CN212574938U - Abdominal cavity puncture needle device - Google Patents

Abstract

The invention provides an abdominal cavity puncture needle device, which relates to the field of medical instruments and comprises a tubular needle body, wherein one end of the needle body is blocked to form a conical structure, and the opening of the other end of the needle body is communicated with a joint for being in butt joint with an external structure; the small-diameter end of the conical structure is a smooth blunt end with threads, a through hole communicated with the inside of the needle body is formed in the position, close to the conical structure, of the needle body, and the through hole is communicated with the joint through the inside of the needle body; the blunt needle point is configured, and the thinner needle body is matched with the standard joint at the tail end, so that all layers of the abdominal wall can be safely punctured without damaging the abdominal viscera; the abdominal wound healing instrument has the effects of simplicity and convenience in operation, safety, reliability, high airtightness, convenience and high patient comfort, and reduces risks of abdominal internal organ injury, bleeding, infection, poor wound healing and the like.

Description

Abdominal cavity puncture needle device

Technical Field

The disclosure relates to the field of medical instruments, in particular to an abdominal cavity puncture needle device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Currently, part of ascites patients need to be subjected to peritoneal cavity puncture to release ascites for treatment clinically, wherein the proportion of cirrhosis patients is high, the incidence rate of secondary ascites of the patients is high, and multiple peritoneal cavity punctures may be required to release ascites. Some patients need ascites reinfusion even because of more protein loss, so that the whole process of releasing the ascites needs to be closed and aseptic. Ascites patients often have conditions of hypoproteinemia, obvious malnutrition, thinned abdominal wall, fragile soft tissue, easy bleeding of tiny wound, poor constitution, physical strength reduction and the like when suffering from basic diseases, and in addition, the healing capability and the anti-infection capability of the organism are poor. So the requirement for the patients to release ascites by peritoneal cavity puncture is higher.

The inventor finds that the peritoneal cavity puncture needle used clinically at present has more problems, (1) the needle point of the peritoneal cavity puncture needle is sharp and has sharp side edges, so that the puncture channel is easy to ooze blood and is slow to heal, and the infection probability is increased; (2) the sharp needle point has a large risk of damaging visceral organs in the abdominal cavity, and no matter in the puncturing process or the indwelling process of the puncture needle, the sharp needle point can cause the abdominal viscera close to the needle point to be scratched and punctured to cause damage due to the posture change or cough of a patient; (3) the leakproofness is poor, the connection between the peritoneal cavity puncture drainage needle and the drainage pipeline is poor, the connection point needs to be opened for many times, and the pollution is easily caused, so the infection risk is increased; (4) the comfort is poor: both the harsh needle irritation and the rapid fluid discharge can cause discomfort and even severe reactions to the patient. All the above disadvantages bring adverse clinical effects, and are difficult to meet the existing clinical requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defects in the prior art, and provides an abdominal cavity puncture needle device, which is provided with a round and blunt front end sealing needle point, adopts a thinner needle body to match with a standard joint at the tail end, can safely puncture the skin on the surface layer without damaging the abdominal cavity viscera, has the effects of simple and convenient operation, safety, reliability, high tightness, convenience and high comfort of patients, and reduces the risks of abdominal cavity viscera injury, bleeding, infection, poor wound healing and the like.

In order to realize the purpose, the following technical scheme is adopted:

the utility model provides an abdominal cavity puncture needle device, includes the tubulose needle body, needle body one end shutoff forms conical syringe needle, and other end opening and intercommunication have a plurality of joints, the needle body side is equipped with a plurality of oval through-holes of intercommunication needle body inside, and every through-hole all communicates through needle body inside and a plurality of joints for make the liquid in the abdominal cavity get into the needle body inside back by connecting the output from the through-hole, is equipped with the helicitic texture on the conical bus that the syringe needle corresponds, and the path end of conical syringe needle is slick and sly blunt head.

Furthermore, all the through holes are arranged in central symmetry relative to the axis of the needle body and are positioned on one side of the outer circumferential surface of the needle body, which is close to the needle head.

Furthermore, the number of the through holes is four, the through holes are divided into two groups, and the two through holes in each group are arranged oppositely.

Furthermore, one of the joints is a first joint which is coaxially butted with the needle body, one end of the first joint is butted and communicated with the needle body, and the other end of the first joint is used for matching with an external structure; the axes of the other joints and the axis of the needle body form included angles respectively.

Further, the first joint inner wall and the needle body inner wall jointly form a cavity, the cavity can be dismantled and the cooperation has the nook closing member, nook closing member one end is visited into in the needle body through first joint for seal the intercommunication of needle body and interface, the other end of nook closing member extends outside first joint, is used for receiving the exogenic action.

Furthermore, the needle core is inserted into the through hole under the action of external force and is used for being matched with the inner wall of the needle body to plug all the through holes.

Furthermore, the end of the joint far away from the needle body is of a standard interface structure, and is in butt joint with and communicated with an external structure according to requirements.

Furthermore, the large-diameter end of the needle head is in butt joint with the needle body, and the joint is in smooth transition.

Further, the thread structure is arranged along the bus surface and extends from the small-diameter end to the large-diameter end in a spiral mode.

Further, the diameter of the large-diameter end of the needle head is equal to the diameter of the needle body.

Compared with the prior art, the utility model has the advantages and positive effects that:

(1) the needle tip part of the puncture needle is of a smooth blunt structure with a closed front end, and is not a traditional sharp needle tip, so that the needle tip is not easy to damage even if contacting or scratching abdominal internal organs, the safety of abdominal soft tissues is improved, the problems of easy blood seepage and slow healing of a puncture channel are reduced, and the infection probability is reduced;

(2) the tip of the round and blunt needle tip can not scratch organs in the abdominal cavity, the round and blunt needle tip has good safety in the puncturing process or the puncture needle indwelling process, and even if the organs are close to, scratch or even impact the needle tip due to the posture change or cough of a patient, the abdominal organs are prevented from being damaged;

(3) the needle point of the conical structure is matched with the thread structure, so that normal puncture can be realized on skin with higher toughness, and the spiral structure can improve the stability in the puncture process on one hand and limit the breakthrough fast-forward action when penetrating through the abdominal wall on the other hand, so that the puncture process is stably carried out, and the damage to visceral organs in the abdomen is avoided;

(4) a plurality of output connectors are configured, and when the disposable syringe is used, the nipple, the infusion apparatus, the heparin cap, the three-way cap and the like of the syringe are selected to be tightly connected according to actual conditions, so that the sealing property is improved; when the joint positioned on the circumferential side surface of the needle body is connected with the drainage pipeline, the lever effect on the traction of the puncture needle when the drainage pipeline is connected from the tail end of the needle tail is reduced, the stability of the puncture needle in the abdominal wall is favorably maintained, and the puncture needle is not easy to incline and move in the abdominal wall;

(5) the needle body is internally detachably matched with a needle core, the through hole is plugged in the puncturing process, the blocking caused in the tissue embedding through hole in the puncturing process is avoided, the through hole is plugged after the puncturing is formed, and the liquid in the abdominal cavity is prevented from seeping out before the joint is butted with an external structure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.

Fig. 1 is a schematic view of the structure of a puncture needle in embodiment 1 of the present disclosure;

FIG. 2 is a schematic view of the engagement between the needle body and the needle core in embodiment 1 of the present disclosure;

FIG. 3 is a schematic view of a structure at a through hole in embodiment 1 of the present disclosure;

fig. 4 is a schematic cross-sectional view of a through hole corresponding to a needle body in embodiment 1 of the present disclosure.

In the figure, 1-needle body; 2-needle tip; 3-a first joint; 4-a second linker; 5-a via end; 6-through holes; 7-a needle core; 8-thread.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate that the directions of movement are consistent with those of the figures themselves, and are not limiting in structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present disclosure.

Just as introducing in the background art, the pjncture needle point among the prior art is sharp structure, and the side cutting edge of a knife or a sword is sharp, appears secondary injury to the patient easily at the puncture in-process and keep somewhere the in-process, fish tail visceral organ, and its leakproofness and travelling comfort all are difficult to satisfy current demand, to above-mentioned problem, this disclosure provides an abdominal cavity pjncture needle device.

Example 1

In an exemplary embodiment of the present disclosure, a laparoscopic needle device is provided, as shown in fig. 1-4.

The abdominal cavity puncture needle device is integrally of a needle-shaped structure, one end of the abdominal cavity puncture needle device is a needle point 2, the other end of the abdominal cavity puncture needle device is a needle tail, the middle of the abdominal cavity puncture needle device is a needle body 1, the needle point is used for puncturing the inside of an abdominal cavity, and liquid in the abdominal cavity is led out and discharged after passing through the needle body and the needle tail.

Specifically, in the embodiment, the puncture needle body is a tubular needle body 1, one end of the tubular needle body is a needle point formed by a conical structure, one end of the whole body is blocked by the needle point, and a single-cavity structure is formed in the needle body, so that the puncture needle is simple in structure and small in diameter, a wound generated during puncture is small, and a puncture hole is easy to heal after operation;

it can be understood that the puncture needle is a tubular structure with a straight axis, and the wall thickness and the inner diameter of the tubular structure can be configured as required.

The small-diameter end of the conical structure is a smooth blunt end, the position of the needle body close to the conical structure is a through hole end, a through hole 6 communicated with the inside of the needle body is arranged on the through hole end of the needle body, and the through hole is communicated with a joint through the inside of the needle body;

the end of the through hole is butted with the needle point, and one end of the needle body is blocked by the needle point.

The tip of the needle tip part of the puncture needle is round and blunt rather than sharp, so that the puncture needle is difficult to damage even if the needle tip contacts or scratches abdominal internal organs; the safety of the soft tissues in the abdomen is improved, the problems of easy blood seepage and slow healing of a puncture channel are reduced, and the infection probability is reduced;

in the actual operation process, the tip of the round and blunt structure can not scratch visceral organs in the abdominal cavity, the round and blunt needle tip has good safety no matter in the puncturing process or the puncture needle indwelling process, and even if the visceral organs are close to or impact the needle tip due to the posture change or cough of a patient, the round and blunt part of the needle tip can not easily damage the visceral organs.

Furthermore, the axis of the conical structure is collinear with the axis of the needle body, a thread 8 structure is arranged on the generatrix surface of the conical structure, and the thread structure extends along the axis of the conical structure, so that a needle point is formed;

in the actual operation process, whether the skin is directly punctured is determined according to the situation when the skin is punctured, the local skin can be generally tightened for direct puncturing, and the puncture needle is kept to rotate clockwise under certain thrust to puncture the abdominal wall layer by layer;

if the patient with tougher skin needs to directly puncture the skin, the skin on the surface layer can be punctured by a small-size ordinary syringe needle head, and then the puncture needle can stably penetrate through all layers of the abdominal wall under the action of a thread structure when rotating clockwise under certain thrust, so that the generation of breakthrough fast-forward action when penetrating through the abdominal wall can be effectively avoided, and the injury of visceral organs in the abdomen can be avoided;

when the puncture needle is pulled out after the operation is finished, the puncture needle is rotated in the anticlockwise direction under a certain pulling force on the needle tail, and the puncture needle is pulled out.

Of course, it is understood that the clockwise direction and the counterclockwise direction are relative to the forward rotation and the backward rotation of the screw structure, and the rotating direction of the operating force is selected according to the rotation direction of the screw structure to realize the insertion and extraction.

Furthermore, the through holes are four oval through holes, are uniformly arranged along the circumferential direction of the outer wall of the through hole end and are communicated with the inside of the needle body;

in this embodiment, four through-holes set up one every 90 at intervals along body circumference to form four through-holes and be the structure of central symmetry arrangement around the body axis, a plurality of through-holes can avoid the through-hole to be applied by the internal organs in the abdominal cavity and block up, thereby guarantee the smoothness nature of pjncture needle drainage in-process.

Further, the joint comprises a first joint 3 and a second joint 4, the axes of the first joint and the second joint are in vertical butt joint communication, the first joint is in coaxial butt joint communication with the open end of the needle body, the second joint is arranged on the side wall of the first joint, and the first joint and the second joint are both communicated with the inside of the needle body;

the needle tail of the puncture needle is two standard interfaces which are communicated and mutually vertical, and can be tightly connected with a syringe nipple, an infusion apparatus, a heparin cap, a three-way cap and the like; the use can be selected according to actual conditions.

In addition, when the drainage tube is connected with the drainage tube pipeline through the side hole interface, the lever effect on the pulling of the puncture needle when the drainage tube is connected from the tail end of the needle tail is reduced, the stability of the puncture needle in the abdominal wall is favorably maintained, and the puncture needle is not easy to incline and move in the abdominal wall.

Furthermore, a needle core 7 is detachably matched in the needle body, one end of the needle core stretches into the through hole end and is used for being matched with the inner wall of the needle body to plug the through hole, and the other end of the needle core extends out of the interface and is used for receiving the action of external force;

the needle body is internally detachably matched with a needle core, the through hole is plugged in the puncturing process, the blocking caused in the tissue embedding through hole in the puncturing process is avoided, the through hole is plugged after the puncturing is formed, and the liquid in the abdominal cavity is prevented from seeping out before the joint is butted with an external structure.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims (10)

1. The utility model provides an abdominal cavity pjncture needle device, a serial communication port, including the tubulose needle body, needle body one end shutoff forms conical syringe needle, and other end opening and intercommunication have a plurality of joints, the needle body side is equipped with a plurality of oval through-holes of the inside of intercommunication needle body, and every through-hole all communicates through the inside and a plurality of joints of needle body for make the liquid in the abdominal cavity get into the needle body by the joint output after inside from the through-hole, be equipped with helicitic texture on the conical generatrix face that the syringe needle corresponds, and the path end of conical syringe needle is slick and sly.

2. The laparoscopic needle assembly of claim 1, wherein all of said throughbores are arranged concentrically with respect to the axis of said needle body and are located on the outer circumferential surface of said needle body on the side thereof adjacent said needle tip.

3. The laparoscopic needle assembly of claim 2, wherein said through holes are four in number and are divided into two groups, the two through holes of each group being disposed opposite each other.

4. The laparoscopic needle assembly of claim 1, wherein one of said plurality of connectors is a first connector, said first connector being coaxially aligned with said needle body, said first connector having one end in abutting communication with said needle body and another end for engaging an external structure; the axes of the other joints and the axis of the needle body form included angles respectively.

5. The laparoscopic needle device of claim 4, wherein said first connector inner wall and said needle body inner wall together form a cavity, said cavity is detachably engaged with a needle core, one end of said needle core is inserted into said needle body through said first connector for closing the communication between said needle body and said hub, and the other end of said needle core extends out of said first connector for receiving an external force.

6. The laparoscopic needle device of claim 5, wherein said core is adapted to be inserted into said through-holes under the influence of an external force for cooperating with the inner wall of said needle body to block all of said through-holes.

7. The laparoscopic needle device of claim 6, wherein said connector is adapted to be connected to an external structure by docking with a standard port at the end distal to the needle body.

8. The laparoscopic needle assembly of claim 1, wherein said large diameter end of said needle is butted against said needle body with a smooth transition at the junction.

9. The laparoscopic needle assembly of claim 8, wherein said threaded structure is disposed along a generatrix extending helically from a small diameter end to a large diameter end.

10. The laparoscopic needle assembly of claim 9, wherein said large diameter end of said needle has a diameter equal to the diameter of said needle body.

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