Anti-slip PTCD drainage tube fixed in bile duct

Abstract

The utility model relates to the technical field of medical instruments, in particular to an anti-slip PTCD drainage tube fixed in a bile duct, which comprises a connector, one end of the connector is connected with a drainage tube, the surface of the connector is connected with two symmetrically arranged fixing mechanisms, each fixing mechanism comprises a connecting block, the surface of the connector is fixedly connected with the connecting block, and the connecting block is fixedly connected with the drainage tube. And one end of the connecting block is fixedly connected with a fixed plate, a limiting groove is formed in the surface of the connecting block, and a movable plate is arranged on the surface of the connecting block. The winding firmness of the suture, the drainage tube and the connector can be improved in a two-phase winding mode, so that the drainage tube is not prone to loosening relative to the suture, the suture loop is extruded and fixed through the rubber ring, and the suture head is extruded and fixed through the movable plate and the fixed plate. A section of wound suture head part can be stabilized on the connector, the knotting process is omitted, meanwhile, operation is convenient, and the stabilizing effect on the suture head part is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially is related to a bile duct internal fixation anti -slip PTCD drainage tube. BACKGROUND

[0002] PTCD (percutaneous transhepatic cholangial drainage) is a kind of minimally invasive surgery, aims to guide by image device (such as X-ray, B ultrasound etc.), utilizes special puncture needle to be in through skin and enter into intrahepatic bile duct, carries out biliary tract drainage, biliary tract drainage tube is placed, need in puncture port place utilizing suture to sew up skin and wind drainage tube, and then knot is made in connecting head part position, to fixedly place drainage tube on skin surface.

[0003] But when suture cross winding is to the drainage tube surface, since there is no good knot fixing position in connecting head part position, it is more troublesome when knot is made to suture head end, even if knot is made well in connecting head part position, since the winding mode of suture is unidirectional winding, therefore fixed effect is poor, and it is easy to produce loosening, and is not fixed firmly. UTILITY MODEL CONTENTS

[0004] In order to overcome the insufficient of prior art, the utility model provides a bile duct internal fixation anti -slip PTCD drainage tube, the winding firmness of suture, connecting head and drainage tube can be improved by the mode of two -phase winding, simultaneously, a section of suture head part after winding can be stabilized on connecting head, and the process of knot making is avoided, and operation is convenient, and the stabilization effect of suture head part is better.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a bile duct internal fixation anti -slip PTCD drainage tube, connecting head is connected with drainage tube in one end of connecting head, two symmetrical fixed mechanisms are connected on the surface of connecting head, the fixed mechanism includes connecting block, the surface of connecting head is fixedly connected with connecting block, one end of connecting block is fixedly connected with fixed plate, the surface of connecting block is equipped with limit slot, the surface of connecting block has moving plate, the moving plate can slide on the surface of connecting block by the rubber ring fixed in the rectangular mouth inner wall of moving plate, the surface of connecting block is wound with spring, one end of spring is fixedly connected with connecting head, the other end of spring is fixedly connected with moving plate.

[0006] As a preferred technical scheme of the utility model, the inner end surface of the rubber ring is provided with an inverted bevel.

[0007] As a preferred technical scheme of the utility model, the outer circular surface of the moving plate is fixedly connected with the pull rod.

[0008] As a preferred technical scheme of the utility model, the mobile plate is fixedly connected with a connecting ring at one end close to the fixed plate, and the connecting ring and the fixed plate are in clearance fit.

[0009] As a preferred technical scheme of the utility model, a catheter fixing patch is attached to the surface of the drainage tube.

[0010] As a preferred technical scheme of the utility model, a plurality of drainage side holes are formed in the front end head of the drainage tube.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] By setting the fixing mechanism, the winding firmness of the suture, the drainage tube and the connecting head can be improved through the double-phase winding mode, so that the drainage tube is not prone to looseness relative to the suture, and the suture head part after winding is stably fixed on the connecting head through the extrusion and fixation of the rubber ring on the suture ring and the extrusion and fixation of the suture head by the mobile plate and the fixed plate, thereby eliminating the knotting process, facilitating operation and achieving better stability of the suture head part. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structural diagram of the utility model;

[0014] Figure 2 It is the fixing mechanism structure diagram of the utility model;

[0015] Figure 3 It is the overall structural diagram of the utility model Figure 1 ; the enlarged structure diagram of A;

[0016] Figure 4 It is the structure diagram of the rubber ring of the utility model.

[0017] Among them; 1, connecting head; 2, drainage tube; 3, fixing mechanism; 31, connecting block; 32, fixed plate; 33, limiting groove; 34, mobile plate; 35, rubber ring; 36, spring; 37, connecting ring; 38, pull rod; 4, catheter fixing patch; 5, drainage side hole. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. In the following embodiments, the experimental methods are conventional methods, and the materials, reagents, etc. used in the following embodiments are commercially available unless otherwise specified.

[0019] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model provides a bile duct internal fixed anti -skid PTCD drainage tube, including the connector 1, the one end of connector 1 is connected with the drainage tube 2, the surface of connector 1 is connected with two symmetrical fixed mechanism 3 of setting, fixed mechanism 3 includes the connecting block 31, the surface fixed connection of connector 1 has connecting block 31, the one end fixed connection of connecting block 31 has fixed plate 32, the surface of connecting block 31 is equipped with limit slot 33, the surface of connecting block 31 has moving plate 34, moving plate 34 can slide on the surface of connecting block 31 through the rubber ring 35 fixed in its rectangular mouth inner wall, the surface of connecting block 31 is around spring 36, the one end of spring 36 is fixedly connected with connector 1, the other end of spring 36 is fixedly connected with moving plate 34.

[0020] In the case, when two suture threads cross winding on the surface of drainage tube 2, press moving plate 34, so that moving plate 34 slides on the surface of connecting block 31 through rubber ring 35, at the same time, spring 36 is compressed, then the extra suture thread is tightly wound in the inside of limit slot 33, so that the suture loop slightly exposes limit slot 33, then release moving plate 34, under the elastic force of spring 36, make moving plate 34 slide reversely on the surface of connecting block 31 through rubber ring 35, rubber ring 35 moves to the surface of suture loop, tightly adheres to suture loop, and extrudes suture loop, at the same time, moving plate 34 tightly extrudes the suture head on one end of fixed plate 32, so as to realize the fixation of suture thread, through the mode of double-phase winding, can improve the winding firmness of suture thread and drainage tube 2, connector 1, so that drainage tube 2 is not prone to looseness relative to suture thread, through the extrusion and fixation of rubber ring 35 to suture loop and the extrusion and fixation of moving plate 34 and fixed plate 32 to suture head, can stabilize the suture head part after winding on connector 1, avoid the process of knotting, convenient operation, and the stabilization effect of suture head part is better.

[0021] When moving plate 34 contacts fixed plate 32, rubber ring 35 fully covers limit slot 33.

[0022] Rubber ring 35 fully covers and extrudes the suture loop that exposes limit slot 33, so that the suture loop is firmly fixed in the inside of limit slot 33.

[0023] The inner end face of rubber ring 35 is provided with an inverted bevel.

[0024] By setting the inverted bevel on the inner end face of rubber ring 35, one end of rubber ring 35 can slide through the suture loop that exposes limit slot 33, preventing the suture loop that exposes limit slot 33 from being pushed away from limit slot 33.

[0025] The outer circular surface of the moving plate 34 is fixedly connected with a pull rod 38.

[0026] By arranging the pull rod 38, the user can press the pull rod 38, so that the moving plate 34 moves, thereby facilitating the user to move the moving plate 34 away from the fixed plate 32.

[0027] The end of the moving plate 34 close to the fixed plate 32 is fixedly connected with a connecting ring 37, and the connecting ring 37 is in a clearance fit with the fixed plate 32.

[0028] When the moving plate 34 approaches the fixed plate 32 under the elastic force of the spring 36, the connecting ring 37 slides on the outer circular surface of the fixed plate 32, and at the same time, clamps the suture, so that the connecting ring 37 and the fixed plate 32 extrude the suture to offset, so that the tension of the wound suture is improved, thereby improving the firmness of the suture winding.

[0029] The surface of the drainage tube 2 is pasted with a catheter fixing sticker 4.

[0030] When the winding work of the suture is completed, the catheter fixing sticker 4 is pasted on the drainage tube 2 and the skin of the patient, so that the drainage tube 2 can be stabilized on the skin of the patient.

[0031] The front end head of the drainage tube 2 is provided with a plurality of drainage side holes 5.

[0032] The existence of the drainage side hole 5 makes the drainage tube 2 can drain bile from multiple angles and positions, can collect bile of different parts at the same time, greatly increases the effective area of the drainage bile, thereby improves the drainage efficiency, more effectively reduces the pressure in the drainage tube 2.

[0033] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, the present application can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An intra-biliary fixed anti-dislocation PTCD drainage tube, comprising a connecting head (1), one end of the connecting head (1) being connected with a drainage tube (2), the surface of the connecting head (1) being connected with two symmetrically arranged fixing mechanisms (3), characterized in that: The fixed mechanism (3) includes a connecting block (31), the surface of the connecting head (1) is fixedly connected with the connecting block (31), one end of the connecting block (31) is fixedly connected with a fixed plate (32), the surface of the connecting block (31) is provided with a limiting groove (33), the surface of the connecting block (31) is provided with a moving plate (34), the moving plate (34) can slide on the surface of the connecting block (31) through a rubber ring (35) fixed in the rectangular port inner wall, the surface of the connecting block (31) is wound with a spring (36), one end of the spring (36) is fixedly connected with the connecting head (1), and the other end of the spring (36) is fixedly connected with the moving plate (34).

2. The anti-dislocation PTCD drainage tube according to claim 1, wherein: An inner end surface of the rubber ring (35) is provided with an inverted bevel.

3. The anti-dislocation PTCD drainage tube according to claim 1, wherein: The outer circular surface of the moving plate (34) is fixedly connected with a pull rod (38).

4. The anti-dislocation PTCD drainage tube according to claim 1, wherein: One end of the moving plate (34) close to the fixed plate (32) is fixedly connected with a connecting ring (37), and the connecting ring (37) is in clearance fit with the fixed plate (32).

5. The anti-dislocation PTCD drainage tube according to claim 1, wherein: The surface of the drainage tube (2) is attached with a catheter fixing sticker (4).

6. The anti-dislocation PTCD drainage tube according to claim 1, wherein: The front end head of the drainage tube (2) is provided with a plurality of drainage side holes (5).

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