CN111388065B - Abdominal cavity puncture needle device - Google Patents
Abdominal cavity puncture needle device Download PDFInfo
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- CN111388065B CN111388065B CN202010235825.7A CN202010235825A CN111388065B CN 111388065 B CN111388065 B CN 111388065B CN 202010235825 A CN202010235825 A CN 202010235825A CN 111388065 B CN111388065 B CN 111388065B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
- A61B2017/3456—Details of tips blunt
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
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 fixing part in the device can effectively keep the stable state of the puncture needle in the abdominal wall; 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
Technical Field
The disclosure relates to the field of medical equipment, 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 constitute prior art.
At present, part of ascites patients need to be subjected to peritoneal 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 the patients possibly need to be subjected to multiple times of peritoneal puncture 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 wounds, poor physical quality, physical strength reduction and the like when suffering from basic diseases, and in addition, the healing capacity and the anti-infection capacity of the body 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 edge, so that the puncture channel is easy to bleed and 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 a 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) poor stability: the puncture needle is lack of effective and reliable fixation, and the puncture needle is easy to incline, shift in depth and even separate due to the fact that the puncture needle is laterally pulled by factors such as a needle tail connecting tube and the like; (5) poor comfort: 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.
Disclosure of Invention
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:
an abdominal cavity puncture needle device 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, 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.
Furthermore, the axis of the conical structure is collinear with the axis of the needle body, a threaded structure is arranged on the generatrix surface of the conical structure, and the threaded structure extends along the axis of the conical structure, so that the needle point is formed.
Further, the through hole penetrates through the side wall of the needle body, and the through hole is used for communicating the inside and the outside of the needle body.
Further, the through-hole is oval through-hole, is equipped with four, evenly arranges along needle body circumference, and all communicates the needle body inside.
Further, the joint comprises a first joint and a second joint, 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.
Furthermore, a needle core is detachably matched in the needle body, one end of the needle core stretches into one end of the needle body corresponding to the through hole and is used for matching 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 connector and is used for receiving the action of external force.
Furthermore, the tail ends of the first joint and the second joint are standard joint structures and are in butt joint with an external structure according to requirements.
Furthermore, the needle body is detachably matched with a base in the outer portion, the base comprises a chassis and a dike post which are in coaxial butt joint, a middle hole penetrating through the chassis and the dike post along the axis is formed in the base, and the middle hole is in coaxial fit with the needle body to form stable clamping on the needle body.
Furthermore, the base is provided with side seams distributed in the radial direction, the side seams are distributed along one diameter of the dyke column to penetrate through the dyke column and the chassis and extend to the edge of the chassis from one end.
Furthermore, one side of the base plate, which is far away from the dike post, is provided with a sticking piece, and the sticking piece is used for being attached to a fixed base matched with the external structure.
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) Two output connectors which are vertical to each other are configured, when in use, the nipple, the infusion apparatus, the heparin cap, the three-way cap and the like of the injector are selected to be tightly connected according to actual conditions, so that the sealing property is improved; when the second joint on the side surface is used for connecting the drainage pipeline, the leverage effect on the puncture needle caused by traction 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 maintained, and the puncture needle is not easy to incline and move in the abdominal wall;
(5) The puncture needle is matched with a base structure, and a side seam structure on the base structure is utilized, so that when the needle is inserted deeply to cause the external length of the needle body to be insufficient, a transverse T-shaped interface at the tail section of the puncture needle is clamped in along the side seam direction, the depth length is further prolonged, and the requirement is met;
(6) The needle body is internally detachably matched with a needle core, the through hole is blocked in the puncture process, the blockage caused by embedding tissues into the through hole in the puncture process is avoided, the through hole is blocked after the puncture 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 pin body in embodiment 1 of the present disclosure;
fig. 5 is a schematic view of the overall structure of the base in embodiment 1 of the present disclosure;
FIG. 6 is a schematic view of the distribution of side seams on the base in example 1 of the present disclosure;
fig. 7 is a schematic view of the arrangement of the adhesive sheet on the chassis according to embodiment 1 of the disclosure;
fig. 8 is a schematic view of the engagement between the puncture needle and the base 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; 9-a chassis; 10-dyke columns; 11-sticky patches; 12-mesopores; 13-side seam.
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 "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 introduced 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 internal organs, and its leakproofness, stability 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. 1-8.
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, a needle body 1 is arranged in the middle of the abdominal cavity puncture needle device, 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 part 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 direct puncture is performed or not is determined according to the situation when the skin puncture is started, the local skin can be generally tightened for direct puncture, 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 counterclockwise 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 end of the through hole, and are communicated with the inside of the needle body;
in this embodiment, four through-holes set up one along every 90 intervals of body circumference to form four through-holes and be central symmetrical arrangement's structure around the body axis, a plurality of through-holes can avoid the through-hole to be covered up by the subsides of abdominal cavity internal organs, 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 leverage generated by the traction of the drainage tube pipeline 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.
In the process of retaining a patient on the puncture needle, in order to avoid excessive inclined movement and depth movement of the puncture needle, the puncture needle is further matched with a base structure and used for being attached to the periphery of a puncture position, and the puncture needle is assisted to be stabilized.
The stable base is composed of two parts, namely a chassis 9 and a dike post 10, and is made of soft organic materials, and the outer part of the needle body is detachably matched with the base;
the chassis is disc-shaped, and three circular adhesive patches 11 which are distributed in equal radian are arranged on the bottom surface (the surface in contact with the abdominal skin) close to the edge and can be adhered to the surface of the skin to fix the chassis so as to fix the base;
the base is provided with a center hole 12 which penetrates through the base and the dyke pillar along the axis, and the center hole is coaxially matched with the needle body and can accommodate and elastically clamp and fix the puncture needle;
the base is provided with side seams 13 which are distributed in the radial direction, the side seams penetrate through the dyke column and the chassis along one diameter of the dyke column, extend to the edge of the chassis from one end and penetrate through the large part of the chassis and the whole dyke column.
The stabilizing base is used when the puncture needle is successfully punctured and the drainage pipeline is connected. The position of the puncture needle is kept still, the side seam is opened to clamp the puncture needle to the middle hole position, and for the patient with the deep needle insertion and the insufficient length outside the needle body, the transverse T-shaped interface at the tail section of the puncture needle can be clamped along the side seam direction;
after the position is adjusted, the base is stuck and fixed with the skin through the sticking sheet on the bottom surface, and then the adhesive tape is tightly wound around the dike post to fix the puncture needle at the center.
The puncture needle is matched with the base structure, so that the puncture needle can be conveniently stabilized, and the puncture needle is prevented from excessively swinging; and by utilizing the side seam structure on the base structure, the length of the needle body outside the body can be made to be insufficient when the needle is inserted deeply, the connector of which the tail section of the puncture needle is in a transverse T shape is clamped in along the side seam direction, the depth length is further prolonged, and the requirement is met.
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 (5)
1. An abdominal cavity puncture needle device is characterized by comprising 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, a through hole communicated with the interior of the needle body is formed in the position, close to the conical structure, of the needle body, the through hole is located on the side wall of the needle body to form a side hole, and the through hole is communicated with the joint through the interior of the needle body;
the axis of the conical structure is collinear with the axis of the needle body, a threaded structure is arranged on the generatrix surface of the conical structure, and the threaded structure extends along the axis of the conical structure, so that a needle point is formed; the thread structure can improve the stability in the puncture process, limit the breakthrough fast-forward action when penetrating through the abdominal wall, and ensure that the puncture process is carried out stably, thereby avoiding damaging the abdominal viscera in the puncture process; the non-sharp needle tip can effectively prevent the puncture needle from scratching the visceral organs in the abdominal cavity when the puncture needle is placed in the body for liquid drainage;
the connector is positioned at the tail section of the puncture needle and comprises a first connector and a second connector, the axes of the first connector and the second connector are in butt joint and are communicated with each other vertically, the first connector is in coaxial butt joint and communication with the opening end of the needle body, the second connector is arranged on the side wall of the first connector, and the first connector and the second connector are both communicated with the inside of the needle body; when the second joint is used for connecting the drainage pipeline, the lever effect on the lateral traction of the puncture needle when the drainage pipeline is connected from the tail end of the needle tail is reduced;
a detachable needle core is matched in the needle body, one end of the needle core is inserted into one end of the needle body corresponding to the through hole and is used for being matched with the inner wall of the needle body to block 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 detachable base is matched with the outside of the needle body, the base comprises a chassis and a dike post which are coaxially butted, a middle hole which penetrates through the chassis and the dike post along the axis is arranged on the base, and the middle hole is coaxially matched with the needle body to form stable clamping on the needle body; the base is provided with side seams which are distributed in the radial direction, the side seams penetrate through the dike post and the chassis along one radius of the dike post and extend from one end to the edge of the chassis; the base is made of a relatively soft organic material; for the patient with the deep needle insertion and the insufficient length of the needle body outside the body, the T-shaped end of the puncture needle can be inserted into the T-shaped port along the side seam direction.
2. The laparoscopic needle assembly of claim 1, wherein said throughbore extends through the sidewall of the needle body, said throughbore providing communication between the interior and exterior of the needle body.
3. The laparoscopic needle device of claim 2, wherein said through-holes are oval shaped, four in number, evenly spaced circumferentially around the needle body and all communicating with the interior of the needle body.
4. The laparoscopic needle assembly of claim 1, wherein said first and second connector ends are of standard connector construction and are adapted to be docked to external structures as desired.
5. The laparoscopic needle device of claim 1, wherein said chassis is provided with an adhesive patch on a side thereof remote from said bund pillar, said adhesive patch being adapted to be adhesively engaged with an external structural fixation base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235825.7A CN111388065B (en) | 2020-03-30 | 2020-03-30 | Abdominal cavity puncture needle device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235825.7A CN111388065B (en) | 2020-03-30 | 2020-03-30 | Abdominal cavity puncture needle device |
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| CN111388065A CN111388065A (en) | 2020-07-10 |
| CN111388065B true CN111388065B (en) | 2023-01-10 |
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| CN111388065A (en) | 2020-07-10 |
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