CN214713777U

CN214713777U - Tearable sheath tube

Info

Publication number: CN214713777U
Application number: CN202023203574.9U
Authority: CN
Inventors: 沈军; 陈燕琼; 覃东柏
Original assignee: Shanghai Rongyuan Fluoroplastic Products Co ltd
Current assignee: Shanghai Rongyuan Fluoroplastic Products Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-16
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a technical field of sheath pipe discloses a can tear sheath pipe, including a pipe body, the outer wall of body has seted up along its axis direction and has torn the groove, tear the groove and have two and set up about the axis symmetry of body, the tip shaping of body has the reservation and tears the piece, the reservation tears the piece and has two and set up about the line symmetry in two tearing grooves, the reservation tears the piece and has seted up the mounting hole, wear to be equipped with in the mounting hole and tear the ring. This application is through setting up the tear ring, establishes the tear ring cover on the finger, and the application of force of being convenient for avoids finger and body direct contact, the phenomenon that can not appear skidding.

Description

Tearable sheath tube

Technical Field

The application relates to the field of sheath tubes, in particular to a tearable sheath tube.

Background

Interventional therapy is a new medical technique that has developed rapidly in recent years. It is mainly characterized by that it utilizes the monitoring of X-ray and ultrasonic equipment to insert the catheter into human body to implement diagnosis, treatment and clinical monitoring of diseases. The catheter for interventional therapy is a system consisting of an outer sheath, a middle dilator and an inner soft steel guide wire.

The technical method of catheter intubation comprises the following steps: after the puncture needle enters a blood vessel through the skin, the guide wire is sent into the blood vessel from the needle tail, after the guide wire enters the blood vessel for a certain length, the puncture needle is pulled out, the dilator and the sheath tube are inserted into the preset position of the blood vessel through the tail part of the guide wire, under the guide of the guide wire, the dilator and the sheath tube enter the preset position of the blood vessel, and the guide wire and the dilator are withdrawn. Various diagnostic and therapeutic catheters can now be introduced and replaced through the sheath remaining in the vessel.

When the complex interventional therapy is carried out, after the sheath tube is used up, the sheath tube needs to be withdrawn from the body, and then a back object blocks the withdrawal path, or the sheath tube cannot be directly taken out of the body when a catheter is arranged in the sheath tube in a penetrating way. In view of the above problems, in the related art, a tearing groove is often formed in the outer wall of the sheath rope along the axial direction thereof, and the sheath rope can be taken out by tearing the sheath.

However, the inventor finds that most of sheath tubes used in the related art are made of high polymer materials, the surface is very smooth, and when people tear the sheath tubes, the sheath tubes often slip, so that the tearing is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to facilitate tearing the sheath, the present application provides a tearable sheath.

The application provides a can tear sheath pipe adopts following technical scheme:

the utility model provides a can tear sheath pipe, includes the body, the outer wall of body has seted up along its axis direction tears the groove, tear the groove and have two and set up about the axis symmetry of body, the tip shaping of body has the reservation to tear the piece, the reservation tears the piece and has two and set up about the line symmetry in two tearing grooves, the reservation tears the piece and has seted up the mounting hole, wear to be equipped with in the mounting hole and tear the ring.

Through adopting above-mentioned technical scheme, when the sheath pipe no longer used, need extract the body from the human body, the doctor establishes the tear ring cover on the finger, drags to both sides again, makes the body tear along tearing the groove. The tearing ring is sleeved on the finger, so that force application is facilitated, the direct contact between the finger and the pipe body is avoided, and the phenomenon of slipping is avoided.

Optionally, a metal wrapping ring is fixed on the hole wall of the mounting hole, and the tearing ring penetrates through the metal wrapping ring.

By adopting the technical scheme, the metal wrapping ring is arranged on the hole wall of the mounting hole, the tensile strength of the reserved tearing piece is improved by the metal wrapping ring, and the problem of damage to the hole wall of the mounting hole is reduced.

Optionally, the pipe body includes the inserted tube and turns over a pipe, the tip of inserted tube and the tip integrated into one piece setting of turning over a pipe, turn over a pipe cladding on the periphery wall of inserted tube tip, the reservation is torn the piece shaping and is turning over the other end of a pipe.

Through adopting above-mentioned technical scheme, divide into the body and insert the pipe and turn over a pipe to turn over a pipe cladding on the perisporium of inserting the pipe tip, make turn over a pipe and can expose with the fashioned position of insert pipe looks, the fashioned position between the two forms circular shape port promptly, and other equipment pipelines of being convenient for let in the insert pipe.

Optionally, one end of the reserved tearing piece, which is far away from the folded tube, is obliquely arranged towards the outer peripheral side of the folded tube.

Through adopting above-mentioned technical scheme, tear the piece in advance and keep away from the one end of rolling over a pipe and incline to set up towards the periphery side that turns over a pipe, the finger can conveniently pass more and tear the ring, and the design is more humanized, and it is more convenient to use.

Optionally, the diameter of the insertion tube decreases gradually towards the end of the insertion tube that is away from the folded tube.

Through adopting above-mentioned technical scheme, the one end that the diameter of inserting the pipe is close to the pipe that turns over is set up to the form that reduces gradually towards its one end of keeping away from the pipe that turns over, and the whole shape of body is the toper setting promptly, is more convenient for insert the body in the human body.

Optionally, the tearing groove gradually decreases in width along the direction from the outer wall of the pipe body to the inner wall of the pipe body.

Through adopting above-mentioned technical scheme, the groove width of tearing the groove sets up to the direction that the outer wall of edge body towards the inner wall of body reduces gradually, makes the body tear easier, and the power of tearing concentrates more.

Optionally, a reserved tearing opening is formed between the two reserved tearing pieces in the direction towards the tearing groove.

Through adopting above-mentioned technical scheme, the setting of tearing the mouth is reserved, can make the body more easily tear along tearing the groove, and it is more convenient to use.

Optionally, the outer wall of the pipe body is provided with scale marks.

Through adopting above-mentioned technical scheme, the scale mark is convenient for the doctor can observe the body directly perceivedly and insert the degree of depth in the human body.

In summary, the present application includes at least one of the following beneficial technical effects:

the tearing ring is arranged and sleeved on the finger, so that force can be applied conveniently, the direct contact between the finger and the pipe body is avoided, and the phenomenon of slipping is avoided;

through the metal wrap ring arranged on the hole wall of the mounting hole, the metal wrap ring improves the tensile strength of the reserved tearing piece, and the problem of book damage on the hole wall of the mounting hole is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Description of reference numerals: 1. a pipe body; 11. an insertion tube; 12. folding the tube; 2. a tearing groove; 3. reserving a tearing piece; 4. reserving a tearing opening; 5. mounting holes; 6. a metal wrap ring; 7. a tear ring; 8. scale lines are marked.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a tearable sheath. Referring to fig. 1, the tearable sheath comprises a tubular body 1 which is cylindrical as a whole, wherein the material of the tubular body 1 is PTFE. The outer wall of body 1 has along its axis direction shaping to tear groove 2, tears groove 2 and along the outer wall of body 1 towards the direction groove width of the inner wall of body 1 and reduce gradually, tears the quantity of groove 2 and be two, and sets up about the central axis symmetry of body 1. When tearing body 1, body 1 tears along tearing the direction of groove 2, tears the integrality when groove 2 has improved tearing, makes body 1 be difficult for taking place the skew at the tearing in-process.

The tube body 1 is composed of an insertion tube 11 and a turnover tube 12, the end part of the insertion tube 11 and the end part of the turnover tube 12 are integrally formed, and the turnover tube 12 is coated on the outer peripheral wall of the end part of the insertion tube 11. The other end of the turnover pipe 12 is formed with two reserved tearing pieces 3, and the two reserved tearing pieces 3 are symmetrically arranged around the connecting line of the two tearing grooves 2. Two reservation are torn the direction of 2 of tearing the groove and are formed with reservation between the piece 3 and tear mouthful 4, reserve and tear mouthful 4 and be convenient for body 1 and tear along tearing groove 2, it is more convenient to use.

The reserved tearing piece 3 is provided with a mounting hole 5, a metal wrapping ring 6 is fixedly clamped on the hole wall of the mounting hole 5, a tearing ring 7 penetrates through the metal wrapping ring 6, the tearing ring 7 can be made of stainless steel, and the diameter of the tearing ring 7 can accommodate a finger of a normal person to pass through. When the tube body 1 is torn, a doctor can firstly fold the folding tube 12 back to enable the folding tube 12 and the insertion tube 11 to be positioned on the same axis, then sleeve the tearing ring 7 on the fingers, and then pull the two sides to enable the tube body 1 to be torn along the tearing groove 2. The tearing ring 7 is sleeved on the finger, so that force application is facilitated, the direct contact between the finger and the pipe body 1 is avoided, and the phenomenon of slipping is avoided.

The diameter of the insertion tube 11 is gradually reduced from one side of the insertion tube close to the turnover tube 12 to one side of the insertion tube far away from the turnover tube 12, and the arrangement structure is convenient for the insertion tube 11 to be inserted into a human body and is more convenient to use. The outer wall of the insertion tube 11 is provided with scale marks 8 along the axial direction, and the scale marks 8 are used for marking the depth of the insertion tube 11 inserted into the human body.

The implementation principle of the tearable sheath tube in the embodiment of the application is as follows: when the sheath tube is not used any more, the tube body 1 needs to be pulled out of a human body, a doctor can firstly fold the folding tube 12 back to enable the folding tube 12 and the insertion tube 11 to be positioned on the same axis, then the tearing ring 7 is sleeved on the fingers, and then the tearing ring is pulled to two sides to enable the tube body 1 to be torn along the tearing groove 2. The tearing ring 7 is sleeved on the finger, so that force application is facilitated, the direct contact between the finger and the pipe body 1 is avoided, and the phenomenon of slipping is avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A tearable sheath tube, characterized in that: the outer wall of body (1) has been seted up along its axis direction and has been torn groove (2), tear groove (2) have two and set up about the axis symmetry of body (1), the tip shaping of body (1) has the reservation and tears piece (3), reserve and tear piece (3) have two and set up about the line symmetry of two tearing grooves (2), reserve and tear and have seted up mounting hole (5) on piece (3), wear to be equipped with in mounting hole (5) and tear ring (7).

2. The tearable sheath according to claim 1, wherein: the wall of the mounting hole (5) is fixedly provided with a metal wrapping ring (6), and the tearing ring (7) penetrates through the metal wrapping ring (6).

3. The tearable sheath according to claim 1, wherein: the pipe body (1) comprises an inserting pipe (11) and a turnover pipe (12), the end of the inserting pipe (11) and the end of the turnover pipe (12) are integrally formed, the turnover pipe (12) is coated on the outer peripheral wall of the end of the inserting pipe (11), and the reserved tearing piece (3) is formed at the other end of the turnover pipe (12).

4. The tearable sheath according to claim 3, wherein: the reserved tearing piece (3) is obliquely arranged towards the outer peripheral side of the turnover pipe (12) at one end far away from the turnover pipe (12).

5. The tearable sheath according to claim 3, wherein: the diameter of one end of the insertion tube (11) close to the turnover tube (12) is gradually reduced towards the end of the insertion tube far away from the turnover tube (12).

6. The tearable sheath according to claim 1, wherein: the tearing groove (2) gradually reduces the groove width along the direction from the outer wall of the pipe body (1) to the inner wall of the pipe body (1).

7. The tearable sheath according to claim 1, wherein: a reserved tearing opening (4) is formed between the two reserved tearing pieces (3) towards the tearing groove (2).

8. The tearable sheath according to claim 1, wherein: the outer wall of the pipe body (1) is provided with scale marks (8).