CN215083908U

CN215083908U - Catheter guide wire grabbing sheath

Info

Publication number: CN215083908U
Application number: CN202120383659.5U
Authority: CN
Inventors: 刘一鸣; 李玲; 郑传胜; 宋松林; 马金强; 肖书萍
Original assignee: Tongji Medical College of Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology; Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2021-02-21
Filing date: 2021-02-21
Publication date: 2021-12-10
Anticipated expiration: 2031-02-21

Abstract

The utility model discloses a catheter guide wire grabbing sheath, which comprises a control handle, a connecting sheath pipe and a guiding guide wire, wherein a torsion controller is arranged on the control handle, the sheath pipe also comprises a recovery sheath pipe connected with the end part of the connecting sheath pipe, the guiding guide wire extends to the interior of the recovery sheath pipe, a grabbing component for grabbing a guide wire catheter is arranged in the recovery sheath pipe, and a touch control component is arranged at the end part of the recovery sheath pipe; snatch the subassembly and accomodate the ring and rotate the arc splint that the setting was gone on pressing from both sides the seal wire pipe and is got on two inner walls about sliding and accomodate the ring including sliding the setting on connecting the sheath pipe and retrieving the sheath pipe inner wall. The utility model discloses a snatch the subassembly and snatch the pipe seal wire and outwards take out to through setting up the touch-control subassembly, protect the blood vessel at the in-process of advancing, will snatch the subassembly and expose outside retrieving the sheath pipe when the touch-control subassembly touches the pipe seal wire, snatch the entering from both sides to the pipe seal wire with snatching in retrieving the sheath pipe and connecting the sheath pipe.

Description

Catheter guide wire grabbing sheath

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to catheter guide wire snatchs sheath.

Background

At present, during the clinical intravascular operation, the possibility of breakage and unloading of devices such as guide wires, catheters, stents and the like often occurs, or foreign bodies in blood vessels after trauma of patients need to be removed. At present, in clinic, a doctor firstly transmits a snare into a catheter through a guide head, expands a blood vessel by means of an expander, then pushes a recovery sheath tube to a preset position in the blood vessel, and finally sends the snare to a specified position for capturing by penetrating the catheter through the recovery sheath tube. Once the snare catches the foreign body, the recovery sheath is pushed forwards to tighten the snare so as to catch the foreign body, then under the condition of keeping the snare tightened, the snare is pulled back to make the foreign body retracted into the recovery sheath, and then the foreign body, the catheter, the snare and the recovery sheath are withdrawn out of the body. The current operating mode does not effectively protect the blood vessel, when the experience of an operator is insufficient or the state is not good, the blood vessel is easily damaged, and when the foreign matters are large or irregular or difficult to control, the problem that the foreign matters are difficult to completely recover also occurs, in this case, the damage to the blood vessel is increased in the process of moving the sheath.

For solving above-mentioned problem, application number is CN 201720159054.1's utility model discloses a subassembly is arrested to vascular foreign matter among the prior art, through increasing protection sheath pipe, when performing the operation, can advance earlier to impel protection sheath pipe before advancing to retrieve the sheath pipe and protect the blood vessel, but prior art exists following not enough, prior art adopts the snare to fix the pipe seal wire and get outside the blood vessel, the pipe seal wire need get into completely in the lasso ware and just can take out the pipe seal wire, whether the in-process of operation needs the whole cover of doctor to lasso ware completely to judge on the pipe seal wire, it needs to try many times repeatedly just to accomplish to the cover of pipe seal wire, it is comparatively troublesome.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a sheath is snatched to catheter seal wire, the effectual operation in-process doctor who has solved prior art need be whole to the lasso ware whether cover totally judge on the catheter seal wire, get the problem that need try many times repeatedly just can accomplish to the cover of catheter seal wire.

In order to solve the above technical problem, the utility model particularly provides the following technical scheme: a catheter guide wire grabbing sheath comprises a control handle, a connecting sheath pipe arranged on the control handle, and a guiding guide wire penetrating through the connecting sheath pipe, wherein a torsion controller is arranged on the control handle;

snatch the subassembly including sliding the setting connect the sheath pipe with retrieve slip on the sheath pipe inner wall and accomodate the ring and rotate the setting and be in the arc splint that the seal wire pipe was got on two inner walls about the slip is accomodate the ring.

As the utility model discloses an optimal scheme, fixed mounting has T shape fixing base on the slip is accomodate ring tip inner wall, the sliding tray has been seted up on the T shape fixing base, it gets the control block to slide to be provided with to press from both sides in the sliding tray, it is connected with the control lever to press from both sides to get the control block both ends and rotate, the control lever is kept away from it connects to press from both sides to get the control block both ends and rotate on the arc splint tip.

As the utility model discloses an optimal scheme, press from both sides and get control block one end and pass through connecting rod fixedly connected with arc lagging, the arc lagging with guide wire head fixed connection.

As the utility model discloses an optimal scheme, the slip is accomodate the ring and is close to the tip fixedly connected with stopper of connecting sheath pipe one end, connect the sheath pipe with the confession has been seted up on retrieving the sheath pipe inner wall the gliding groove of accomodating of stopper.

As the utility model discloses an optimal scheme, the touch-control subassembly is in including cup jointing the touch-control protection ring of retrieving sheath pipe tip, the touch-control protection ring passes through the elasticity stay cord and connects retrieve on the sheath pipe, the embedded annular button that is equipped with of touch-control protection ring, the annular button passes through spring coupling and is in the touch-control protection ring, the touch-control protection ring passes through the protruding joint of slope and is in retrieve sheath pipe tip, annular button one side set up with the inclined plane that the slope arch agrees with.

As the preferred scheme of the utility model, the slope is protruding to be installed through the elastic component in retrieving the sheath pipe outer wall.

Compared with the prior art, the utility model following beneficial effect has:

the utility model discloses set up at recovery sheath pipe tip and snatch the subassembly, snatch and outwards take out the pipe seal wire to through setting up the touch-control subassembly, protect the blood vessel at the in-process of advancing, will snatch the subassembly and expose outside the recovery sheath pipe when the touch-control subassembly touches the pipe seal wire, snatch comparatively accurate convenience in getting into recovery sheath pipe and connecting the sheath pipe from both sides to the pipe seal wire with snatching the subassembly.

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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic structural view of a catheter guidewire grasping sheath according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the grabbing component and the touch component in the embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

1-a control handle; 2-connecting a sheath; 3-guiding the guide wire; 4-recovering the sheath; 5-a grasping assembly; 6-a touch component; 7-a connecting rod; 8-arc-shaped sleeve plates; 9-storage tank

51-a sliding receiving ring; 52-arc splint; 53-T shaped fixing seat; 54-a sliding groove; 55-a gripping control block; 56-control lever; 57-a limiting block;

61-touch guard ring; 62-ring key; 63-a spring; 64-oblique protrusions; 65-elastic pull rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a catheter guide wire snatchs sheath snatchs subassembly 5 and touch-control subassembly 6 through the setting, detects and snatchs the intravascular catheter guide wire automatically, and the effectual operation in-process doctor who has solved prior art needs whole to cover the complete judgement on the catheter guide wire to the lasso ware, gets the problem that need relapse a lot of attempts could be accomplished to the cover of catheter guide wire.

The utility model discloses a control handle 1, install connection sheath pipe 2 on control handle 1 and wear to establish the guide wire 3 that guides in connecting sheath pipe 2, the installation is provided with the wrench movement accuse ware on control handle 1, still including connecting the recovery sheath pipe 4 at connection sheath pipe 2 tip, guide wire 3 and extend to inside retrieving sheath pipe 4, retrieve and be provided with in the sheath pipe 4 and snatch the subassembly 5 that snatchs to the seal wire pipe, retrieve 4 tip installations of sheath pipe and be provided with touch-control subassembly 6.

Wherein, snatch subassembly 5 and accomodate ring 51 and rotate the arc splint 52 that the setting was got to the seal wire pipe on two inner walls about slip accomodate ring 51 and was pressed from both sides including the slip setting on connecting sheath pipe 2 and retrieving 4 inner walls of sheath pipe, fixed mounting has T shape fixing base 53 on the slip accomodate ring 51 tip inner wall, sliding tray 54 has been seted up on T shape fixing base 53, it gets clamp control block 55 to slide to be provided with in the sliding tray 54 to slide, it is connected with control lever 56 to get the rotation of control block 55 both ends, control lever 56 keeps away from to get the rotation of clamp control block 55 both ends and connects on arc splint 52 tip.

The gripping assembly 5 basically works in such a way that the gripping control block 55 drives the control rod 56 to incline rightwards under the pushing and guiding of the guide wire 3, the horizontal position of the upper end of the control rod 56 descends, and the end, away from the control rod 56, of the arc-shaped clamping plate 52 is driven to expand outwards until the end is abutted against the port of the recovery sheath tube 4, at the moment, the space formed between the arc-shaped clamping plates 52 is the largest, and the guide wire of the catheter easily enters between the arc-shaped clamping plates 52; the gripping control block 55 is then pulled back until the control rod 56 is in the vertical position and the level of the upper end of the control rod 56 is at its highest, at which time the end of the arc-shaped clamping plate 52 remote from the control rod 56 grips the catheter guide wire.

The guide wire 3 is mainly used for controlling the advancing direction of the end part of the recovery sheath tube 4, for convenience of control, one end of the clamping control block 55 is fixedly connected with an arc-shaped sleeve plate 8 through a connecting rod 7, and the arc-shaped sleeve plate 8 is fixedly connected with the head part of the guide wire 3; the guide wire 3 controls the gripping control block 55 to perform directional adjustment of the gripping assembly 5 to facilitate entry of the catheter guide wire into the gripping assembly 5.

Slip is accomodate ring 51 and is in the port department of retrieving sheath pipe 4 when needs snatch the catheter seal wire, when snatching the catheter seal wire, slip is accomodate ring 51 and is followed to press from both sides to get control block 55 and slide to retrieving sheath pipe 4 and connecting sheath pipe 2, in order to avoid slip to accomodate ring 51 roll-off and retrieve sheath pipe 4, it is spacing to accomodate ring 51 to slip, slip is accomodate ring 51 and is close to the tip fixedly connected with stopper 57 of connecting sheath pipe 2 one end, connect and offer on sheath pipe 2 and the recovery sheath pipe 4 inner wall and supply the gliding groove 9 of accomodating of stopper 57.

The utility model discloses well touch-control subassembly 6's primary role is when touching the pipe seal wire when touch-control subassembly 6, will snatch subassembly 5 and expose and snatch the pipe seal wire in the blood vessel, touch-control subassembly 6 is including cup jointing the touch-control protection ring 61 that sets up at the 4 tip of recovery sheath pipe, the embedded annular button 62 that is equipped with of touch-control protection ring 61, annular button 62 passes through spring 63 and connects in touch-control protection ring 61, touch-control protection ring 61 is retrieving sheath pipe 4 tip through the protruding 64 joint of slope, annular button 62 one side sets up the inclined plane that agrees with the protruding 64 of slope, the protruding 64 of slope passes through the elastic component and installs in retrieving sheath pipe 4 outer walls.

The main working principle of the touch control assembly 6 is that when the annular key 62 contacts the guide wire of the catheter, the annular key 62 slides inwards for a distance to slightly press the inclined protrusion 64, the touch control protection ring 61 is not clamped by the recovery sheath tube 4, the distance at one end rebounds under the action of the elastic pull rope 65, the arc-shaped clamping plate 52 is not protected, and the arc-shaped clamping plate 52 is exposed in the blood vessel.

The main implementation of the utility model is that, the recovery sheath tube 44 and the connection sheath tube 2 are inserted into the blood vessel, the recovery sheath tube 44 is inserted into the blood vessel of the dropped catheter guide wire by controlling the torque controller, and slowly advances, at this time, the guide wire 3 is guided to push the clamping control block 55, the arc-shaped clamp plate 52 is in the unfolding state, when the ring-shaped button 62 contacts the catheter guide wire, the touch control ring 61 slides inwards under the action of the ring-shaped button 62 and the elastic pull rope 65, the arc-shaped clamp plate 52 is not protected, the arc-shaped clamp plate 52 is exposed in the blood vessel, so that the doctor can observe the state of the arc-shaped clamp plate 52, the guide wire 3 is guided to continuously advance for a certain distance, the catheter guide wire enters the arc-shaped clamp plate 52, the guide wire 3 is guided to pull back, the clamping control block 55 drives the control rod 56 to be in the vertical state, the arc-shaped clamp plate 52 gradually tends to the horizontal state to clamp the catheter guide wire, the catheter guide wire enters the recovery sheath tube 4 along with the sliding receiving ring 51 under the action of the arc-shaped clamp plate 52, and sliding to a certain position, moving the recovery sheath tube 4 and the connection sheath tube 2 outwards together, and slowly taking out the guide wire of the catheter.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. A catheter guide wire grabbing sheath comprises a control handle (1), a connecting sheath tube (2) installed on the control handle (1) and a guide wire (3) arranged in the connecting sheath tube (2) in a penetrating mode, wherein a twisting controller is installed on the control handle (1), the catheter guide wire grabbing sheath is characterized by further comprising a recovery sheath tube (4) connected to the end portion of the connecting sheath tube (2), the guide wire (3) extends to the interior of the recovery sheath tube (4), a grabbing assembly (5) for grabbing a guide wire catheter is arranged in the recovery sheath tube (4), and a touch assembly (6) is installed at the end portion of the recovery sheath tube (4);

snatch subassembly (5) including slide and set up connect sheath pipe (2) with it accomodates ring (51) and rotate the setting to retrieve slip on sheath pipe (4) inner wall and be in arc splint (52) that the seal wire pipe was got are carried out the clamp to the seal wire pipe on two inner walls about slip accomodate ring (51).

2. The catheter guidewire grabbing sheath as claimed in claim 1, wherein a T-shaped fixing seat (53) is fixedly mounted on an inner wall of an end portion of the sliding accommodating ring (51), a sliding groove (54) is formed in the T-shaped fixing seat (53), a clamping control block (55) is slidably arranged in the sliding groove (54), two ends of the clamping control block (55) are rotatably connected with control rods (56), and the control rods (56) are rotatably connected to end portions of the arc-shaped clamping plates (52) far away from two ends of the clamping control block (55).

3. The catheter guidewire grasping sheath according to claim 2, characterized in that one end of the clamping control block (55) is fixedly connected with an arc-shaped sleeve plate (8) through a connecting rod (7), and the arc-shaped sleeve plate (8) is fixedly connected with the head of the guide guidewire (3).

4. The catheter guidewire grabbing sheath as claimed in claim 3, wherein a limiting block (57) is fixedly connected to an end of the sliding accommodating ring (51) close to one end of the connecting sheath (2), and accommodating grooves (9) for the limiting block (57) to slide are formed on inner walls of the connecting sheath (2) and the recovery sheath (4).

5. The catheter guidewire grabbing sheath of claim 1, wherein the touch control assembly (6) comprises a touch control protection ring (61) sleeved at the end of the recovery sheath (4), the touch control protection ring (61) is connected to the recovery sheath (4) through an elastic pull rope (65), an annular key (62) is embedded in the touch control protection ring (61), the annular key (62) is connected to the inside of the touch control protection ring (61) through a spring (63), the touch control protection ring (61) is clamped at the end of the recovery sheath (4) through an inclined protrusion (64), and an inclined surface matched with the inclined protrusion (64) is arranged on one side of the annular key (62).

6. The catheter guidewire grasping sheath according to claim 5, characterized in that the inclined protrusion (64) is mounted inside the outer wall of the retrieval sheath (4) by means of a resilient member.