle sheath is formed into an inclined surface; the further resistance that has reduced when puncturing makes its the light convenience more of parity, and passes through switching subassembly makes it can be connected with negative pressure drainage bag or syringe etc. is convenient for carry out the drawing of liquid, and switching subassembly includes second joint and third joint, so, can sample when drawing of liquid, strengthens its convenience.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure in the embodiment of the present invention;

FIG. 2 is a plan view of an indwelling needle assembly according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 1 according to the embodiment of the present invention;

fig. 4 is an enlarged view of a portion B in fig. 1 according to an embodiment of the present invention.

Reference numerals:

an indwelling needle assembly 10;

a needle sheath 101;

a stylet 102;

a transition assembly 20;

a hose 201;

a flow stop clip 2011;

a first joint 202;

the first bump 2021;

a second joint 203;

the second protrusion 2031;

a third joint 204;

third protrusions 2041;

a sealing plug 205;

a tether 206 is attached.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to 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", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following describes in detail embodiments of the present invention with reference to the drawings.

Referring to fig. 1 to 4, a puncture drawing device according to an embodiment of the present invention includes an indwelling needle assembly 10 and an adapter assembly 20.

The indwelling needle assembly 10 includes a sheath 101 and a stylet 102, the stylet 102 extends from the tail of the sheath 101 into the sheath 101 so that the sheath 101 covers the stylet 102, the stylet 102 has a sharp portion extending from the tip of the sheath 101, and the stylet 101 has a beveled tip surface.

The adapter assembly 20 comprises a flexible tube 201, one end of the flexible tube 201 is connected with a first connector 202, the other end of the flexible tube 201 is extended with a second connector 203 and a third connector 204 in parallel, when the stylet 102 is pulled out from the needle sheath 101, the flexible tube 201 can be connected with the tail end of the needle sheath 101 through the first connector 202.

Based on the above, the stylet 102 extends from the tail of the sheath 101 into the sheath 101, so that the sheath 101 covers the stylet 102, so that the forward end of the needle sheath 101 can be fed into the body through the stylet 102, the needle tip part of the needle core 102 extends out from the front end of the needle sheath 101, so that the resistance in puncture is effectively reduced, the puncture is smoother, the front end surface of the needle sheath 101 is formed into an inclined surface, so that the puncture resistance is further reduced, the puncture is facilitated, meanwhile, the front end surface of the needle sheath 101 is formed into a circular ring shape, compared with the conventional needle sheath 101 which is the same as the needle head and a needle core 102, the front end of the needle sheath 101 of the utility model adopts a flat circular ring shape design, so that when the needle sheath 101 is detained in the body, the front end of the needle sheath 101 is prevented from stabbing the internal tissues of the body when the patient moves; the adapter assembly 20 comprises a hose 201, one end of the hose 201 is connected with a first connector 202, when the stylet 102 carries the needle sheath 101 to be inserted into a human body, the stylet 102 is taken out, the first connector 202 is connected with the tail end of the needle sheath 101, so that liquid can be conveniently drawn, the other end of the hose 201 is provided with a second connector 203 and a third connector 204 in parallel in an extending mode, and therefore when liquid is drawn, the hose can be connected with the second connector or the third connector 204 through a drainage bag or a syringe, the use is more convenient, and sampling can be simultaneously carried out in the drainage process, and the use is more convenient.

Therefore, the utility model discloses convenient to use, the puncture is light, excellent in use effect, and the security is high.

Preferably, in an embodiment of the present invention, the front end surface of the needle sheath 101 forms an angle of 30 ° to 45 ° with the surface of the needle core 102.

Therefore, the included angle formed by the front end surface of the needle sheath 101 and the surface of the needle core 102 is 30-45 degrees, so that the slope of the front end of the needle sheath 101 is smooth, the front end of the needle sheath 101 can be inserted into a human body along with the needle core 102, the convenience of puncture is effectively improved, and the pain of a patient is relieved.

Preferably, in an embodiment of the present invention, the first connector is formed in a tapered shape with a gradually decreasing diameter from one end to the other end, and the one end is connected to the hose 201.

In this way, the first connector is tapered from one end to the other end so that the trailing end interface of the needle sheath 101 is matched.

Preferably, in an embodiment of the present invention, the outer wall of the first connector is formed with a plurality of circles of the first protrusions 2021 along the circumference thereof.

Thus, by forming a plurality of circles of first protrusions 2021 on the outer wall of the first connector along the circumference thereof, it should be noted that the first protrusions 2021 are made of rubber, so that the needle sheath 101 is more stable when inserted into the rear interface thereof, and has good sealing performance, thereby preventing liquid leakage.

Preferably, in an embodiment of the present invention, the second connector 203 and the third connector are formed in a trumpet shape with a gradually increasing diameter from the connecting end to the opening end thereof.

So, because second joint 203 and third connector all form into the tubaeform that the diameter is crescent from its link to its open end, so, be convenient for more be connected with the joint of drainage bag and the joint of syringe.

Preferably, in an embodiment of the present invention, the inner wall of the second joint is formed with a plurality of circles of second protrusions 2031 along a circumference thereof.

Thus, a plurality of circles of second protrusions 2031 are formed on the inner wall of the second connector along the circumference of the inner wall, and it should be noted that the second protrusions 2031 are made of rubber, so that when the connector of the drainage bag or the connector of the syringe is inserted into the second connector, the second protrusions 2031 can make the connection more stable and have good sealing performance.

Preferably, in an embodiment of the present invention, the inner wall of the third joint 204 is formed with a plurality of circles of third protrusions 2041 along the circumference thereof.

Thus, a plurality of circles of third protrusions 2041 are formed on the inner wall of the third joint 204 along the circumference thereof, it should be noted that the third protrusions 2041 are made of rubber, so that when the joint of the drainage bag or the joint of the syringe is inserted into the third joint 204, the third protrusions 2041 can make the connection more stable and have good sealing performance.

Preferably, in an embodiment of the present invention, a flow stopping clip 2011 is disposed on the hose 201.

In this way, by providing the flow stop clip 2011 on the hose 201, the flow and the stop of the liquid in the hose 201 can be controlled by the flow stop clip 2011.

Preferably, in an embodiment of the present invention, the open ends of the second joint and the third joint 204 are provided with a sealing plug 205.

In this way, the sealing plugs 205 are arranged at the open ends of the second joint and the third joint 204, so that the ports of the second joint and the third joint 204 can be sealed, thereby avoiding the leakage of the liquid inside to cause infection, and simultaneously avoiding the external bacteria from entering the human body through the pipeline.

Preferably, in an embodiment of the present invention, both of the sealing plugs 205 are connected to the second and third joints 204 through a connecting string 206.

In this way, since the two sealing plugs 205 are connected to the second joint and the third joint 204 through a connecting rope 206, when the sealing plugs 205 are taken down, the sealing plugs can be connected through the connecting rope 206, thereby avoiding the need of additional storage after being taken down, and avoiding the occurrence of loss.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A puncture drawing device, comprising:

an indwelling needle assembly including a sheath and a stylet, the stylet extending into the sheath from a tail of the sheath to cover the stylet, a needle tip of the stylet extending from a front end of the sheath, and a front end surface of the stylet forming a bevel;

2. A puncture and aspiration device according to claim 1, wherein the angle formed by the front end surface of the sheath and the surface of the core is 30 ° to 45 °.

3. The lancing device of claim 1, wherein the first connector is tapered from one end to the other end, the one end being connected to the hose.

4. The lancing device of claim 3, wherein the outer wall of the first connector has a plurality of turns of the first protrusion formed along a circumference thereof.

5. The lancing device according to claim 1, wherein the second connector and the third connector are formed in a flared shape with a diameter gradually increasing from the connecting end to the open end.

6. The lancing device of claim 5, wherein the inner wall of the second adapter defines a plurality of turns of the second protrusion along its circumference.

7. The lancing device of claim 5, wherein the inner wall of the third adapter defines a plurality of third projections along its circumference.

8. A lancing device according to claim 1, wherein said hose is provided with a flow stop clip.

9. A puncture and aspiration device according to claim 1, wherein the open ends of the second connector and the third connector are each provided with a sealing plug.

10. A puncture and aspiration device according to claim 9, wherein both of the sealing plugs are connected to the second connector and the third connector by a connecting string.