CN115105726B - Guide wire auxiliary connection device and use method - Google Patents
Guide wire auxiliary connection device and use method Download PDFInfo
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- CN115105726B CN115105726B CN202210770985.0A CN202210770985A CN115105726B CN 115105726 B CN115105726 B CN 115105726B CN 202210770985 A CN202210770985 A CN 202210770985A CN 115105726 B CN115105726 B CN 115105726B
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- steel needle
- wire
- guide wire
- protective steel
- balloon
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 115
- 239000010959 steel Substances 0.000 claims abstract description 115
- 230000001681 protective effect Effects 0.000 claims abstract description 54
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000005498 polishing Methods 0.000 claims description 10
- 210000005077 saccule Anatomy 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 238000002407 reforming Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 230000001225 therapeutic effect Effects 0.000 description 4
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- KKJUPNGICOCCDW-UHFFFAOYSA-N 7-N,N-Dimethylamino-1,2,3,4,5-pentathiocyclooctane Chemical compound CN(C)C1CSSSSSC1 KKJUPNGICOCCDW-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/09041—Mechanisms for insertion of guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The application relates to the technical field of medical instruments, in particular to a guide wire auxiliary connecting device and a using method. The guide wire auxiliary connecting device comprises a protective steel needle and a guide wire; the protective steel needle is arranged in the catheter in a penetrating way and extends out of the far end of the balloon, the tail end of the guide wire is connected with a guide wire threading wire, and a groove which can be used for hooking the guide wire threading wire is formed in the extending part of the balloon. Through reforming transform the protection steel needle and the seal wire that originally use in the sacculus operation, make it can be quick pass the sacculus pointed end with the seal wire under the condition of not increasing new part to wear out by the seal wire hole of pipe, effectively improved the operating efficiency of seal wire in the sacculus through connection.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a guide wire auxiliary connecting device and a using method.
Background
During the vascular interventional treatment, the track is established by the therapeutic apparatus through the guide wire, and the balloon and the stent are conveyed to the lesion site to be treated, and the operation is mainly manually completed by a treating doctor. In view of the fact that the diameter of the guide wire is generally smaller (below 0.5 mm), the inner diameter of the conveying catheter is also smaller, the requirement on operation accuracy is high in the connecting process, and the operation efficiency of the interventional treatment process is affected.
The traditional guide wire passes through the balloon for connecting operation, and a doctor is required to hold the proximal end neg of the balloon, and as HP, PTCA, SDS-2 and DCAB balloon body parts are heavy and the balloon body is longer, the guide wire is difficult to pass through the balloon, so that the difficulty of the operation of the doctor is increased. And meanwhile, the operation time is increased, and unnecessary risks are brought to the operation.
The utility model with publication number of CN216169326U discloses a guide wire auxiliary connecting device which is used for assisting the connection between a guide wire and a therapeutic instrument catheter in vascular treatment by constructing a guide wire channel. But the theory of operation of frock is similar with the funnel among the above-mentioned technical scheme, wraps up the tip in the frock, and the sacculus tip is soft plastics material, and the seal wire is hard alloy, and the seal wire can contact with the sacculus tip front through the frock, causes the damage to the sacculus easily. In the use process, the device needs time to install and disassemble, has complex operation steps and seriously affects the operation efficiency.
In other auxiliary fixtures, the guide wire connection auxiliary device is of an integral structure, the guide wire and the guide tube of the therapeutic apparatus cannot be detached after the guide wire and the guide tube of the therapeutic apparatus are connected, and other guide wire auxiliary connection devices are disposable articles and are required to be detached by destroying the whole device after the connection process is finished, so that the operation is not convenient, and resources are wasted.
Disclosure of Invention
The utility model aims at providing a guide wire auxiliary connection device and application method can realize the quick threading of guide wire in the sacculus pipe, has reduced the threading degree of difficulty of guide wire, has avoided the dismouting operation to supplementary threading frock.
In order to achieve the above object, in a first aspect, the present utility model provides a guide wire auxiliary connection device, comprising a protective steel needle and a guide wire; the protective steel needle is arranged in the catheter in a penetrating way and extends out of the far end of the balloon, the tail end of the guide wire is connected with a guide wire threading wire, and a groove which can be used for hooking the guide wire threading wire is formed in the extending part of the balloon.
In an alternative embodiment, the protective steel needle comprises a head end and a tail end, a guide wire hole is arranged on the catheter positioned outside the proximal end of the balloon, and the head end of the protective steel needle is inserted into the catheter through the guide wire hole.
In an alternative embodiment, the groove is disposed near the head end of the protective steel needle and includes an angled slot extending obliquely downward toward the head end and a slot cavity extending at least partially toward the head end.
In an alternative embodiment, the tail end of the protective steel needle is provided with a hook, the hook comprises an arc-shaped bent rod which is bent towards the balloon, and the arc-shaped bent rod and the protective steel needle are of an integral structure.
In an alternative embodiment, the guide wire threading wire comprises a silk thread, and the silk thread is connected to the tail end of the guide wire.
In an alternative embodiment, the part between the head end of the protection steel needle and the groove comprises polishing planes, wherein the polishing planes are uniformly distributed on the side wall of the protection steel needle, and the adjacent polishing planes are in smooth transition through an arc surface.
In an alternative embodiment, the guide wire threading wire is reversely bent after passing through the groove, and at least a part of the guide wire threading wire bending can be overlapped with the guide wire.
In an alternative embodiment, the head end of the protective steel needle comprises an arc chamfer that smoothly transitions from the head end to the protective steel needle.
In an alternative embodiment, the outer diameter of the protective steel needle is smaller than the inner diameter of the catheter, and the length of the protective steel needle extending out of the distal end of the balloon is not smaller than 2cm.
In a second aspect, the present utility model provides a method of using a guidewire auxiliary connection device according to any one of the preceding embodiments, comprising the steps of:
inserting a protective steel needle into the catheter from the wire guide hole towards the distal end of the balloon, and enabling the head end of the protective steel needle to extend out of the distal end of the balloon;
a guide wire threading hook at the tail end of the guide wire is connected and hung through a groove of the protective steel needle at the extending end of the saccule;
the protective steel needle is pulled out from the guide wire hole, and the guide wire threading wire and the guide wire are pulled out by the guide wire hole.
Through reforming transform the protection steel needle and the seal wire that originally use in the sacculus operation, make it can be quick pass the sacculus pointed end with the seal wire under the condition of not increasing new part to wear out by the seal wire hole of pipe, effectively improved the operating efficiency of seal wire in the sacculus through connection.
The distal end of the utility model is the end of the balloon catheter where the port is located, and the proximal end is in the opposite direction to the distal end.
Additional features and advantages of the present application will be set forth in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram showing the relationship between a protective steel needle and a balloon during normal use;
FIG. 2 is a schematic view of the structure of the proximal portion of the balloon;
FIG. 3 is a schematic view of the structure of the guide wire of the present application;
FIG. 4 is a schematic side view of the protective steel needle of the present application;
FIG. 5 is a schematic top view of the protective steel needle of the present application;
FIG. 6 is a schematic side view of the guide wire of the present application after the connection of the protective steel needle hook;
fig. 7 is a schematic top view of the guide wire of the present application after the connection and the hanging of the protective steel needle.
Icon:
1-protecting a steel needle; 11-headend; 12-tail end; 13-an arc-shaped bent rod; 14-grooves; 15-oblique slots; 16-a slot cavity;
2-a guide wire;
3-balloon;
4-a catheter; 41-a conduit opening;
5-threading a guide wire;
6-a wire guide hole;
7-outer tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The guide wire auxiliary connecting device and the use method thereof are mainly used for assisting threading of the guide wire 2 in the catheter 4 of the balloon 3, and are particularly used for extending the tail end 12 of the guide wire 2 from the catheter port 41 at the distal end of the balloon 3, threading the guide wire 2 out of the guide wire hole 6 on the catheter 4 at the proximal outer side after penetrating the whole balloon 3 in the catheter 4, and completing threading of the guide wire 2.
In the utility model, the threading of the guide wire 2 in the catheter 4 of the balloon 3 is different from the forward threading in the traditional mode, and adopts a mode similar to a threading needle and leads the protective steel needle 1 to be taken as a threading needle, and the guide wire 2 to be taken as a lead, so that the protective steel needle 1 drives the guide wire 2 to penetrate through the whole catheter 4 of the balloon 3 and be penetrated out through the guide wire hole 6.
Most of the prior art is to extend the tail end 12 of the guide wire 2 from the far to near forward direction at the opening position of the catheter 4 at the far end of the balloon 3, so that the tail end 12 of the guide wire 2 passes out of the guide wire hole 6 from the catheter 4 at the near end of the balloon 3, and the threading is completed.
However, the actual operation has practical defects, on the one hand, since the balloon 3 is coated with the drug, the balloon 3 cannot be directly touched, the catheter 4 at the proximal end side of the balloon 3 can only be held by the hand, and the catheter 4 is easy to shake when the proximal end of the balloon 3 is held by one hand due to the thin structure, so that the tail end 12 of the guide wire 2 is difficult to be opposite to the catheter port 41 at the distal end of the balloon 3, and the operation difficulty is increased; on the other hand, even if the tail end 12 of the guide wire 2 is inserted into the catheter port 41, the inner wall of the catheter 4 is easily scratched during the insertion of the guide wire into the catheter 4, thereby damaging the structure of the catheter 4 of the balloon 3.
The utility model changes the traditional inserting form of the guide wire 2 in the guide tube 4, converts the original active inserting into the passive traction form of the guide wire 2 by the reverse inserting and pulling of the protective steel needle 1 in the guide tube 4, and effectively improves the penetrating and connecting efficiency of the guide wire 2 in the guide tube 4 of the saccule 3.
Referring to the cooperation relationship between the protection steel needle 1 and the balloon 3 in normal use in fig. 1, in order to prevent the balloon 3 catheter 4 with strong flexibility but low brittleness from being bent and broken in the transportation process, the protection steel needle 1 is inserted into the balloon 3 catheter 4 from the catheter port 41 at the distal end of the balloon 3, so as to effectively support the balloon 3 catheter 4 and reliably protect the structure of the balloon 3 body.
The protective steel needle 1 is inserted from a catheter port 41 at the distal end of the balloon 3 and penetrates out from a guide wire hole 6 on the catheter 4 at the proximal end of the balloon 3 shown in fig. 2, so that the structure of the catheter 4 of the whole balloon 3 is protected.
According to the utility model, the penetration of the protective steel needle 1 in the catheter 4 of the balloon 3 is fully utilized, the protective steel needle 1 is reversely inserted into the catheter port 41 at the distal end of the balloon 3 from the wire guide hole 6 on the catheter 4 at the proximal end of the balloon 3, a part of the wire guide 2 is hooked on the extending part of the protective steel needle 1 at the catheter port 41 at the distal end of the balloon 3, then the wire guide 2 is pulled out from the catheter 4 through the protective steel needle 1, passes through the catheter 4 of the balloon 3 from the catheter port 41 in the form of a needle threading wire, and is penetrated out from the wire guide hole 6 on the catheter 4, so that the passive traction of the wire guide 2 in the catheter 4 of the balloon 3 is realized.
The protection steel needle 1 penetrates from the wire guide hole 6, and according to the existing manufacturing process, as the wire guide hole 6 is an oblique incision and a groove is formed in the outer tube 7 in the proximal direction of the wire guide hole 6, the protection steel needle 1 is conveniently inserted once, and the trafficability of the protection steel needle 1 in the wire guide hole 6 is enhanced.
Meanwhile, compared with the catheter port 41 at the far end of the balloon, the groove at the position of the guide wire hole 6 has a more abundant passing space, so that the head end 11 of the protection steel needle 1 can be prevented from scratching the inner tube when extending into the guide wire hole 6, and the reverse insertion of the protection steel needle 1 can be completed rapidly.
Referring to fig. 6 to 7, and in combination with fig. 3 to 5, the guide wire auxiliary connection device of the present utility model has a main structure including a protection steel needle 1 and a guide wire 2, and the protection steel needle 1 is inserted into a catheter 4 and protruded from a distal end of a balloon 3 based on the reverse insertion of the protection steel needle 1 as described above. To achieve the traction of the guide wire 2, a guide wire threading wire 5 is connected to the tail end 12 of the guide wire 2, and by connecting the guide wire threading wire 5 to the extending part of the protection steel needle 1 and reversely pulling out the protection steel needle 1 from the catheter 4, the guide wire threading wire 5 drives the guide wire 2 to enter the catheter 4 from the catheter opening 41 at the distal end of the balloon 3, and the guide wire 2 is led to extend through the whole catheter 4 of the balloon 3 and extends out of the catheter 4 along with the pulling-out of the protection steel needle 1 from the catheter 4. Meanwhile, the groove 14 which can be used for hooking the guide wire threading wire 5 is formed in the extending part of the saccule 3 of the protective steel needle 1, so that the guide wire threading wire 5 can be conveniently fixed in the groove 14 in a hooking mode, and the reliability of passive connection and threading of the guide wire 2 is ensured.
Referring to fig. 4-5, in combination with fig. 2, in one embodiment, the protection steel needle 1 includes a head end 11 and a tail end 12, a guide wire hole 6 is provided on the catheter 4 located outside the proximal end of the balloon 3, and the head end 11 of the protection steel needle 1 is inserted into the catheter 4 through the guide wire hole 6. Based on the reverse insertion of the protection steel needle 1 as compared to normal use as already described above, the head end 11 of the protection steel needle 1 is inserted from the wire guide hole 6 and extends forward into the catheter 4 toward the distal end of the balloon 3 and out of the catheter port 41 at the distal end of the balloon 3.
In order to facilitate hooking of the guide wire threading wire 5 to the extending part of the protection steel needle 1, the groove 14 is arranged at the part close to the head end 11 of the protection steel needle 1, and the groove 14 of the protection steel needle 1 extending out of the head end 11 specifically forms a fishhook-like structure and can accommodate bending hooking of the guide wire threading wire 5. Specifically, the groove 14 includes an angled slot 15 extending obliquely downward toward the head end 11 of the protection steel needle 1, and a slot cavity 16 at least a portion of which extends toward the head end 11. Preferably, the included angle between the chamfer groove 15 and the vertical direction is 45 degrees, so that the guide wire threading wire 5 can be prevented from loosening at the position of the groove 14. Further, the groove cavity 16 extends horizontally forward towards the head end 11 of the protection steel needle 1 on the protection steel needle 1 body to form an effective accommodating space for the guide wire threading wire 5.
The tail end 12 of the protection steel needle 1 is provided with the hook, so that the tail end 12 of the protection steel needle 1 is arranged on the outer side of the guide tube 4 in a protruding mode, the tail end 12 can be prevented from entering the guide tube 4 from the wire guide hole 6, and the protection steel needle 1 can be normally pulled out when the guide wire 2 is penetrated.
The hook comprises an arc-shaped bent rod 13 bent towards the balloon 3, and can further form a blocking structure of the protection steel needle 1 through the arc-shaped bent rod 13 to prevent the tail end 12 of the protection steel needle 1 from entering the wire guide hole 6.
When the protection steel needle 1 is reversely pulled out, a pulling-back force is applied by pinching the arc-shaped bent rod 13 by hand, and preferably, the arc-shaped bent rod 13 and the protection steel needle 1 body are of an integrated structure, so that the protection steel needle 1 is pulled out of the whole guide wire hole 6.
Referring to fig. 3, in another embodiment, the guidewire threading 5 comprises a silk thread attached to the trailing end 12 of the guidewire 2. The silk thread has stronger flexibility and certain mechanical strength, and can facilitate hooking and fixing the guide wire threading wire 5 in the groove 14 of the protective steel needle 1 by bonding the silk thread at the tail end 12 of the guide wire 2, thereby facilitating threading the guide wire 2 in the catheter 4 of the saccule 3 through the guide wire threading wire 5.
In the hooking process, the guide wire threading wire 5 is reversely bent after passing through the groove 14, so that the guide wire threading wire 5 is hooked and connected in the groove cavity 16 of the groove 14, and meanwhile, in order to prevent the guide wire threading wire 5 from loosening in the groove cavity 16, a certain bending length of the guide wire threading wire 5 needs to be ensured, and further, at least a part of bending of the guide wire threading wire 5 can be overlapped and attached with the guide wire 2. Through this kind of setting method, can guarantee the length of buckling of seal wire 5, make it firmly collude the head end 11 of protecting steel needle 1, avoid seal wire 5 to the maximum degree to protect the pine of head end 11 of protecting steel needle 1 and take off the separation.
After the guide wire threading wire 5 is bent in the groove 14, the space occupation of the guide wire threading wire 5 in the catheter 4 is compensated by reducing the volume of the protection steel needle 1 between the head end 11 and the groove 14 in the threading process, and meanwhile, the guide wire threading wire 5 is prevented from scratching the side wall of the catheter 4.
Specifically, by providing the form of a grinding plane at the position between the head end 11 of the protection steel needle 1 and the groove 14, the volume of the body of the segment protection steel needle 1 is reduced. Preferably, a plurality of planes of polishing are evenly distributed on the side wall between the head end 11 of the protection steel needle 1 and the groove 14, and the adjacent planes of polishing are smoothly transited through the cambered surface, so that the bent guide wire threading wire 5 can be contained between the polishing planes and the inner side wall of the guide tube 4 on the premise of reducing the volume of the head end 11 of the protection steel needle 1, and the guide wire threading wire 5 is effectively prevented from scratching the guide tube 4 when the protection steel needle 1 is pulled out.
Based on the reverse insertion of the protection steel needle 1 according to the present utility model, in order to prevent the head end 11 from damaging the side wall of the guide tube 4 during the insertion of the protection steel needle 1, the head end 11 of the protection steel needle 1 comprises an arc chamfer, preferably, the arc chamfer smoothly transitions from the head end 11 to the protection steel needle 1.
Further, the arc chamfer is smoothly transited to the polishing plane and the cambered surface at the head end 11, so that protection can be effectively formed on the catheter 4, and the catheter 4 is prevented from being scratched in the process that the protective steel needle 1 is reversely inserted into the catheter port 41 at the far end of the balloon 3 from the wire guide hole 6.
In order to ensure that the protection steel needle 1 is normally inserted and pulled in the guide pipe 4, the guide wire penetrating wire 5 after bending is prevented from cutting the guide pipe 4, and the outer diameter of the protection steel needle 1 is smaller than the inner diameter of the guide pipe 4. Preferably, the outer diameter of the protective steel needle 1 is at least 0.001 inch less than the inner diameter of the catheter 4, providing sufficient play between the protective steel needle 1 and the catheter 4 to prevent the guidewire threading 5 from scoring the inner wall of the catheter 4.
The length of the protecting steel needle 1 extending out of the far end of the saccule 3 is not less than 2cm, so that sufficient operation space can be provided for the head end 11 of the protecting steel needle 1 for the guide wire threading wire 5, and the convenience of hooking operation of the protecting steel needle 1 by the guide wire threading wire 5 is improved.
By the aid of the guide wire auxiliary connecting device, threading operation of the guide wire 2 can be simplified, operation can be completed by a single person with two hands, and threading efficiency of the guide wire 2 in the catheter 4 of the balloon 3 is improved.
The silk guide threading wire 5 in the form of silk threads is easy to degrade, and unnecessary auxiliary operation of tool components is not needed, so that the possibility of surgical errors is reduced.
The utility model also provides a using method of the guide wire auxiliary connecting device, which mainly comprises the following steps:
inserting the protection steel needle 1 from the guide wire hole 6 on the catheter 4 at the proximal side of the balloon 3, inserting the head end 11 of the protection steel needle 1 into the catheter 4 toward the distal end of the balloon 3, and extending the head end 11 of the protection steel needle 1 from the catheter port 41 at the distal end of the balloon 3;
the guide wire threading wire 5 at the tail end 12 of the guide wire 2 is hooked and connected to the protective steel needle 1 through the groove 14 of the protective steel needle 1 at the extending part of the far end of the saccule 3;
the tail end 12 of the hand-pinched protecting steel needle 1 reversely pulls out the protecting steel needle 1 from the wire guide hole 6, so that the head end 11 of the protecting steel needle 1 is pulled out from the wire guide hole 6, and meanwhile, the wire guide threading 5 and the tail end 12 of the wire guide 2 are pulled out by the wire guide hole 6, so that threading connection of the wire guide 2 in the catheter 4 of the saccule 3 is completed.
After the guide wire 2 is pulled out of the guide wire hole 6, the guide wire threading wire 5 is separated from the protection steel needle 1, the protection steel needle 1 is removed, and the guide wire 2 can be threaded on the balloon 3 by pushing the balloon 3 distally by holding the guide wire threading wire 5.
It should be noted that, without conflict, features in the embodiments of the present application may be combined with each other.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (8)
1. The guide wire auxiliary connecting device is characterized by comprising a protective steel needle and a guide wire; the protective steel needle is arranged in the catheter in a penetrating way and extends out of the far end of the balloon, the tail end of the guide wire is connected with a guide wire threading wire, and a groove which can be hooked by the guide wire threading wire is formed in the extending part of the balloon;
the protective steel needle comprises a head end and a tail end, the groove is arranged at the position close to the head end of the protective steel needle and comprises an inclined groove which extends downwards obliquely towards the head end and a groove cavity at least a part of which extends towards the head end;
the guide wire threading wire is reversely bent after passing through the groove, and at least one part of the bent guide wire threading wire can be overlapped with the guide wire.
2. The guidewire auxiliary connection device according to claim 1, wherein a guidewire hole is provided in the catheter outside the proximal end of the balloon, and the tip of the protective steel needle is inserted into the catheter through the guidewire hole.
3. The guidewire auxiliary connection device according to claim 2, wherein the tail end of the protective steel needle is provided with a hook, the hook comprising an arc-shaped bent rod bent toward the balloon, the arc-shaped bent rod being of unitary construction with the protective steel needle.
4. The guidewire auxiliary connection device of claim 1, wherein the guidewire threading comprises a silk thread connected at a trailing end of the guidewire.
5. The auxiliary guide wire connecting device according to claim 4, wherein the part between the head end of the protective steel needle and the groove comprises polishing planes, the polishing planes are uniformly distributed on the side wall of the protective steel needle, and adjacent polishing planes are in smooth transition through cambered surfaces.
6. The guidewire auxiliary connection device of claim 1, wherein the head end of the protective steel needle comprises an arcuate chamfer that smoothly transitions from the head end to the protective steel needle.
7. The guidewire auxiliary connection device according to claim 1, wherein an outer diameter of the protective steel needle is smaller than an inner diameter of the catheter, and a length of the protective steel needle extending out of the distal end of the balloon is not smaller than 2cm.
8. A method of using a guidewire assist connection according to any one of claims 1-7, comprising the steps of:
inserting a protective steel needle into the catheter from the wire guide hole towards the distal end of the balloon, and enabling the head end of the protective steel needle to extend out of the distal end of the balloon;
a guide wire threading hook at the tail end of the guide wire is connected and hung through a groove of the protective steel needle at the extending end of the saccule;
the protective steel needle is pulled out from the wire guide hole, and the wire guide threading wire is pulled out by the wire guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210770985.0A CN115105726B (en) | 2022-06-30 | 2022-06-30 | Guide wire auxiliary connection device and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210770985.0A CN115105726B (en) | 2022-06-30 | 2022-06-30 | Guide wire auxiliary connection device and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115105726A CN115105726A (en) | 2022-09-27 |
| CN115105726B true CN115105726B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210770985.0A Active CN115105726B (en) | 2022-06-30 | 2022-06-30 | Guide wire auxiliary connection device and use method |
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| CN (1) | CN115105726B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201147349Y (en) * | 2007-11-22 | 2008-11-12 | 河南华南医电科技有限公司 | PCI sacculus silk-guiding conductor |
| CN202008322U (en) * | 2011-01-30 | 2011-10-12 | 浏阳市青草烟花制造有限公司 | Fully-automatic firework lead threading device |
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| US7018358B2 (en) * | 2003-03-18 | 2006-03-28 | Abbott Laboratories Vascular Enterprises Limited | Catheter having an auxiliary lumen for use with a functional measurement wire |
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| CN201147349Y (en) * | 2007-11-22 | 2008-11-12 | 河南华南医电科技有限公司 | PCI sacculus silk-guiding conductor |
| CN202008322U (en) * | 2011-01-30 | 2011-10-12 | 浏阳市青草烟花制造有限公司 | Fully-automatic firework lead threading device |
| CN204170276U (en) * | 2014-10-08 | 2015-02-25 | 广东百合医疗科技股份有限公司 | A kind of blue empty needle for guiding wire |
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| CN113069667A (en) * | 2021-03-22 | 2021-07-06 | 哈尔滨医科大学 | Lead and wear device |
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| CN115105726A (en) | 2022-09-27 |
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