CN110960779A

CN110960779A - Drainage tube external member

Info

Publication number: CN110960779A
Application number: CN202010091924.2A
Authority: CN
Inventors: 冯军峰; 马羽霄; 何征晖; 惠纪元; 高国一; 江基尧
Original assignee: Renji Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Renji Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-04-07

Abstract

The invention discloses a drainage tube kit, which comprises a drainage tube and a guider, wherein the guider is arranged on the drainage tube; the guider is composed of a strip-shaped rod piece, a guide groove is arranged in the guider along the axial direction of the guider, the section of the guide groove is of an arc-shaped structure, and the guide groove penetrates through the guider along the axial direction; one end of the guider is bent to form a first guiding end, an axial external tangent of the end part of the first guiding end is intersected with an extension line of the middle section of the guider to form a first included angle, and the first included angle is 0-90 degrees; the inner diameter of the guide groove is matched with the outer diameter of the drainage tube, and the drainage tube is embedded into the guide groove of the guider. Compared with the prior art, the invention has the beneficial effects that: the direction of the drainage tube can be effectively controlled and guided by the bent guide end, guide grooves are formed by bending the two sides of the guider, and the drainage tube cannot move left and right to damage other brain tissues in the cranial cavity of a patient in the process of guiding the drainage tube.

Description

Drainage tube external member

Technical Field

The invention relates to a human living article, in particular to a medical appliance, and specifically relates to a drainage tube kit.

Background

In neurosurgical diseases, the incidence of cerebral hemorrhage and brain tumor is increased year by year, and cerebral trauma is the leading factor of death in young and strong years, and the diseases often need a neurosurgeon to perform a tube placing operation, namely, a skull hole (the diameter is generally not more than 10 mm) is formed in the skull, and a tube (a drainage tube) is placed in the skull cavity, so that blood, cerebrospinal fluid or effusion in the skull cavity is drained, and the treatment effects of removing hematoma, reducing intracranial pressure, clearing infected cerebrospinal fluid and the like are achieved.

The position and the direction of a drainage tube which is arranged in a ventricle or a hematoma cavity in a tube arranging operation are different according to different patients, a skull hole can be directly formed in the skull on the outer side of the focus, the drainage tube can be vertically punctured and arranged through the skull hole, holes cannot be directly formed in the skull on the outer side of the focus in some parts, the drainage tube is arranged after the skull hole is formed in the periphery, the angle and the direction of the arranged drainage tube are required to be adjusted, and the drainage tube can extend to the focus for subsequent operation.

The drainage tube used in the current market has higher flexibility, and the direction of placing the tube is difficult to control. The clinician can only operate by self-technology and experience, the tube placing effect is poor and the risk is high, and the injury caused by the operation sometimes occurs. On the other hand, when the lesion is deep in the skull, it is also very difficult to control the direction of the drainage tube.

Disclosure of Invention

The invention aims to overcome the defects and designs a drainage tube kit, which aims to solve the technical problem that the drainage tube placing direction is difficult to control in the operation process due to higher flexibility of the drainage tube in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

a drainage tube kit comprising a drainage tube and a guide;

the guider is composed of a strip-shaped rod piece, a guide groove is arranged in the guider along the axial direction of the guider, and the section of the guide groove is of an arc-shaped structure;

one end of the guider is bent to form a first guiding end, an axial external tangent of the end part of the first guiding end is intersected with an extension line of the middle section of the guider to form a first included angle, and the first included angle is 0-90 degrees;

the inner diameter of the guide groove is matched with the outer diameter of the drainage tube, and the drainage tube is embedded into the guide groove of the guider.

Preferably, the first included angle is any one of 0 °, 30 °, 60 °, and 90 °.

Preferably, the other end bending of director forms the second direction end, the axial external tangent line of second direction end portion with the extension line in director middle section intersects and forms the second contained angle, the second contained angle is 0~ 90.

Preferably, the second included angle is any one of 0 °, 30 °, 60 °, and 90 °.

Preferably, the sum of the first included angle and the second included angle is 90 °.

Preferably, the cross section of the guide groove is U-shaped or semicircular.

Preferably, the distance between the two farthest end points of the first guide end and the second guide end is 150mm at the maximum.

Preferably, the wall thickness of the guide is a maximum of 0.2 mm.

Preferably, the maximum value of the inner diameter of the arc-shaped structure is 5.0 mm.

Preferably, the guide groove penetrates both ends of the guide.

Compared with the prior art, the invention has the beneficial effects that: the direction of the drainage tube can be effectively controlled and guided by the bent guide end, guide grooves are formed by bending the two sides of the guider, and the drainage tube cannot move left and right to damage other brain tissues in the cranial cavity of a patient in the process of guiding the drainage tube.

Drawings

FIG. 1 is a schematic view of the working principle of a drainage tube kit according to the present invention.

FIG. 2 is a cross-sectional view of a guide of a drainage tube set provided by the present invention.

FIG. 3 is a side view of an angularly assembled guide of a drain assembly provided by the present invention.

FIG. 4 is a side view of another angle combination of a drainage catheter set provided by the present invention.

In the figure, 1-drainage tube, 2-guider, 3-guide groove, 4-first guide end, 5-second guide end, 6-first included angle and 7-second included angle;

8001-craniotomy, 8002-cranium, 8003-hematoma, 8004-cranial cavity.

Detailed Description

Example 1

Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the present invention provides a technical solution:

a drainage tube kit comprises a drainage tube 1 and a guider 2;

the guider 2 is composed of a strip-shaped rod piece, a guide groove 3 is arranged in the guider 2 along the axial direction of the guider, and the section of the guide groove 3 is of an arc-shaped structure;

one end of the guider 2 is bent to form a first guiding end 4, an axial external tangent of the end part of the first guiding end 4 is intersected with an extension line of the middle section of the guider 2 to form a first included angle 6, and the first included angle 6 is 0-90 degrees;

the inner diameter of the guide groove 3 is matched with the outer diameter of the drainage tube 1, and the drainage tube 1 is embedded into the guide groove 3 of the guider 2.

Preferably, the first included angle 6 is any one of 0 °, 30 °, 60 °, and 90 °.

Preferably, the other end of the guider 2 is bent to form a second guide end 5, a second included angle 7 is formed by intersecting an axial external tangent line at the end part of the second guide end 5 and an extension line of the middle section of the guider 2, and the second included angle 7 is 0-90 degrees.

Preferably, the second included angle 7 is any one of 0 °, 30 °, 60 °, and 90 °.

Preferably, the sum of the first included angle 6 and the second included angle 7 is 90 °.

Preferably, the guide groove 3 has a U-shaped or semicircular cross section.

Preferably, the distance between the two farthest end points of the first guiding end 4 and the second guiding end 5 is 150mm at the maximum.

Preferably, the wall thickness of the guide 2 is a maximum of 0.2 mm.

Preferably, the guide groove 3 penetrates both ends of the guide 2.

The working principle is as follows: the method comprises the steps of determining the position of a focus in a cranial cavity 8004 of a patient, taking hematoma 8003 as an example, forming a cranial hole 8001 in a skull 8002 on the outer side of the focus, extending a guider 2 into the cranial cavity 8004 from the cranial hole 8001, extending a first guide end 4 to the hematoma 8003, embedding a drainage tube 1 into a guide groove 3 and extending into the cranial cavity 8004 along the guide groove 3, enabling one end of the drainage tube 1 to reach the hematoma 8003, conducting drainage operation, and guiding the hematoma 8003 in the cranial cavity 8004 of the patient to flow out of the body along the drainage tube 1, so that the treatment purpose is achieved.

One guider 2 is provided with a first guiding end 4 and a second guiding end 5, so that the guiding angle can be changed without changing the guider 2, and the use is more convenient;

the first included angle 6 and the second included angle 7 are any one of 0 degree, 30 degrees, 60 degrees and 90 degrees, the 4 degrees can adapt to the needs of most diseases, and guide ends with different angles are selected for use according to the treatment needs of different diseases;

the section of the guide groove 3 is U-shaped or semicircular, and the pipe walls on the two sides ensure that the drainage pipe 1 in the guide groove 3 cannot be separated from the guider 2 from left and right, so that a better guiding effect is achieved;

the sum of the first included angle 6 and the second included angle 7 is 90 degrees, so that the degrees of the two included angles are different, and repetition is not formed;

the maximum value of the wall thickness of the guider 2 is 0.2mm, the maximum value of the inner diameter of the arc-shaped structure is 5.0mm, the size is not too large, and the guider is more suitable for the size of a common skull hole 8001;

the guide groove 3 runs through the two ends of the guider 2, and the drainage tube 1 extends into the other end of the guider 2 from one end of the guider 2 along the guide groove 3 to enter the cranial cavity 8004 of the patient.

Claims

1. A drainage tube kit, its characterized in that: comprises a drainage tube (1) and a guider (2);

the guider (2) is composed of a strip-shaped rod piece, a guide groove (3) is arranged in the guider (2) along the axial direction of the guider, and the section of the guide groove (3) is of an arc-shaped structure;

one end of the guider (2) is bent to form a first guiding end (4), an axial external tangent of the end part of the first guiding end (4) is intersected with an extension line of the middle section of the guider (2) to form a first included angle (6), and the first included angle (6) is 0-90 degrees;

the inner diameter of the guide groove (3) is matched with the outer diameter of the drainage tube (1), and the drainage tube (1) is embedded into the guide groove (3) of the guider (2).

2. A drain tube kit according to claim 1, wherein: the first included angle (6) is any one of 0 degree, 30 degrees, 60 degrees and 90 degrees.

3. A drain tube kit according to claim 1, wherein: the other end bending of director (2) forms second direction end (5), the axial external tangent line of second direction end (5) tip with the extension line in director (2) middle section intersects and forms second contained angle (7), second contained angle (7) are 0~ 90.

4. A drain tube kit according to claim 3, wherein: the second included angle (7) is any one of 0 degree, 30 degrees, 60 degrees and 90 degrees.

5. A drain tube kit according to claim 3, wherein: the sum of the first included angle (6) and the second included angle (7) is 90 degrees.

6. A drain tube kit according to claim 1, wherein: the section of the guide groove (3) is U-shaped or semicircular.

7. A drain tube kit according to claim 3, wherein: the distance between the two farthest end points of the first guide end (4) and the second guide end (5) is 150mm at the maximum.

8. A drain tube kit according to claim 1, wherein: the wall thickness of the guide (2) is 0.2mm at the maximum.

9. A drain tube kit according to claim 1, wherein: the maximum value of the inner diameter of the arc-shaped structure is 5.0 mm.

10. A drain tube kit according to claim 1, wherein: the guide groove (3) penetrates through two ends of the guide device (2).