CN111001074A

CN111001074A - Visual drainage tube

Info

Publication number: CN111001074A
Application number: CN201811168224.8A
Authority: CN
Inventors: 兰津; 刘奇; 盛雨峰; 马捷
Original assignee: Shanghai Bancheng Medical Technology Co ltd
Current assignee: Shanghai Bancheng Medical Technology Co ltd
Priority date: 2018-10-08
Filing date: 2018-10-08
Publication date: 2020-04-14

Abstract

The invention provides a visual drainage tube, which relates to the field of minimally invasive medical instruments and comprises an inner tube for an endoscope to move in and an outer tube sleeved outside the inner tube for the inner tube and the endoscope to move in, wherein the inner tube and the outer tube are in clearance fit; the inner tube and the outer tube are transparent and visible, and the thickness of the tube wall is uniform; one end of the inner tube is closed, and the other end of the inner tube is provided with an opening for an endoscope to enter; the two ends of the outer pipe are both provided with openings, the closed end of the outer pipe close to the inner pipe extends towards the inner pipe and is tightly attached to the outer wall of the inner pipe, and the end of the outer pipe close to the opening of the inner pipe is detachably connected with the inner pipe, so that the invention has the beneficial effects that: the position that cooperation endoscope used can accurate positioning hematoma carries out the drainage simultaneously, reduces the damage that inserts many times and cause, can observe the drainage condition in time simultaneously, improves drainage effect.

Description

Visual drainage tube

Technical Field

The invention relates to the field of minimally invasive medical instruments, in particular to a visual drainage tube.

Background

The existing cerebral hematoma puncture drainage technology is mainly to perform external positioning before an operation according to CT images and then puncture drainage according to positioning points. However, in the process of puncture and drainage, the intracranial puncture process cannot be seen, and the operation is completely carried out by the medical knowledge and experience of doctors, so that the technical requirement on the skill of the doctors is high, the opening of the drainage tube cannot be punctured to the hematoma center accurately, and the accident condition is difficult to master, so that the hematoma drainage effect is poor, the recovery of a patient is slow, and even the recovery of the patient is poor.

Therefore, a visual drainage tube which can be used together with an endoscope is needed, and the visual drainage tube is used together with the existing endoscope used in the brain to accurately position the position of the cerebral hematoma.

Disclosure of Invention

The invention aims to solve the technical problems that the existing drainage tube cannot be matched with an endoscope for use, the position of hematoma cannot be accurately positioned, the drainage tube is inserted for many times according to experience to cause injury to a patient, and the drainage process is difficult to master.

In order to solve the technical problem, the invention discloses a visual drainage tube, and the technical scheme of the invention is implemented as follows:

a visual drainage tube comprises an inner tube for an endoscope or a drainage device to move in and an outer tube sleeved outside the inner tube for the inner tube and the endoscope to move in, wherein the inner tube and the outer tube are in clearance fit; the inner tube and the outer tube are transparent and visible, and the thickness of the tube wall is uniform; one end of the inner tube is closed, and the other end of the inner tube is provided with an opening for an endoscope or a drainage device to enter; the outer tube both ends all establish to the opening, the outer tube is close to inner tube closed end to the inner tube extends and with the interior outer wall of tube is closely laminated, the outer tube is close to inner tube opening one end with the connection can be dismantled to the inner tube.

Preferably, the outer tube and the inner tube are fixed by a luer connector, and the luer connector comprises a convex luer lock device and a concave luer lock device.

Preferably, the male luer lock device is disposed on the inner tube and the female luer lock device is disposed on the outer tube.

Preferably, a plurality of through holes are circumferentially formed in one end, close to the inner pipe, of the outer pipe.

Preferably, the inner tube and the outer tube are respectively provided with scale marks.

Preferably, neither the inner tube nor the outer tube has a length that exceeds the length of the endoscope.

Preferably, the inner tube and the outer tube are both made of a transparent material comprising a transparent inorganic non-metallic material, PET, Pebax, PC, PMMA, PS, PVC, TPU, FEP, PP or PA.

Preferably, the inner tube thickness does not exceed 1 mm.

The beneficial effects of the implementation of the invention are as follows:

1. through the mutual cooperation of endoscope, inner tube and outer tube, can observe the route of inner tube and outer tube in real time, adjust in real time according to the position of hematoma, improve the degree of accuracy of inner tube and outer tube, reduce the injury that causes patient according to the experience stretches into the patient brain internal many times.

2. The separation of inner tube and outer tube can make hematoma from the outer tube internal drainage patient external, and the endoscope can be at drainage in-process real-time observation drainage process to the situation in time should appear, also can stretch into after the drainage is accomplished and stretch into the outer tube through the inner tube and observe the drainage effect, convenient operation.

3. The outer tube is provided with the through hole, so that hematoma in the brain of the patient is drained from the opening of the outer tube and the through hole simultaneously, and the drainage efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic structural view of the joint between the outer tube and the inner tube in this embodiment;

FIG. 3 is a schematic structural view of the present embodiment for embodying the inner tube;

fig. 4 is a schematic structural diagram for embodying the outer tube in this embodiment.

In the above drawings, the reference numerals denote:

1-inner tube; 2-an outer tube; a 3-luer fitting; 31-male luer lock device; 32-female luer lock device; 4-a through hole; 5-graduation mark.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In which like parts are designated by like reference numerals. It should be noted that: the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings; the words "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): a visual drainage tube, as shown in fig. 1 and 2, comprises an inner tube 1 for an endoscope to move therein and an outer tube 2 sleeved outside the inner tube 1 for the inner tube and the endoscope to move therein, wherein the inner tube 1 is in clearance fit with the outer tube 2; the inner tube 1 and the outer tube 2 are transparent and visible, the thickness of the tube wall is uniform, one end of the inner tube 1 is closed, and the other end of the inner tube is provided with an opening for an endoscope to enter; the opening is all established to outer tube 2 both ends, and in outer tube 2 can be stretched into to inner tube 1 from 2 one ends of outer tube, outer tube 2 is close to 1 closed one end of inner tube and extends to be the O type and closely laminate with 1 outer wall of inner tube 1, because 2 tip openings of outer tube, 1 closed one end tip part of inner tube stretches out outer tube 2, and outer tube 2 is close to 1 open end of inner tube and can dismantle with inner tube 1 and be connected.

As shown in figures 1 and 2, in the using process, firstly, the outer tube 2 is sleeved on the inner tube 1, so that the inner tube 1 is abutted with one end of the outer tube 2, and the end far away from the abutment is fixed, further, the inner tube 1 and the outer tube 2 become a whole, the endoscope is extended into the inner tube 1, according to the CT positioning, the endoscope, the inner tube 1 and the outer tube 2 are extended into the brain of a patient along a theoretical path, in the entering process, the surrounding tissues can be observed in real time through the endoscope, when the position of hematoma is found, the angle and the position of the outer tube 2 and the inner tube 1 are adjusted, the drainage tube is continuously inserted until the position of the hematoma is accurately found through the endoscope, the inner tube 1 and the outer tube 2 are sent to the optimal position of the hematoma, then the abutting end of the outer tube 2 and the inner tube 1 are separated, the other end of the outer tube 2 is connected with a drainage device in the prior art, and the like, the endoscope and the inner tube 1 can be always placed in the outer tube 2 for observation in the whole process, the endoscope and the inner tube 1 can move in the outer tube 2, real-time observation is convenient, the endoscope and the inner tube 1 can also be taken out of the outer tube, and when needed, the endoscope and the inner tube 1 are inserted into the outer tube 2 for observing hematoma after the outer tube 2 is washed.

Through foretell mode, can be with realizing the accurate positioning to the internal blood lump of patient's brain, reduce only through the error that the experience judgement caused, can be with the internal hematoma of patient's brain completely drainage of patient external through outer tube 2, the condition after the drainage can conveniently be observed to the cooperation endoscope, reduce and remain, hematoma drainage effect is improved, simultaneously because the cooperation of inner tube 1 and outer tube 2, only need insert patient's brain once with outer tube 2, do not need to insert many times, reduce and cause a lot of damage to patient's brain, can also observe the drainage process in real time, so that in time take measures when the situation appears, convenience and practicality.

In a preferred embodiment, as shown in fig. 1, the outer tube 2 is fixed with the inner tube 1 by a luer 3, the luer 3 is a convenient connection device used in the medical industry, which can simplify the management of liquid and gaseous medical fluids, and this connector also allows a plurality of mutually compatible fluids to be managed by the same tube, thereby reducing the wound on the patient, the luer 3 includes a male luer lock device 31 and a female luer lock device 32, on the one hand, the sealing performance during the liquid transmission process can be ensured by the luer 3, on the other hand, the operation is convenient, the inner tube 1 and the outer tube 2 can be conveniently disassembled, besides, other detachable structures which can be used in the medical field in the prior art can be used without affecting the use of the inner tube 1 and the outer tube 2, and are not specifically described herein.

In a preferred embodiment, as shown in fig. 3 and 4, the male luer lock device 31 is disposed on the inner tube 1, and the female luer lock device 32 is disposed on the outer tube 2, so that the separation of the inner tube 1 and the outer tube 2 is more convenient, the outer tube 2 can be fixed and the male surface of the male luer lock device 31 can be rotated when the outer tube 2 and the inner tube 1 are inserted into the brain of a patient, and the male luer lock device 31 and the female luer lock device 32 can also be disposed on the outer tube 2 and the inner tube 1 respectively and can be adjusted according to actual conditions during actual use.

In a preferred embodiment, as shown in fig. 2, a plurality of through holes 4 are circumferentially arranged at one end, which is tightly attached to an inner tube 1, of an outer tube 2, the through holes 4 are arranged to increase the drainage speed, in the process of hematoma mass drainage, liquid can be drained through the end part of the outer tube 2 when the inner tube 1 is separated from the outer tube 2, and can enter the outer tube 4 from the through holes 4 to be led out of the brain of a patient, so that the drainage efficiency is improved, the through holes 4 can be circumferentially and uniformly distributed on the outer tube 2 and can also be non-uniformly distributed, meanwhile, the through holes 4 are arranged at one side, which is tightly attached to the outer tube 2 and the inner tube 1, when the inner tube 1 is not separated from the outer tube 2, the through holes 4 are sealed by the outer wall of the inner tube, and the situation that when the drainage process is not started, the liquid in.

In a preferred embodiment, as shown in fig. 1, the inner tube 1 and the outer tube 2 are respectively provided with scale marks 5, the scale marks 5 can be used for calibrating the depth of the inner tube 1 and the outer tube 2 extending into the brain of the patient, the approximate position of the hematoma can be estimated first, when the inner tube 1 and the outer tube 2 are close to the estimated position, the accurate position of the hematoma can be found through the endoscope observation, and on the other hand, the position of the endoscope can be calibrated, when the endoscope moves to the accurate position in the inner tube 1 to observe the hematoma, the scale marks 5 can be arranged on the inner wall of the inner tube 2 and the outer tube 2, or on the outer wall, the smoothness of the outer wall can be increased by arranging on the inner wall, the damage to the brain of the patient during the moving process of the outer tube 2 is reduced, and the scale marks are clearer by arranging on the outer wall, and.

In a preferred embodiment, as shown in fig. 1, the length of the inner tube 1 and the length of the outer tube 2 do not exceed the length of the endoscope, the endoscope does not completely extend into the inner tube, and the endoscope can be moved conveniently, so that the endoscope can observe different positions in the brain of a patient, the inconvenience caused by the fact that the endoscope completely extends into the inner tube 1 is reduced, the length of the inner tube 1 is preferably slightly longer than that of the outer tube, and the inner tube 1 can be conveniently inserted into the outer tube 2 or moved out of the outer tube 2.

In the above embodiment, the inner diameter of the inner tube 1 gradually decreases toward the closed side, the inner diameter of the closed end of the inner tube 1 is slightly smaller than the outer diameter of the endoscope, and when the endoscope moves to the closed side of the inner tube 1 in the using process, a certain gap exists between the end part of the endoscope and the inner wall of the inner tube 1, so that the interference between the endoscope and the inner tube 1 is reduced, the endoscope can observe the conditions in all directions to adjust the position of the outer tube 1, and the observation range of the endoscope is expanded.

In a preferred embodiment, the inner tube 1 and the outer tube 2 are both made of transparent materials, the transparent materials include transparent inorganic non-metallic materials, PET, Pebax, PC, PMMA, PS, PVC, TPU, FEP, PP or PA, other transparent polymer materials are also suitable in the prior art, not to mention here, all the materials have good glossiness, chemical corrosion resistance, impact resistance, and easy processing, can be hot-melt molded, injection molded, dip-molded, blow molded, and meet the requirement of environmental protection, and the inner tube 1 and the outer tube 2 made of transparent materials can reduce the condition that substances such as blood and the like are stuck outside the tube wall to cause the blurred vision of the endoscope on one hand, and improve the observation definition of the endoscope; simultaneously, inner tube 1 and outer tube 2 through the transparent material preparation itself still have certain holding power, can not flattened when stretching into the patient brain internal, and the material that has now transparent and difficult adhesion blood among the prior art can satisfy inner tube 1 and outer tube 2 user demand also be suitable for.

In a preferred embodiment, the thickness of the inner tube 1 is not more than 1mm, the thickness of the inner tube 1 is limited to reduce the decrease of the transparency of the inner tube 1 due to the increase of the thickness, the outer tube 2 is not too thick to relieve the pain of the patient, the inner tube 1 and the outer tube 2 are required to be uniform everywhere, the inner tube 1 and the outer tube 2 are required to be kept nearly free of impurities, and the manufacturing process can be performed in a vacuum environment, so that the observation error caused by the obstruction of the visual field due to the inner tube 1 and the outer tube 2 can be reduced, the observation accuracy can be improved, and the thickness of the inner tube 1 can be adjusted according to the manufacturing conditions and the using conditions.

The various embodiments listed above can be combined with each other without contradiction, and a person skilled in the art can combine the drawings and the above explanations of the embodiments as a basis for combining technical features of different embodiments.

It should be understood that the above-described embodiments are merely exemplary of the present invention, and are not intended to limit the present invention, and that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A visual drainage tube which is characterized in that:

the endoscope comprises an inner tube for moving an endoscope therein and an outer tube sleeved outside the inner tube and used for moving the inner tube and the endoscope therein, wherein the inner tube and the outer tube are in clearance fit;

the inner tube and the outer tube are transparent and visible, and the thickness of the tube wall is uniform;

one end of the inner tube is closed, and the other end of the inner tube is provided with an opening for an endoscope to enter;

the outer tube both ends all establish to the opening, the outer tube is close to inner tube closed end to the inner tube extends and with the interior outer wall of tube is closely laminated, the outer tube is close to inner tube opening one end with the connection can be dismantled to the inner tube.

2. A visual drain according to claim 1, wherein:

the outer tube and the inner tube are fixed through a luer connector, and the luer connector comprises a convex luer lock device and a concave luer lock device.

3. A visual drain according to claim 2, wherein:

the male luer lock device is arranged on the inner tube, and the female luer lock device is arranged on the outer tube.

4. A visual drain according to claim 2, wherein:

and a plurality of through holes are formed in the outer pipe at the end, tightly attached to the inner pipe, of the outer pipe in the circumferential direction.

5. A visual drain according to claim 2, wherein:

and the inner pipe and the outer pipe are respectively provided with scale marks.

6. A visual drain according to claim 2, wherein:

the length of the inner tube and the length of the outer tube do not exceed the length of the endoscope.

7. A visual drain according to claim 2, wherein:

the inner tube and the outer tube are both made of transparent materials, and the transparent materials comprise transparent inorganic non-metallic materials, PET, Pebax, PC, PMMA, PS, PVC, TPU, FEP, PP or PA.

8. A visual drain according to claim 2, wherein:

the thickness of the inner pipe is not more than 1 mm.