CN113599662B

CN113599662B - Drainage tube convenient to lay under peritoneoscope

Info

Publication number: CN113599662B
Application number: CN202110780515.8A
Authority: CN
Inventors: 张明泽; 徐飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-03-21
Anticipated expiration: 2041-07-09
Also published as: CN113599662A

Abstract

The invention discloses a drainage tube convenient to place under a laparoscope, which comprises a tube core component and a hose detachably sleeved outside the tube core component, wherein the tube core component comprises a core wire and a plurality of rigid shaping pieces, the shaping piece positioned at the foremost end is a first shaping piece, the other shaping pieces are second shaping pieces, all the second shaping pieces are provided with through holes through which the core wire can pass, the front end of the core wire is connected with the first shaping piece, the rear end of the core wire sequentially passes through all the second shaping pieces, and an acute angle is formed between the front end surface and the rear end surface of at least one shaping piece so that the hose can be bent when the core wire is pulled backwards. The drainage tube of the invention is convenient to be inserted into a focus by bypassing organs in the body of a patient under the guidance of the laparoscope, and is beneficial to reducing the operation difficulty.

Description

Drainage tube convenient to lay under peritoneoscope

Technical Field

The invention relates to the technical field of drainage tubes, in particular to a drainage tube convenient to place under a laparoscope.

Background

The clinical surgical drainage tubes are used for catheterization, wounds, gastrointestinal tracts, biliary tracts and the like. Surgical drainage is used for guiding pus, blood and liquid accumulated between human tissues or in a body cavity to the outside of a body so as to prevent postoperative infection and influence on wound healing.

The existing drainage tube is a soft rubber tube, when the drainage tube is inserted into an abdominal cavity for drainage, the end part of the drainage tube is clamped by an operation clamp under the guidance of the laparoscope, the drainage tube is pulled to the deep part of the abdominal cavity a little bit, so that the drainage tube slowly bypasses organs such as small intestine, large intestine and the like in the abdominal cavity, and is finally inserted into a focus, the operation difficulty is high, and time and labor are wasted.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a drainage tube that is convenient to bypass organs in a human body under a laparoscope and is placed at a lesion.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the utility model provides a drainage tube convenient to lay under peritoneoscope, include the tube core subassembly with can dismantle the suit in hose outside the tube core subassembly, the tube core subassembly include heart yearn and a plurality of rigid moulding, the moulding piece that is located foremost is first moulding, and the remaining moulding piece of its is the second moulding, and all second moulds the piece and all is provided with the through hole that can supply the heart yearn to pass, the front end of heart yearn with first moulding connect, the rear end of heart yearn passes all second moulding in proper order, constitutes an acute angle so that between the preceding terminal surface of at least one moulding and the rear end face the heart yearn can make when pulling backward the hose is crooked.

Preferably, the rear end of the core wire is connected with a screw rod, a fixing nut matched with the screw rod is sleeved on the screw rod, and the front end face of the fixing nut is abutted to the second plastic piece on the rearmost side.

Preferably, the rear end of the screw is provided with a screwing head.

Preferably, a gap is reserved between the plastic part positioned in the hose and the inner side wall of the hose, a staggered positioning structure is arranged between at least two adjacent plastic parts, and when the core wire is tensioned backwards, the staggered positioning structure pushes the corresponding plastic part to move radially relative to the hose so as to clamp the hose.

Preferably, the staggered positioning structure comprises a wedge-shaped convex part arranged on the rear side part of the first plastic part and a notch arranged on the front side part of the second plastic part adjacent to the first plastic part.

Preferably, the second plastic part with the notch is provided with a tapered hole section which is gradually narrowed from front to back.

The invention has the beneficial effects that: when the drainage tube is inserted into an abdominal cavity for drainage, under the guidance of a laparoscope, the front end of the hose can be bent properly by controlling the tightness of the core wire, so that the front end of the hose bypasses organs such as small intestine, large intestine and the like in the abdominal cavity and is finally inserted into a focus, after the front end of the hose is inserted into a target position, the front end of the hose is clamped by an operation clamp, then the core wire is loosened, and all plastic parts are pulled out of the hose through the core wire, so that the drainage tube is convenient and rapid, and the difficulty of operation is reduced.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a cross-sectional view of the die assembly in operation;

fig. 4 is an enlarged view of a circled portion in fig. 3.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear \8230;) in the embodiments of the present invention are only used for explaining the relative position relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the descriptions referred to in this application as "preferred," "less preferred," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1, the embodiment of the invention provides a drainage tube convenient for laparoscopic placement, which comprises a tube core assembly 100 and a hose 2 detachably sleeved outside the tube core assembly 100, wherein the tube core assembly 100 comprises a core wire 4 and a plurality of rigid plastic parts, the plastic part at the foremost end is a first plastic part 31, the rest plastic parts are second plastic parts 32, all the second plastic parts 32 are provided with through holes 301 through which the core wire 4 can pass, the front end of the core wire 4 is connected with the first plastic part 31, the rear end of the core wire 4 sequentially passes through all the second plastic parts 32, and an acute angle is formed between the front end face and the rear end face of at least one plastic part.

The front end surface and the rear end surface of a part of the shaping pieces are arranged to be unparallel, the included angle between the front end surface and the rear end surface is 0-90 degrees, and when the core wire 4 is tensioned backwards, the shaping pieces can be close to each other, so that the hose 2 is bent.

The front end of the core wire 4 may be fixedly connected to the first plastic member 31, or a through hole 301 may be provided in the first plastic member 31, and the front end of the core wire 4 passes through the through hole 301 and is knotted to prevent the core wire 4 from being detached from the first plastic member 31. The core wire 4 is generally made of a high-strength wire such as a steel wire or a nylon wire.

Preferably, the hose 2 is a circular tube, a gap is left between the plastic parts in the hose 2 and the inner side wall of the hose 2, the front side surfaces and the back side surfaces of the most front 6-10 plastic parts are generally arranged in a non-parallel structure, and the included angle between the front side surfaces and the back side surfaces of the plastic parts is generally 5-20 degrees; the remaining shaping members are configured to be cylindrical. When the drainage tube is inserted into an abdominal cavity for drainage, under the guidance of a laparoscope, the tightness of the core wire 4 can be controlled, so that the front end of the hose 2 is bent properly, the front end of the hose bypasses organs such as small intestine and large intestine in the abdominal cavity and is finally inserted into a focus, after the front end of the hose 2 is inserted into a target position, the front end of the hose 2 is clamped by a surgical clamp, then the core wire 4 is loosened, and all plastic parts are pulled out of the hose 2 through the core wire 4, so that the drainage tube is convenient and rapid, and the difficulty of surgical operation is reduced.

Further, the rear end of heart yearn 4 is connected with screw rod 5, and the cover is equipped with rather than complex fixation nut 6 on the screw rod 5, and fixation nut 6's preceding terminal surface and the second moulding 32 butt of rearmost side. In the operation process, the core wire 4 is tensioned or prevented from loosening by rotating the screw 5, and then the curvature of the drainage tube is adjusted.

In order to facilitate screwing of the screw 5, the rear end of the screw 5 is provided with a screwing head 7.

Furthermore, a staggered positioning structure is arranged between at least two adjacent shaping pieces, and when the core wire 4 is tensioned backwards, the staggered positioning structure pushes the corresponding shaping pieces to move radially relative to the hose 2 so as to clamp the hose 2.

In a preferred version of the invention, the staggered positioning structure comprises a wedge-shaped projection 311 arranged on the rear side of the first shaped part 31 and a notch 321 arranged on the front side of the second shaped part 32 adjacent to the first shaped part 31. When the core wire 4 is tightened, the wedge-shaped convex part 311 is clamped into the corresponding notch 321, so that the first plastic part 31 and the second plastic part 32 adjacent to the first plastic part generate certain radial displacement relative to the hose 2, namely the hose 2 can be clamped tightly, and the separation of the core assembly 100 and the hose 2 in the process of inserting the drainage tube into the abdominal cavity is avoided.

Further, the second plastic part 32 with the notch 321 has a tapered hole section 302 which is gradually narrowed from front to back at the front end of the through hole 301. With this design, the wedge-shaped protrusion 311 is engaged in the notch 321 to radially displace the first plastic part 31 from the adjacent second plastic part 32, while the through holes 301 of the two are still kept facing each other, so that the core wire 4 can naturally bend and transition at the joint of the two and tighten the first plastic part 31 and the adjacent second plastic part 32.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. A drainage tube convenient for placement under a laparoscope is characterized by comprising a tube core assembly (100) and a hose (2) detachably sleeved outside the tube core assembly (100), wherein the tube core assembly (100) comprises a core wire (4) and a plurality of rigid shaping pieces, the shaping piece positioned at the foremost end is a first shaping piece (31), the rest shaping pieces are second shaping pieces (32), all the second shaping pieces (32) are provided with through holes (301) for the core wire (4) to pass through, the front end of the core wire (4) is connected with the first shaping piece (31), the rear end of the core wire (4) sequentially passes through all the second shaping pieces (32), and an acute angle is formed between the front end face and the rear end face of at least one shaping piece so that the hose (2) can be bent when the core wire (4) is pulled backwards;

a gap is reserved between the plastic parts positioned in the hose (2) and the inner side wall of the hose (2), a staggered positioning structure is arranged between at least two adjacent plastic parts, and when the core wire (4) is tensioned backwards, the staggered positioning structure pushes the corresponding plastic parts to move radially relative to the hose (2) so as to clamp the hose (2);

the staggered positioning structure comprises a wedge-shaped convex part (311) arranged at the rear side part of the first plastic part (31) and a notch (321) arranged at the front side part of the second plastic part (32) adjacent to the first plastic part (31).

2. A drainage tube convenient for placing under laparoscope as claimed in claim 1, wherein the rear end of the core wire (4) is connected with a screw rod (5), the screw rod (5) is sleeved with a fixed nut (6) matched with the screw rod, and the front end face of the fixed nut (6) is abutted with the second plastic part (32) at the rearmost side.

3. A drainage tube for facilitating placement under a laparoscope as defined in claim 2, wherein the rear end of the screw (5) is provided with a screw head (7).

4. A drain tube for facilitating placement under a laparoscope according to claim 1, characterized in that the second plastic member (32) with said recess (321) has a tapered section (302) which narrows from the front to the back in the front end of the through hole (301).