CN110693582A - Puncture drainage component and pus cavity drainage device - Google Patents

Puncture drainage component and pus cavity drainage device Download PDF

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Publication number
CN110693582A
CN110693582A CN201911125702.1A CN201911125702A CN110693582A CN 110693582 A CN110693582 A CN 110693582A CN 201911125702 A CN201911125702 A CN 201911125702A CN 110693582 A CN110693582 A CN 110693582A
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CN
China
Prior art keywords
drainage
puncture
needle
indwelling cannula
cannula
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CN201911125702.1A
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Chinese (zh)
Inventor
赵亚洲
全丽华
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Kangmai Technology Suzhou Co ltd
Shengyi Technology Beijing Co ltd
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Xinhe Technology Tianjin Center LP
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Priority to CN201911125702.1A priority Critical patent/CN110693582A/en
Publication of CN110693582A publication Critical patent/CN110693582A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • 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
    • A61B2017/3413—Needle locating or guiding means guided by ultrasound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1007—Breast; mammary

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention provides a puncture drainage assembly and a pus cavity drainage device. The puncture drainage assembly comprises: the puncture needle core comprises a needle tube, a needle point formed at the first end of the needle tube and a needle core connecting part fixedly arranged at the second end of the needle tube; the indwelling cannula is detachably sleeved outside the needle tube, one end of the indwelling cannula close to the needle point is a first end, and one end close to the needle core connecting part is a second end; the second end of the indwelling cannula is provided with a cannula connecting part; the puncture needle core is pulled out and separated from the indwelling cannula by the second end of the indwelling cannula. The puncture drainage component can realize puncture pus pumping and indwelling cannula placement through one-time puncture, and is very simple and convenient to operate. And once the puncture drainage assembly disclosed by the invention is punctured successfully, drainage and pressure reduction can be carried out immediately, and compared with the prior art, other operations are not required, so that the pain of a patient can be effectively reduced.

Description

Puncture drainage component and pus cavity drainage device
Technical Field
The invention relates to the field of a sac cavity drainage treatment device, in particular to a puncture drainage assembly and a pus cavity drainage device.
Background
Acute mastitis mostly occurs in women in the lactation period after delivery, and most of the acute mastitis is most common in the 3-4 weeks after delivery and can occur at any time point in the lactation period of the puerpera. Pathogenic bacteria generally invade from a nipple laceration or rhagadia to cause infection, and the mammary abscess is a serious inflammation stage developed on the basis of the infection, and some patients often do not properly treat at home or have multiple disease courses, so that simple inflammation is developed into the mammary abscess. The abscess is formed, drainage must be carried out in time, even the opening is larger, the traditional operation treatment needs to be carried out 'drainage to the mouth', a large amount of gauze is used for filling, the medicine is changed every day, the gauze is changed until the wound is healed, the process is painful, and the workload of doctors is quite large.
At present, some hospitals or doctors try minimally invasive methods to treat abscess, and the main methods are two, namely a puncture pus-drawing method and a puncture catheter-placing drainage method.
The first puncture pus-drawing method is to draw out pus by using a syringe, so as to avoid the pain of the operation, and generally operates under the guidance of ultrasound to ensure the success of puncture pus-drawing. The method has the advantage that only one pus drawing needle hole of the epidermis can be healed the next day.
However, the puncture pus-drawing method is suitable for pus cavities with completely liquefied abscesses, if many solid secretions such as cheese, milk residues and the like in the pus cavities easily block the needle heads, and the pus-drawing effect is greatly weakened; and puncture pus-drawing method has a shortcoming that the treatment effect is only achieved when drawing pus, the pus cannot be continuously discharged, and secondary puncture is needed if the pus appears again, so that the puncture pus-drawing method is not suitable for an excessively large pus cavity, the pus is difficult to be removed completely, and the residual pus can cause the risk of chronic inflammation. In addition, pus extraction requires a doctor to manually extract pus, which increases the burden on the doctor, and thus leads to a limited daily visit.
The second puncture catheterization drainage method is to place a drainage tube in the abscess cavity and fix the drainage tube. Because the diameter of the drainage tube is larger than that of the syringe needle, the drainage tube also has better drainage effect on solid powder slag-like secretion. It has another advantage that because the drainage tube is continuously placed, the drainage tube has the effect of continuous drainage, and the secretion in the abscess cavity can be continuously discharged. And the pus cavity can be washed through the drainage tube after operation, so that the pus can be thoroughly discharged as soon as possible. But present drainage tube diameter is far away than syringe needle diameter, and the wound can be far away than the wound of syringe, and the puncture forms the passageway and sets up the drainage tube and divide two steps to go on moreover, need puncture through other modes earlier and form the passageway promptly, and rethread auxiliary device sets up the drainage tube in the passageway, leads to the troublesome poeration, and because the substep is gone on, after forming the passageway, the pus is must flow out, further increases clearance work load.
In the prior art, other hard devices wrap the drainage tube, so that puncture and drainage tube placement are completed at one time, but the hard devices wrap the outside of the drainage tube, other operation steps are needed to separate the hard devices from the drainage tube, and drainage can be started after the hard devices are pulled out, so that pain of patients is obviously increased, and operation time is also increased. And the process of the hard device wrapping externally and pulling out further increases the wound.
Disclosure of Invention
The invention aims to provide a puncture drainage assembly and a pus cavity drainage device which are simple to operate and can effectively reduce the pain of a patient.
The invention provides a puncture drainage assembly, comprising: the puncture needle core comprises a needle tube, a needle point formed at the first end of the needle tube and a needle core connecting part fixedly arranged at the second end of the needle tube; the indwelling cannula is detachably sleeved outside the needle tube, one end of the indwelling cannula close to the needle point is a first end, and one end close to the needle core connecting part is a second end; the second end of the indwelling cannula is provided with a cannula connecting part; the puncture needle core is pulled out and separated from the indwelling cannula by the second end of the indwelling cannula.
Furthermore, when the indwelling cannula is sleeved on the puncture needle core, the needle point is positioned outside the first end of the indwelling cannula.
Furthermore, the needle core connecting part and the sleeve connecting part are provided with mutually matched limiting parts.
Further, the puncture needle core and the indwelling cannula are gradually increased in diameter from the first end to the second end.
Furthermore, the stylet connecting part comprises a first sleeve hole part provided with an axial sleeve hole; the stylet connecting portion also includes a laterally extending hand held operating portion.
Furthermore, a drainage hole is arranged on the side wall of the first end of the indwelling cannula.
Furthermore, a plurality of drainage holes are formed, and the drainage holes are arranged in a pairwise opposite mode; the drainage area of each drainage hole is smaller than the end surface area of the first end of the indwelling sleeve.
Furthermore, the end surface of the first end of the indwelling cannula is a cylindrical surface, and the first end of the needle tube is an inclined surface to form a needle tip.
Further, the puncture drainage assembly further comprises a three-way assembly, and a first pipe orifice of the three-way assembly is connected with the sleeve connecting part.
Furthermore, the sleeve connecting part comprises a second sleeve hole part provided with an axial sleeve hole, and the outer peripheral surface of the second sleeve hole part is provided with an external thread; the first pipe orifice of the three-way component comprises an insertion part in contact sealing with the axial sleeve hole of the second sleeve hole part, and a nut which is arranged on the insertion part and matched with the external thread.
Further, the first pipe orifice of the three-way component is connected with the sleeve connecting part in a buckling mode.
The invention also provides a pus cavity drainage device, which comprises a suction device and the puncture drainage assembly; the suction device is hermetically connected with a needle core connecting part of a puncture needle core of the puncture drainage component through a connecting pipeline.
Further, the pus cavity drainage device also comprises a drainage kit for providing continuous negative pressure, and the drainage kit is connected with the sleeve connecting part of the indwelling sleeve for pulling out the puncture needle core.
Further, the drainage kit includes a negative pressure balloon or a negative pressure bag.
According to the puncture drainage assembly and the pus cavity drainage device, the puncture needle core and the indwelling sleeve are arranged, and the indwelling sleeve is detachably sleeved outside the needle tube. In the puncture drainage process, the indwelling cannula is punctured to an abscess cavity along with the puncture needle core, puncture pus pumping is realized through the puncture needle core, and the puncture needle core is pulled out after the puncture pus pumping is finished, so that the indwelling cannula can be indwelling, and continuous drainage is realized. The puncture drainage component can realize puncture pus pumping and indwelling cannula placement through one-time puncture, and is very simple and convenient to operate. And once the puncture drainage assembly disclosed by the invention is punctured successfully, drainage and pressure reduction can be carried out immediately, and compared with the prior art, other operations are not required, so that the pain of a patient can be effectively reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a puncture needle core of a puncture drainage assembly according to the present invention after being assembled with an indwelling cannula;
FIG. 2 is a front view of a lancet core according to the present invention;
FIG. 3 is a side elevational view of a lancet core according to the present invention;
FIG. 4 is a schematic view in partial cross-section of an indwelling cannula according to the present invention;
FIG. 5 is a front view schematic illustration of an indwelling cannula according to the present invention;
FIG. 6 is a perspective view of a tee assembly according to the present invention;
FIG. 7 is a front view schematic of a tee assembly according to the present invention;
FIG. 8 is a schematic view in partial cross-section of a tee assembly according to the present invention;
FIG. 9 is a schematic perspective view of the tee assembly according to the present invention with the nut removed;
figure 10 is a schematic view in partial cross-section of an indwelling cannula according to the present invention assembled with a three-way component.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 5, the present invention provides a puncture drainage assembly comprising: a puncture needle core 10, wherein the puncture needle core 10 comprises a needle tube 11, a needle point 12 formed at a first end of the needle tube 11, and a needle core connecting part 13 fixedly arranged at a second end of the needle tube 11; the indwelling cannula 20, the indwelling cannula 20 is detachably sleeved outside the needle tube 11, one end of the indwelling cannula 20 close to the needle point 12 is a first end, and one end close to the needle core connecting part 13 is a second end; the second end of the indwelling cannula 20 is provided with a cannula connection 22; the puncture needle core 10 is pulled out and separated from the indwelling cannula 20 by the second end of the indwelling cannula 20. The invention arranges the puncture needle core 10 and the indwelling cannula 20, and the indwelling cannula 20 is detachably sleeved outside the needle tube 11. In the puncture drainage process, the remaining sleeve 20 is punctured to an abscess cavity along with the puncture needle core 10, puncture pus pumping is realized through the puncture needle core 10, and the remaining sleeve 20 can be left after the puncture pus pumping is finished by pulling out the puncture needle core 10, so that continuous drainage is realized. The puncture drainage component can realize puncture pus pumping and placement of the indwelling cannula 20 through one-time puncture, has very simple and convenient operation, can reduce wounds, and can intuitively judge whether puncture is successful or not through whether pus flows out or not in the puncture process. And once the puncture drainage assembly disclosed by the invention is punctured successfully, drainage and pressure reduction can be carried out immediately, and compared with the prior art, other operations are not required, so that the pain of a patient can be effectively reduced.
Preferably, as shown in fig. 1, when the indwelling cannula 20 is mounted on the puncture needle core 10, i.e. before starting puncturing, the needle tip 12 is located outside the first end of the indwelling cannula 20, i.e. after mounting the two, the foremost end is the needle tip 12 of the puncture needle core 10, so as to facilitate puncturing the skin and guiding the puncture needle core 10 and the indwelling cannula 20 to puncture the pus cavity together.
More preferably, as shown in fig. 3 and 4, the end surface of the first end of the indwelling cannula 20 is a cylindrical surface, and the first end of the needle tube 11 is a beveled surface to form the needle tip 12, i.e. the whole puncture drainage assembly has only one needle tip 12, so as to prevent the front end surface of the indwelling cannula 20 from scraping the puncture hole and increasing pain during the puncture process.
In the preferred embodiment of the invention, the puncture needle core 10 and the indwelling sleeve 20 are designed to have equal diameters, the needle core connecting part 13 and the sleeve connecting part 22 are provided with mutually matched limiting parts, and in the production and assembly process, the puncture needle core 10 and the indwelling sleeve 20 are sleeved and assembled to the limiting parts to limit mutually, so that the reliability and the product consistency are effectively ensured.
In addition, in other preferred embodiments, the puncture needle core 10 and the indwelling cannula 20 gradually increase in diameter slightly from the first end to the second end, that is, the puncture drainage assembly increases in diameter slightly from the needle tip 12 to the tail. On one hand, in the assembling process, the assembling can be ensured to be in place without arranging a limiting part; on the other hand, during the puncture process, the wound can be further reduced; on the other hand, in the process of pulling out the puncture needle core 10 and retaining the retaining sleeve 20 positioned at the outer side, the diameter is slightly changed, so that the puncture needle core can be more easily and conveniently pulled out.
Referring to fig. 2 and 3, the stylet connecting portion 13 includes a first cannula portion 131 provided with an axial cannula hole, i.e., similar to the way a conventional syringe is connected to a conventional needle tube, so as to facilitate docking of the puncture stylet 10 with a corresponding negative pressure device, such as an injector, a negative pressure machine, etc. Preferably, the stylet coupling portion 13 also includes a laterally extending hand held operating portion 132 to facilitate hand held puncturing operations.
Referring to fig. 4 and 5, the sidewall of the first end of the indwelling cannula 20 is provided with drainage holes 21, that is, the indwelling cannula 20 is provided with other drainage holes 21 besides the port of the first end, so as to improve the drainage effect.
More preferably, the drainage holes 21 are multiple, and the drainage holes 21 are arranged in pairs, so that the drainage holes 21 face different directions, and on one hand, sufficient drainage is facilitated; on the other hand, the drug can be fully and uniformly distributed during drug injection or flushing. In a preferred embodiment, the drainage area of each drainage aperture 21 is less than the area of the end face of the first end of indwelling cannula 20, thereby preventing blockage of drainage apertures 21.
As shown in fig. 6 to 10, the puncture drainage assembly may further include a three-way assembly 30, a first nozzle 31 of the three-way assembly 30 is connected to the cannula connecting portion 22, a second nozzle 32 of the three-way assembly 30 is used for being connected to the negative pressure device, and a third nozzle of the three-way assembly 30 is provided with a rubber plug, which may be used for injecting a drug or flushing with saline. Through the utility tee assembly 30, it is convenient to flush or infuse the medicine.
In one embodiment, first nozzle 31 of tee assembly 30 is snap-fit to cannula connection 22 to facilitate removal of tee assembly 30 from indwelling cannula 20.
In another embodiment, as shown in fig. 10, the sleeve connection portion 22 includes a second sleeve hole portion 221 provided with an axial sleeve hole, and an outer circumferential surface of the second sleeve hole portion 221 is provided with an outer thread 222; the first nozzle 31 of the three-way assembly 30 includes an insertion portion 311 sealed in contact with the axial socket hole of the second socket portion 221, and a nut 312 provided on the insertion portion 311 and engaged with the external thread 222. That is, the first pipe orifice 31 is not only connected with the axial sleeve hole through the insertion portion 311, but also connected with the nut 312 through the thread arranged on the outer side, so that the connection reliability can be effectively improved, and the problem of poor sealing caused by pollution to the axial sleeve hole due to the fact that the puncture needle core 10 is pulled out when the puncture needle core is simply inserted into the axial sleeve hole is avoided.
The invention also provides a pus cavity drainage device, which comprises a suction device and the puncture drainage assembly; the suction device is connected with the needle core connecting part 13 of the puncture needle core 10 of the puncture drainage component in a sealing way through a connecting pipeline. Provide through suction means and last, suction force size adjustable negative pressure compares the mode through manual suction among the prior art, has higher reliability, can practice thrift doctor's time simultaneously, raises the efficiency.
More preferably, the pus chamber drainage device of the present invention further comprises a drainage kit for providing a continuous negative pressure, the drainage kit being connected to the cannula-connecting portion 22 of the indwelling cannula 20 from which the puncture needle core 10 is pulled out. That is, in the present invention, after the pus is completely pumped out through the puncture needle core 10, the puncture needle core 10 is pulled out, and after the indwelling cannula 20 on the outer side is indwelling, the drainage kit can be connected, thereby realizing the continuous drainage.
Generally, the drainage kit may include a negative pressure balloon or a negative pressure bag and a corresponding connecting tube, the negative pressure balloon or the negative pressure bag is connected to the indwelling cannula 20 through the connecting tube, and the negative pressure balloon or the negative pressure bag is relatively portable, so as to facilitate the patient to walk.
Specifically, the working principle and the working process of the puncture drainage assembly and the abscess cavity drainage device of the invention are specifically described by taking a mammary abscess as an example.
The whole process is divided into two parts of intra-operative negative pressure drainage and post-operative indwelling drainage, which are respectively explained.
Firstly, negative pressure drainage in operation:
1, finding out an abscess part through the guidance of a handheld ultrasonic device, then, holding a handheld operation part 132 of the puncture drainage assembly by hand, and puncturing the puncture needle core 10 and the indwelling cannula 20 to an abscess cavity together.
2, then be connected to the axial of nook closing hole of nook closing member connecting portion 13 with suction device, reconcile suitable negative pressure to suction device, continue the suction, take out the pus to the negative pressure jar to realize taking out the pus.
Second, postoperative indwelling drainage
1. After pus is extracted by negative pressure drainage in the operation, the puncture needle core 10 is extracted, and the indwelling cannula 20 is retained in the breast.
2. The drainage kit is connected with the indwelling cannula 20 and is connected with the drainage bag or the negative pressure balloon through the negative pressure drainage bottle for continuous drainage.
In addition, according to the requirement, the three-way component 30 can be connected to the indwelling cannula 20, that is, the first nozzle 31 of the three-way component 30 is connected to the indwelling cannula 20, the second nozzle 32 is connected to the suction device or the drainage kit, and the third nozzle 33 is a drug injection nozzle, which can be used for injecting drugs and injecting physiological saline for cleaning.
Although the embodiment of the present invention is applied to the combined treatment such as rinsing, local administration, and drainage of the abscess after the formation of the abscess in a disease such as typical acute mastitis, the puncture drainage module and the abscess drainage device of the present invention are not limited thereto, and may be extended to the treatment such as decompression drainage of abscess in each body cavity of a human body, local administration, and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A puncture drainage assembly, comprising:
the puncture needle core (10), the puncture needle core (10) comprises a needle tube (11), a needle point (12) formed at the first end of the needle tube (11), and a needle core connecting part (13) fixedly arranged at the second end of the needle tube (11);
the indwelling cannula (20) is detachably sleeved outside the needle tube (11), one end of the indwelling cannula (20) close to the needle point (12) is a first end, and one end close to the needle core connecting part (13) is a second end; the second end of the indwelling cannula (20) is provided with a cannula connecting part (22);
the puncture needle core (10) is pulled out and separated from the indwelling cannula (20) by the second end of the indwelling cannula (20).
2. The lancing drainage assembly of claim 1,
when the indwelling cannula (20) is sleeved on the puncture needle core (10), the needle point (12) is positioned outside the first end of the indwelling cannula (20).
3. The lancing drainage assembly of claim 1,
the stylet connecting part (13) and the sleeve connecting part (22) are provided with mutually matched limiting parts.
4. The lancing drainage assembly of claim 1,
the puncture needle core (10) and the indwelling cannula (20) gradually increase in diameter from the first end to the second end.
5. The lancing drainage assembly of claim 1,
the stylet connecting part (13) comprises a first sleeve hole part (131) provided with an axial sleeve hole;
the stylet connecting portion (13) further includes a laterally extending hand-held operating portion (132).
6. The lancing drainage assembly of claim 1,
the side wall of the first end of the indwelling cannula (20) is provided with a drainage hole (21).
7. The lancing drainage assembly of claim 6,
the drainage holes (21) are multiple, and the drainage holes (21) are arranged in pairs in an opposite manner; the drainage area of each drainage hole (21) is smaller than the end surface area of the first end of the indwelling sleeve (20).
8. The lancing drainage assembly of claim 1,
the end face of the first end of the indwelling sleeve (20) is a cylindrical surface, and the first end of the needle tube (11) is an inclined surface to form the needle tip (12).
9. The lancing drainage assembly of claim 1,
the puncture drainage assembly further comprises a three-way assembly (30), and a first pipe orifice (31) of the three-way assembly (30) is connected with the sleeve connecting part (22).
10. The lancing drainage assembly of claim 9,
the sleeve connecting part (22) comprises a second sleeve hole part (221) provided with an axial sleeve hole, and an external thread (222) is arranged on the outer peripheral surface of the second sleeve hole part (221);
the first pipe orifice (31) of the three-way component (30) comprises an insertion part (311) in contact sealing with the axial sleeve hole of the second sleeve hole part (221), and a nut (312) which is arranged on the insertion part (311) and matched with the external thread (222).
11. The lancing drainage assembly of claim 9,
the first pipe orifice (31) of the three-way component (30) is in snap connection with the sleeve connecting part (22).
12. A pus drainage device comprising a suction device and a puncture drainage assembly according to any one of claims 1 to 11;
the suction device is hermetically connected with a needle core connecting part (13) of a puncture needle core (10) of the puncture drainage component through a connecting pipeline.
13. The abscess drainage device of claim 12, further comprising a drainage kit providing a continuous negative pressure, said drainage kit being connected to a cannula connection (22) of the indwelling cannula (20) from which the trocar core (10) is withdrawn.
14. The abscess drainage device of claim 13,
the drainage kit comprises a negative pressure balloon or a negative pressure bag.
CN201911125702.1A 2019-11-18 2019-11-18 Puncture drainage component and pus cavity drainage device Pending CN110693582A (en)

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CN201911125702.1A CN110693582A (en) 2019-11-18 2019-11-18 Puncture drainage component and pus cavity drainage device

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Application Number Priority Date Filing Date Title
CN201911125702.1A CN110693582A (en) 2019-11-18 2019-11-18 Puncture drainage component and pus cavity drainage device

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2902205Y (en) * 2005-11-16 2007-05-23 李剑明 Soft puncture drainage needle
CN202313629U (en) * 2011-10-17 2012-07-11 鞠作泉 Penetrative positioning pleural casing puncture needle
WO2014047891A1 (en) * 2012-09-28 2014-04-03 Zhang Jianming Soft tube detaining scalp needle with combined and connected tube-needle
CN105852940A (en) * 2016-06-16 2016-08-17 张冰 Puncture and drainage needle
CN211609987U (en) * 2019-11-18 2020-10-02 康脉科技(苏州)有限公司 Puncture drainage component and pus cavity drainage device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2902205Y (en) * 2005-11-16 2007-05-23 李剑明 Soft puncture drainage needle
CN202313629U (en) * 2011-10-17 2012-07-11 鞠作泉 Penetrative positioning pleural casing puncture needle
WO2014047891A1 (en) * 2012-09-28 2014-04-03 Zhang Jianming Soft tube detaining scalp needle with combined and connected tube-needle
CN105852940A (en) * 2016-06-16 2016-08-17 张冰 Puncture and drainage needle
CN211609987U (en) * 2019-11-18 2020-10-02 康脉科技(苏州)有限公司 Puncture drainage component and pus cavity drainage device

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