KR20160141412A - Egress cannula - Google Patents
Egress cannula Download PDFInfo
- Publication number
- KR20160141412A KR20160141412A KR1020150077037A KR20150077037A KR20160141412A KR 20160141412 A KR20160141412 A KR 20160141412A KR 1020150077037 A KR1020150077037 A KR 1020150077037A KR 20150077037 A KR20150077037 A KR 20150077037A KR 20160141412 A KR20160141412 A KR 20160141412A
- Authority
- KR
- South Korea
- Prior art keywords
- outer tube
- inner tube
- cannula
- present
- tube
- Prior art date
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Classifications
-
- A61M1/008—
-
- 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
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
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- Health & Medical Sciences (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
The present invention relates to a drainage cannula. More particularly, the present invention relates to a drain cannula for discharging a perfusion liquid during an endoscopic procedure.
Joint endoscopy has been used extensively for the diagnosis and treatment of various lesions in the joints. Recently, it has become increasingly important not only for human medicine but also for veterinary medicine in veterinary medicine.
However, there is a risk of joint surface damage due to the equipment used for joint endoscopy. Especially, when applied to small joints or small joints of humans, there is a high possibility of damage of joints due to manipulation of instruments.
During endoscopic endoscopic procedures, intra-articular perfusion is needed to ensure adequate space within the capsulorrhaphy or to remove turbidity caused by hemorrhage or floaters during operation. In order to maintain proper infusion and release of the perfusate, adequate pressure and sufficient volume of perfusate should be injected and the perfusate should be appropriately drained to the outside.
To this end, a hypodermic needle may be used for small-sized joints that can not be used with a drain cannula or designed for drainage.
However, when a drainage cannula is used in a small joint, torn joint damage may occur during trocar insertion or instrument manipulation, and in the case of a needle, In addition, the drainage cannula is often clogged or dislodged compared with the drainage cannula, which may cause a problem of requiring more operations during the procedure.
In order to solve the above-mentioned problem, the present invention provides an improved drainage cannula capable of smoothly discharging perfusion liquid during joint endoscopic procedures, minimizing the tortuous damage of the joints, and easily mounting the small-sized joints .
According to an aspect of the present invention, An outer tube coupled to the body and communicating with the body; An inner tube provided inside the outer tube so that a front end portion thereof is inserted into and extracted from the inner and outer portions of the outer tube, and a drain hole communicating with the outer portion is formed at the front end portion; And an elastic member disposed inside the body portion and urging the inner tube forward.
Here, the front end of the outer tube is provided with a sharpened tip portion.
Further, a drain hole communicating with the outside is formed in a front portion of the outer tube.
Further, the front end of the inner tube is curved.
Further, a flange protruding in a radial direction and being resiliently biased by the elastic member is formed on a rear outer circumferential surface of the inner tube disposed inside the body portion.
In addition, a regulating valve is provided at the rear end of the body portion to regulate the amount of the perfusion liquid flowing into the body portion.
The present invention eliminates the need to mount a separate trocar or the like, so that the application time is quick and simple compared with the conventional drain cannula, and the operation procedure and time can be saved. In addition, there is an effect of preventing damage to joints caused by the trocar tub and damage to the tongue-like joint that may occur during operation of the apparatus.
In addition, the drainage of the perfusion liquid can be maintained smoothly with the distal structure having a porous structure, and the necessity of operation due to clogging of the tube is reduced compared to the case of using a needle or the like.
1 is a view showing a state in which an inner tube of a drain cannula is drawn out according to a preferred embodiment of the present invention.
FIG. 2 is a view showing a state in which an inner tube of a drain cannula according to a preferred embodiment of the present invention is inserted.
3 is a cross-sectional view of an outer tube and an inner tube provided in a drain cannula according to a preferred embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. Further, if it is determined that the gist of the present invention may be blurred, detailed description thereof will be omitted. Further, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be practiced by those skilled in the art.
FIG. 1 is a view showing a state in which an inner tube of a drain cannula is drawn out according to a preferred embodiment of the present invention. FIG. 2 is a perspective view showing a state in which an inner tube of a drain cannula according to a preferred embodiment of the present invention is inserted 3 is a cross-sectional view of an outer tube and an inner tube provided in a drain cannula according to a preferred embodiment of the present invention.
Hereinafter, a
The
The
Specifically, the
The
The
The
A plurality of drain holes (132) communicating with the outside are formed on the outer peripheral surface of the front portion of the outer tube (130).
The front end of the
The
A plurality of
A
The
The
The
The
The
In this state, the
Immediately after the
At this time, since the front end of the
Meanwhile, the
The
It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and accompanying drawings. The scope of protection of the present invention should be construed according to the claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.
100: drainage cannula
110: body portion 120: regulating valve
122: lever 130: outer tube
132, 142: Drain hole 134:
140: inner tube 144: flange
150: elastic member
Claims (6)
An outer tube coupled to the body and communicating with the body;
An inner tube provided inside the outer tube so that a front portion thereof is inserted and extracted into and out of the outer tube, and a drain hole communicating with the outside is formed in the front portion; And
And an elastic member disposed inside the body portion and urging the inner tube forward.
Wherein the front end of the outer tube is provided with a sharpened tip portion.
And a drain hole communicating with the outside is formed in a front portion of the outer tube.
Wherein a front end of the inner tube forms a curved surface.
And a flange protruding in a radial direction is formed on a rear outer circumferential surface of the inner tube disposed inside the body portion.
And a control valve is provided at a rear end of the body to adjust an amount of the liquid to be introduced into the body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150077037A KR101751399B1 (en) | 2015-06-01 | 2015-06-01 | Egress cannula |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150077037A KR101751399B1 (en) | 2015-06-01 | 2015-06-01 | Egress cannula |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160141412A true KR20160141412A (en) | 2016-12-09 |
KR101751399B1 KR101751399B1 (en) | 2017-06-27 |
Family
ID=57574641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150077037A KR101751399B1 (en) | 2015-06-01 | 2015-06-01 | Egress cannula |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101751399B1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7384417B2 (en) | 1990-12-14 | 2008-06-10 | Cucin Robert L | Air-powered tissue-aspiration instrument system employing curved bipolar-type electro-cauterizing dual cannula assembly |
US6692473B2 (en) * | 2001-05-24 | 2004-02-17 | John A. St. Cyr | Dual lumen adjustable length cannulae for liquid perfusion or lavage |
US7435214B2 (en) | 2004-01-29 | 2008-10-14 | Cannuflow, Inc. | Atraumatic arthroscopic instrument sheath |
-
2015
- 2015-06-01 KR KR1020150077037A patent/KR101751399B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR101751399B1 (en) | 2017-06-27 |
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