CN115671505B

CN115671505B - Contrast guide wire sleeving device

Info

Publication number: CN115671505B
Application number: CN202211358901.9A
Authority: CN
Inventors: 刘津莹; 宋福生; 张艳琴; 张磊; 康永锦
Original assignee: Hebei Kangyu Medical Instrument Co ltd
Current assignee: Hebei Kangyu Medical Instrument Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-04-28
Anticipated expiration: 2042-11-01
Also published as: CN115671505A

Abstract

The invention discloses a contrast guide wire sleeving device, which comprises a sheath tube and a guide tube penetrating through the sheath tube, wherein an annular groove is formed in the inner wall of the sheath tube, a plurality of micro-bulge parts are arranged on the upper array of the annular groove, every two adjacent micro-bulge parts are separated by 12-18 degrees, an elastic ring is sleeved on the guide tube, the elastic ring rotates to be sleeved in the annular groove, an elastic bulge rib is arranged on the elastic ring, and in the rotating process of the elastic ring, the elastic bulge rib deforms and extrudes to cross the micro-bulge parts.

Description

Contrast guide wire sleeving device

Technical Field

The invention relates to the technical field of medical equipment, in particular to a contrast guide wire sleeving device.

Background

Coronary angiography is a common and accurate method for diagnosing coronary atherosclerotic heart disease (coronary heart disease), and has the main effects of evaluating the running, quantity and deformity of coronary blood vessels, generally performing left coronary angiography and right coronary angiography in the process of coronary angiography, basically operating to rotate a catheter by the right hand when the catheter enters a human body, feeding the catheter by the left hand, rotating the catheter in the same direction while feeding the catheter, avoiding the catheter from being broken or knotted to damage the blood vessels, generally performing multiple smoking (releasing contrast agent) at coronary opening positions, acquiring less, observing electrocardiographic monitoring and pressure of a patient, and observing a patient contrast image to know pathological conditions.

The utility model provides a radial artery coronary angiography catheter, is formed by three sections of connection of first pipe, second pipe and head pipe as the publication number is CN105498067A, and publication date is 20 of 2016, and the name is radial artery coronary angiography catheter and method of use, first pipe is the straight tube, there are two 135 crooked, the one end that is connected with head pipe is perpendicular with first pipe in the one end that is connected with first pipe of second pipe, head pipe wholly is anti-S shape, is equipped with the side opening on the pipe wall, its characterized in that: the first catheter is of an outer, middle and inner three-layer structure, the inner and outer layers are made of nylon, the middle layer is a metal woven mesh, the second catheter is made of nylon plastic, and the head catheter is made of soft nylon. The head catheter is made of soft nylon, has a soft structure, can reduce the damage of the head end of the catheter to blood vessels in the process of entering the coronary artery and the radiography process, adopts an inverse S-shaped structural design, is easier to enter the right coronary artery, avoids entering the branches of the right coronary artery, and avoids serious complications. The second conduit is made of nylon plastic and has moderate hardness as a connecting transition section of the first conduit and the head conduit. The radial artery coronary angiography catheter using method utilizes the guiding function of the sheath tube and the guide wire on the coronary angiography catheter, and the catheter easily enters the coronary artery, so that the operation difficulty and the operation complications are reduced.

In the prior art, when left crown radiography is performed, the catheter needs to be rotated in a right position gently to align the Y-shaped position of the blood vessel, at this time, the smoke (contrast agent injection) is generated at the opening of the left crown by rotating about 15 degrees each time according to experience, the operation time is obviously prolonged due to the fact that the rotation is too much or large in angle (a certain time is required for the reaction from the proximal end to the distal end), the blood vessel wall is damaged due to the fact that the excessive rotation can only be corrected through repeated training of doctors in the prior art, the position is completely dependent on the experience of the doctors, and no structural preventive technology exists.

Disclosure of Invention

The invention aims to provide a contrast guide wire sleeving device which solves the defects in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a radiography seal wire suit device, includes the sheath pipe and wears to establish the intraductal pipe of sheath, be provided with the ring channel on the sheath pipe inner wall, the last array of ring channel is provided with a plurality of miniature bellying, adjacent two miniature bellying interval 12-18 degrees, the last elastic ring that has cup jointed of pipe, the elastic ring rotate the endotheca in the ring channel, be provided with the elastic bulge rib on the elastic ring, the rotation in-process of elastic ring, the elastic bulge rib can warp the extrusion in order to cross miniature bellying.

According to the contrast guide wire sleeving device, the elastic ring comprises the outer ring body and the elastic inner cylinder sleeved on the outer ring body, and the elastic protruding rib is arranged on the elastic inner cylinder.

In the contrast guide wire sleeving device, the elastic inner cylinder is provided with the axial extension part, and the elastic inner cylinder extends out of the sheath tube through the extension part.

According to the contrast guide wire sleeving device, the penetrating groove is formed in the inner wall of the elastic ring, and the elastic inner cylinder rotates relative to the outer ring body so that the elastic protruding rib protrudes out of the outer ring body to extrude the micro protruding portion.

According to the contrast guide wire sleeving device, the elastic protruding ribs are hemispheres, and the bottoms of the hemispheres are arc-shaped surfaces and are attached to the outer wall of the elastic inner cylinder.

According to the contrast guide wire sleeving device, the hemispherical body is connected to the elastic inner cylinder through the connecting piece on one hemispherical surface side of the hemispherical body.

According to the contrast guide wire sleeving device, the groove wall on one side, which is away from the connecting piece, of the penetrating groove is a guide inclined surface.

In the contrast guide wire sleeving device, the wedge-shaped surface is arranged on one side, facing the guiding inclined surface, of the hemispheroids.

In the contrast guide wire sleeving device, two adjacent micro-convex parts are separated by 15 degrees.

In the contrast guide wire sleeving device, the part of the sheath tube provided with the annular groove is made of elastic materials.

In the technical scheme, the doctor can drive the elastic ring to rotate when rotating the catheter, the elastic ring can drive the elastic protruding ribs to rotate in the annular groove when rotating, a plurality of micro protruding parts are arranged in the annular groove, two adjacent micro protruding parts are separated by 12-18 degrees, the elastic protruding ribs can deform and squeeze to pass through the micro protruding parts in the rotating process of the annular groove, and at the moment, the doctor can be given an obvious hand feeling to know that the elastic protruding ribs pass through the micro protruding parts, so that the doctor knows the rotating angle of the doctor in the operating process to ensure that the operating efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of a contrast guidewire kit according to an embodiment of the present invention;

FIG. 2 is a schematic view of an internal sheath structure of a contrast guidewire sheath device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a contrast guidewire packaging device according to yet another embodiment of the present invention;

FIG. 4 is a schematic view showing the cooperation of the elastic inner cylinder and the outer ring in a state according to still another embodiment of the present invention;

FIG. 5 is a schematic view showing the cooperation of the elastic inner cylinder and the outer ring in another state according to still another embodiment of the present invention;

FIG. 6 is a cross-sectional view of a contrast guidewire set assembly according to yet another embodiment of the present invention;

FIG. 7 is a partial view of an outer ring provided by yet another embodiment of the present invention.

Reference numerals illustrate:

1. a sheath; 2. a conduit; 3. an elastic ring; 4. an annular groove; 5. an elastic raised rib; 6. a micro-protrusion; 7. an elastic inner cylinder; 8. a baffle ring; 9. a boss; 10. a sheath channel; 11. a deformation cylinder; 12. an outer ring body; 12.1, a through slot; 12.2, vertical grooves.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

In various embodiments of the present invention, "proximal" and "distal" are relative orientations, relative positions, directions of elements or actions relative to one another from the perspective of a physician using the medical device, although "proximal" and "distal" are not intended to be limiting, and "proximal" generally refers to an end of the medical device that is proximal to the physician during normal operation, and "distal" generally refers to an end that is distal from the physician first into the patient, the forward and reverse rotations referred to herein are not in a trivial sense, but are rotation in two opposite directions.

As shown in fig. 1-7, the contrast guidewire sleeving device provided by the embodiment of the invention comprises a sheath tube 1 and a catheter 2 which is sleeved in the sheath tube 1 in a sliding manner, wherein an annular groove 4 is formed in the inner wall of the sheath tube 1, a plurality of micro-protruding parts 6 are arranged on the upper array of the annular groove 4, two adjacent micro-protruding parts 6 are separated by 12-18 degrees, an elastic ring 3 is sleeved on the catheter 2, the elastic ring 3 is sleeved in the annular groove 4 in a rotating manner, an elastic protruding rib 5 is arranged on the elastic ring 3, and in the rotating process of the elastic ring 3, the elastic protruding rib 5 is deformed and extruded by the micro-protruding parts 6 to cross the micro-protruding parts 6.

Specifically, as shown in fig. 1, the distal end of the sheath tube 1 (i.e. the end entering the human body) is used for being placed in an artery, the proximal end of the sheath tube 1 is located outside the body, the catheter 2 enters the human body blood vessel through the sheath tube 1, an annular groove 4 is arranged on the inner wall of the proximal end of the sheath tube 1, the annular groove 4 is an annular groove 4 body adapting to the inner wall of the sheath tube 1, a plurality of micro-protrusions 6 are arranged on the annular groove 4 in an array manner, the micro-protrusions 6 are in a micro-annular protrusion shape and have elasticity, a plurality of e.g. 24 micro-protrusions 6 are arranged on the annular groove 4, two adjacent micro-protrusions 6 are spaced by 12-18 degrees, when 24 are spaced by 15 degrees, an elastic ring 3 is sleeved on the catheter 2, the elastic ring 3 is made of elastic material, the elastic ring 3 is also in a circular shape adapting to the shape of the catheter 2, the radial dimension of the elastic ring 3 is arranged to be elastically sleeved on the catheter 2, that is, the radial dimension of the inner wall of the elastic ring 3 is smaller than the radial dimension of the outer wall of the catheter 2, so that when the catheter 2 is rotated, the doctor rotates the elastic ring 3 in the same direction, and the elastic ring 3 is limited by the annular groove 4 in the axial direction, so that the elastic ring 3 cannot move along the catheter 2 in the axial direction, that is, the catheter 2 and the elastic ring 3 synchronously rotate in the rotation process, but relatively slide in the axial direction, the elastic ring 3 is further provided with an elastic raised rib 5, the elastic raised rib 5 is made of soft deformable material and is used for providing a resistance feel, the outer circle part of the elastic raised rib 5 is larger than the inner circle part of the micro-raised part 6, the catheter 2 drives the elastic ring 3 to rotate in the annular groove 4 when rotating, the elastic raised rib 5 on the elastic ring 3 is also driven to rotate in the annular groove 4 when the catheter 2 rotates, obviously, in the rotating process of the elastic raised rib 5 in the annular groove 4, the elastic raised rib 5 passes through the micro-raised part 6, because both the elastic raised rib 5 and the micro-raised part 6 have elasticity, the elastic raised rib 5 can generate extrusion deformation so as to pass through the micro-raised part 6, when passing through the micro-raised part 6, a certain resistance is generated due to the extrusion deformation of the elastic raised rib 5 and the micro-raised part 6, a doctor can know that the elastic raised rib 5 passes through the micro-raised part 6 with obvious hand feeling, and two adjacent micro-raised parts 6 are separated by 12-18 degrees, so that the doctor can know that the rotating angle of the doctor rotates once is 12-18 degrees, and the rotation can be stopped when the doctor passes through the micro-raised part 6 each time, and the rotation can be continued after the rotation of the catheter 2 head is seen through the instrument due to the relation of torque force and torque delay.

According to the contrast guide wire sleeving device provided by the embodiment of the invention, when a doctor rotates the catheter 2, the elastic ring 3 is driven to rotate, the elastic ring 3 drives the elastic raised ribs 5 to rotate in the annular groove 4, a plurality of micro raised parts 6 are arranged in the annular groove 4, two adjacent micro raised parts 6 are spaced by 12-18 degrees, preferably 15 degrees, the elastic raised ribs 5 are deformed and extruded to pass through the micro raised parts 6 in the rotating process of the annular groove 4, and at the moment, a remarkable hand feeling is given to the doctor to know that the elastic raised ribs 5 pass through the micro raised parts 6, so that the doctor knows the rotating angle of the doctor in the operating process to ensure that the operating efficiency is improved.

In a preferred embodiment of the present invention, in an initial state, the elastic raised rib 5 is fixedly connected to one of the micro raised parts 6, the elastic raised rib 5 is connected to the micro raised part 6 through a breaking part, and the breaking part has a radial dimension smaller than that of the elastic raised rib 5 and the micro raised part 6, which has the function of connecting the elastic ring 3 and the sheath tube 1 through the breaking part before use, preventing random shaking of the elastic ring and the sheath tube, and when in use, the tearing part can be torn by slightly applying force through a catheter, so that the sheath tube can be normally used.

In one embodiment of the present invention, as shown in fig. 3, the elastic ring 3 is a composite structure, and includes an outer ring body 12 and an elastic inner cylinder 7 sleeved in the outer ring body 12, at this time, the catheter is sleeved in the elastic inner cylinder 7, the material of the elastic inner cylinder 7 is an elastic material, one end of the elastic inner cylinder 7 is located in a direction extending out of the sheath tube 1, so that the elastic inner cylinder 7 can be manually rotated, the elastic inner cylinder 7 is provided with the elastic protruding rib 5, the elastic protruding rib 5 includes a hemisphere, the hemisphere has an arc surface with a hemispherical surface and a bottom, the hemisphere is attached to the outer wall of the elastic inner cylinder at one side of the arc surface, one side of the hemispherical surface of the hemisphere is connected to the outer wall of the elastic inner cylinder 7 through a connecting portion, at this time, the outer ring body 12 is provided with a through groove 12.1, the wall surface of the through groove 12.1 is inclined towards the hemispherical surface, at this time, the hemisphere is located in the through groove, and does not protrude out of the outer ring body 12, at this time, at the second state, the elastic inner cylinder 7 is rotated, the hemisphere abuts against the wall surface of the through groove and is not attached to the outer ring body 12, and then slides along the outer wall surface, and is attached to the other end of the hemispherical surface, which is attached to the outer ring body, and gradually attached to the outer ring body. So can make the elastic bulge rib 5 switch between first state and second state through rotating elastic inner tube 7, in first state, elastic bulge rib 5 does not contact with miniature bellying 6, reduces the resistance when the pipe normally rotates, only reentry second state when need carrying out circumference spacing.

In yet another embodiment of the present invention, as shown in fig. 5, a deformation tube 11 is disposed on the inner wall of the sheath tube 1 along the distal end of the elastic ring 3, the deformation tube 11 is sleeved in the sheath tube 1, the elastic ring 3 is disposed at one end of the proximal end of the sheath tube, the deformation tube is disposed at one side of the distal end of the sheath tube, a micro-protrusion ring 9 is disposed on the outer wall of the deformation tube, meanwhile, a plurality of sheath tube grooves 10 are sequentially disposed on the inner wall of the sheath tube 1 along the axial direction, the cooperation of the micro-protrusion ring 9 and the sheath tube grooves 10 is identical to the cooperation of the elastic protrusion ribs 5 and the micro-protrusion parts 6, that is, the micro-protrusion ring 9 has an elastic structure, which can smoothly enter and leave the sheath tube grooves 10, but can generate obvious hand feeling when entering and leaving, obviously, the catheter 2 and the deformation tube 11 are in a clearance fit in a daily state, and do not move synchronously, further in this embodiment, a vertical groove is provided on the inner wall of the outer ring 12, the original through groove 12.1 is a transverse groove (the radial plane of the outer ring 12 is transverse), one end of the transverse groove is a through groove, one end of the transverse groove does not radially penetrate the outer ring 12 and is communicated with the vertical groove (the axis of the conduit is vertical), the vertical groove 12.2 axially penetrates the outer ring 12, and the through groove radially penetrates the outer ring 12, when the axial position control of the conduit 2 is required, an operator manually rotates the elastic inner cylinder 7 to enable the hemispheres of the elastic raised ribs 5 to enter the vertical groove, then pushes the elastic inner cylinder 7 axially and distally, the elastic inner cylinder 7 drives the elastic raised ribs 5 to enter the gap between the deformation cylinder 11 and the conduit together, the deformation of the elastic inner cylinder 7 and the elastic raised ribs 5 are relied on to connect the deformation cylinder 11, the elastic inner cylinder 7 and the conduit together, at this time, the catheter 2 is axially moved so that the elastic inner cylinder 7 moves synchronously with the deformation cylinder 11, namely, a specific moving distance can be sensed through the cooperation of the micro-bulge loop 9 and the sheath tube groove 10, and the distance between the adjacent sheath tube grooves 10 can be marked and informed to a doctor. The axial movement distance of the catheter is required to be sensed, wherein the left coronary artery and the right coronary artery are provided with a plurality of branch ports during coronary angiography, the individual difference is large, and the walking direction is different, wherein if the sinus node is wrongly entered for radiography during movement, ventricular fibrillation is generated directly with a certain probability, and the axial movement distance cannot be precisely controlled, which is one of the core reasons, and is a point which is easy for a doctor with less experience to miss, so that the probability of ventricular fibrillation is reduced by precisely controlling the axial movement distance through the deformation cylinder 11 when the procedure is encountered during each operation.

In the embodiments provided by the invention, for the relative movement of the outer ring body 12, the elastic inner cylinder 7, the guide pipe and the deformation cylinder, preferably, the part of the sheath pipe provided with the micro-bulge 6 is made of elastic materials, so that when the elastic inner cylinder 7 is rotated, a doctor presses the part of the sheath pipe provided with the micro-bulge 6 by one hand to limit the outer ring body 12, and then the corresponding adjustment can be realized by rotating the elastic inner cylinder. Meanwhile, if the elastic inner cylinder 7 is required to be separated from the deformation cylinder, the guide pipe can be limited by one hand, the other hand can forcedly axially move the elastic inner cylinder 7, and each part is maintained by completely relying on elastic deformation force and friction force, so that one is forcedly limited and the other is driven to realize separation or relative movement.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. The radiography guide wire sleeving device comprises a sheath tube and a guide tube penetrating through the sheath tube, and is characterized in that an annular groove is formed in the inner wall of the sheath tube, a plurality of micro-protruding parts are arranged on the upper array of the annular groove, every two adjacent micro-protruding parts are separated by 12-18 degrees, an elastic ring is sleeved on the guide tube, the elastic ring is rotationally sleeved in the annular groove, an elastic protruding rib is arranged on the elastic ring, and in the rotation process of the elastic ring, the elastic protruding rib deforms and extrudes to cross the micro-protruding parts;

the elastic ring comprises an outer ring body and an elastic inner cylinder sleeved on the outer ring body, the elastic inner cylinder is provided with an elastic protruding rib, the elastic inner cylinder is provided with an axial extension part, the elastic inner cylinder extends out of the sheath tube through the extension part, a through groove is formed in the inner wall of the elastic ring, the elastic inner cylinder rotates relative to the outer ring body so that the elastic protruding rib protrudes out of the outer ring body to extrude the micro protruding part, the elastic protruding rib is a hemispherical body, the bottom surface of the hemispherical body is an arc-shaped surface and is attached to the outer wall of the elastic inner cylinder, the hemispherical body is connected to the elastic inner cylinder through a connecting piece on one hemispherical side of the hemispherical body, and the groove wall on one side, deviating from the connecting piece, of the through groove is a guide inclined surface;

under the first state, the hemisphere is arranged in the penetrating groove, the hemisphere does not protrude out of the outer ring body, under the second state, the elastic inner cylinder is rotated, at the moment, the hemisphere is abutted against the wall surface of the penetrating groove and slides upwards along the wall surface, namely, the hemisphere is not attached to the outer wall of the elastic inner cylinder any more, the hemisphere is connected with the elastic inner cylinder only by means of the connecting part at the other end, and the hemisphere gradually protrudes out of the outer ring body due to the guiding of the wall surface of the penetrating groove, so that the elastic protruding rib can be switched between the first state and the second state by rotating the elastic inner cylinder, and under the first state, the elastic protruding rib is not contacted with the miniature protruding part, and only enters the second state when circumferential limiting is needed.

2. The contrast guidewire set as defined in claim 1, wherein a wedge surface is provided on a side of the hemisphere facing the guide ramp.

3. The contrast guidewire set of claim 1, wherein adjacent ones of the microprotrusions are spaced 15 degrees apart.

4. The contrast guidewire set as defined in claim 1, wherein the portion of the sheath having the annular groove is of an elastomeric material.