Interventional conveying device

Abstract

The utility model discloses an intervention conveying device, which particularly relates to the medical field and comprises a conveying sheath tube seat, an external thread end ring is arranged at one end of the conveying sheath tube seat, a conveying sheath tube is connected to the inner side of the external thread end ring, and a developing ring is mounted at the end of the conveying sheath tube. An external thread is arranged at the other end of the conveying sheath tube and located in the external thread end ring, a tilting part is arranged at one end of the external thread end ring, the external thread of the external thread end ring is connected with a nut, a hemostasis valve is installed at the other end of the conveying sheath tube seat, and one end of the hemostasis valve is communicated with a connecting tube. A locking structure is designed after the conveying sheathing canal is in threaded connection with the external thread end ring, the stability when the conveying sheathing canal is connected with the external thread end ring is improved, the phenomenon of loosening is not prone to occurring, comfort when an operator holds the conveying sheathing canal and the external thread end ring is improved conveniently, and the conveying sheathing canal can be locked when the conveying sheathing canal and the external thread end ring are loosened and placed after connection is completed. And the collision strength with a placement surface during placement is buffered, and the placement stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the medical field more specifically, the utility model relates to an intervention delivery device. BACKGROUND

[0002] In the medical field, the intervention delivery device is an important medical instrument, which is mainly used for sending treatment instruments, drugs or occlusion devices into the target position in the body through blood vessels or other natural cavities to carry out interventional treatment. During the operation, the doctor first sends the catheter and guide wire into the patient's body through puncture and other methods, and then uses the guide of the catheter and guide wire to send the delivery mechanism and the occlusion device or other treatment instruments carried by the delivery mechanism into the target position. After reaching the target position, the doctor releases the occlusion device or carries out other treatment operations by operating the handle or the delivery mechanism.

[0003] Through the search, the Chinese patent with the publication number CN202892007U discloses an occlusion device intervention delivery device, which comprises a delivery sheath, a dilating sheath, a loading sheath and a pushing rod. The delivery sheath comprises a delivery sheath pipe base, a hemostatic valve, an extension pipe, a single-handle tee joint and a delivery sheath pipe. One end of the delivery sheath pipe base is detachably connected with the hemostatic valve, and the other end is connected with the delivery sheath pipe. One end of the extension pipe is connected with the hemostatic valve, and the other end is connected with the single-handle tee joint. The technical effect of the occlusion device intervention delivery device lies in that it can smoothly deliver the occlusion device and improve the success rate of the occlusion device intervention operation. Since the hemostatic valve is built in the delivery sheath, the device has the advantages of simple structure, low cost, easy operation and good hemostatic effect.

[0004] However, the stability of the delivery sheath pipe connected with the delivery sheath pipe base of the above-mentioned occlusion device intervention delivery device is poor in actual use. Since there is no locking structure, the device is prone to loosening during use, and the comfort of the operator's hand is poor. When placed, the collision force between the device and the placement surface lacks buffering, and the device is prone to a large collision between the placement surfaces during the placement process, causing damage. TECHNICAL SOLUTION

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an intervention delivery device.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an intervention delivery device, which comprises a delivery sheath pipe base, one end of the delivery sheath pipe base is provided with an external thread end ring, the inner side of the external thread end ring is connected with a delivery sheath pipe, the end of the delivery sheath pipe is provided with a developing ring, and the other end of the delivery sheath pipe is provided with an external thread in the inside of the external thread end ring, one end of the external thread end ring is provided with a raised part, and the external thread of the external thread end ring is connected with a nut, the other end of the delivery sheath pipe base is provided with a hemostatic valve, one end of the hemostatic valve is connected with a connecting pipe, and the outside of the delivery sheath pipe base is connected with a protection assembly.

[0007] As a further improvement of the utility model technical scheme, the inside of the external thread end ring is provided with internal threads at the connecting part corresponding to the external threads, and the delivery sheath tube and the external thread end ring are connected through threads.

[0008] As a further improvement of the utility model technical scheme, the inner surface of the raised part is provided with a rubber pad, and the rubber pad and the inner surface of the raised part are fixed through glue.

[0009] As a further improvement of the utility model technical scheme, the material of the delivery sheath tube seat, the external thread end ring and the delivery sheath tube is medical grade plastic or metal, and the outer surface of the delivery sheath tube is provided with scale lines.

[0010] As a further improvement of the utility model technical scheme, the outer surface of the delivery sheath tube seat is uniformly provided with anti-skid lines on the inner side of the protection assembly.

[0011] As a further improvement of the utility model technical scheme, the protection assembly comprises an elastic band sleeved on the outside of the delivery sheath tube seat, and the outer surface of the elastic band is annularly and equidistantly connected with a plurality of air bags.

[0012] As a further improvement of the utility model technical scheme, the air bags and the outer surface of the elastic band are fixed through glue.

[0013] As a further improvement of the utility model technical scheme, the end of the raised part is provided with a protruding anti-dropping ring.

[0014] As described above, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0015] 1. The utility model designs a locking structure after the threaded connection of the delivery sheath tube and the external thread end ring, the locking structure comprises a raised part, a rubber pad and a nut, after the threaded connection of the delivery sheath tube and the external thread end ring, the nut is screwed to move to the raised part, the raised part is pressed inward, the rubber pad is used to press and fix the outer surface of the delivery sheath tube, the friction is increased, the stability during the connection of the delivery sheath tube and the external thread end ring is improved, and the phenomenon of loosening is not prone to occur.

[0016] 2. The outer surface of the delivery sheath tube seat is uniformly provided with anti-skid lines on the inner side of the protection assembly, the stability during the installation of the protection assembly is improved, the phenomenon of slipping is avoided, the comfort of the operator during the holding is improved when the delivery sheath tube and the external thread end ring are connected, and the collision intensity between the placement surface and the placement is buffered when the placement is loosened after the connection is completed, and the placement stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the utility model.

[0018] Figure 2 It is a structure schematic view of the utility model that the connecting place of the delivery sheath and the delivery sheath seat.

[0019] Figure 3 It is a sectional view of the external thread end ring in the utility model.

[0020] Figure 4 It is a structure schematic view of the protective assembly in the utility model.

[0021] Reference signs: 1 - delivery sheath seat; 2 - external thread end ring; 3 - delivery sheath; 4 - developing ring; 5 - external thread; 6 - internal thread; 7 - cocking part; 8 - rubber pad; 9 - nut; 10 - hemostatic valve; 11 - connecting pipe; 12 - anti-skid line; 13 - elastic band; 14 - air bag.

[0022] Specific example

[0023] The utility model will be explained in detail below in combination with the drawings.

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model will be explained in further detail below in combination with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0025] In the embodiment, as shown in the drawings, Figure 1 An interventional delivery device, as shown in the drawings, comprises a delivery sheath seat 1, the delivery sheath seat 1 is provided with an external thread end ring 2 at one end, the internal side of the external thread end ring 2 is connected with a delivery sheath 3, the end of the delivery sheath 3 is installed with a developing ring 4, and the other end of the delivery sheath 3 is provided with an external thread 5 inside the external thread end ring 2, one end of the external thread end ring 2 is provided with a cocking part 7, and the external thread of the external thread end ring 2 is connected with a nut 9, the other end of the delivery sheath seat 1 is installed with a hemostatic valve 10, one end of the hemostatic valve 10 is communicated with a connecting pipe 11, and the external side of the delivery sheath seat 1 is connected with a protective assembly.

[0026] As shown in the drawings, Figure 1 The internal side of the external thread end ring 2 is provided with an internal thread 6 outside the connecting place of the external thread 5, the delivery sheath 3 and the external thread end ring 2 are connected through the thread, and the connection and disassembly between the delivery sheath 3 and the external thread end ring 2 are facilitated.

[0027] As shown in the drawings, Figure 1As shown in Fig. 3, the inner surface of the raised portion 7 is provided with a rubber pad 8, which is fixed by glue between the inner surface of the raised portion 7, facilitating the installation of the rubber pad 8, and facilitating the inward extrusion of the raised portion 7 when the nut 9 is tightened, so as to extrude and fix the outer surface of the delivery sheath 3 by the rubber pad 8, increase the friction, and improve the stability when the delivery sheath 3 is connected with the externally threaded end ring 2.

[0028] As shown in the accompanying drawings, Figure 1 The materials of the delivery sheath seat 1, the externally threaded end ring 2 and the delivery sheath 3 are medical-grade plastics or metals, so that the interventional delivery device has good biocompatibility and corrosion resistance, and the outer surface of the delivery sheath 3 is provided with scale lines, facilitating the observation of the insertion depth during use.

[0029] As shown in the accompanying drawings, Figure 1 The outer surface of the delivery sheath seat 1 is uniformly provided with anti-skid lines 12 on the inner side of the protection assembly, facilitating the improvement of the stability during the installation of the protection assembly, and avoiding the slipping phenomenon.

[0030] As shown in the accompanying drawings, Figure 1 and the accompanying drawings, Figure 4 The protection assembly includes an elastic band 13 sleeved on the outside of the delivery sheath seat 1, and a plurality of air bags 14 are connected at equal intervals on the outer surface of the elastic band 13 in a ring shape, which are fixed by glue between the outer surface of the elastic band 13, so that the protection assembly facilitates the improvement of the comfort of the operator during the hand holding when the delivery sheath 3 is connected with the externally threaded end ring 2, and can buffer the collision force between the placement surface when the connection is completed and the placement is loosened, improving the placement stability.

[0031] Working principle: the utility model discloses an interventional delivery device, and the specific structure is as shown in the accompanying drawings, Figure 1As shown in Fig. 4, the locking structure after the threaded connection of the delivery sheath tube 3 and the outer threaded end ring 2 is designed, the locking structure includes the raised portion 7, the rubber pad 8 and the nut 9, after the threaded connection of the delivery sheath tube 3 and the outer threaded end ring 2, the nut 9 is screwed to move to the raised portion 7, the raised portion 7 is pressed inward, the rubber pad 8 is used to press and fix the outer surface of the delivery sheath tube 3, the friction is increased, the stability when the delivery sheath tube 3 is connected with the outer threaded end ring 2 is improved, and the loosening phenomenon is not easy to occur; at the same time, the protective assembly is connected outside the delivery sheath tube seat 1, the outer surface of the delivery sheath tube seat 1 is evenly provided with the anti-skid lines 12 inside the protective assembly, the stability when the protective assembly is installed is improved, the sliding off phenomenon is avoided, the protective assembly includes the elastic band 13 sleeved outside the delivery sheath tube seat 1, the outer surface of the elastic band 13 is annularly and equidistantly connected with a plurality of air bags 14, the protective assembly is set to improve the comfort when the operator holds during the connection of the delivery sheath tube 3 and the outer threaded end ring 2, and the collision intensity between the placement surface and the placement when the nut 9 is loosened and opened after the connection is completed is buffered, and the placement stability is improved.

[0032] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An interventional delivery device comprising a delivery sheath hub (1), characterized in that: One end of the delivery sheath seat (1) is provided with an externally threaded end ring (2), the inner side of the externally threaded end ring (2) is connected with a delivery sheath tube (3), the end of the delivery sheath tube (3) is provided with a developing ring (4); The other end of the delivery sheath seat (1) is provided with a hemostatic valve (10), one end of the hemostatic valve (10) is connected with a connecting pipe (11), the outer side of the delivery sheath seat (1) is connected with a protective assembly; One end of the externally threaded end ring (2) is provided with a raised portion (7), the externally threaded end ring (2) and the raised portion (7) are provided with external threads (5) on the surface and are sleeved with a nut (9).

2. The interventional delivery device of claim 1, wherein: The inner side of the externally threaded end ring (2) is provided with internal threads (6) outside the connection position of the external threads (5), the delivery sheath tube (3) and the externally threaded end ring (2) are connected through threads.

3. The interventional delivery device of claim 1, wherein: The inner surface of the raised portion (7) is provided with a rubber pad (8), the rubber pad (8) and the inner surface of the raised portion (7) are fixed through glue.

4. The interventional delivery device of claim 1, wherein: The material of the delivery sheath seat (1), the externally threaded end ring (2) and the delivery sheath tube (3) is medical grade plastic or metal, the outer surface of the delivery sheath tube (3) is provided with scale lines.

5. The interventional delivery device of claim 1, wherein: The outer surface of the delivery sheath seat (1) is uniformly provided with anti-skid lines (12) inside the protective assembly.

6. The interventional delivery device of claim 1, wherein: The protective assembly includes an elastic band (13) sleeved outside the delivery sheath seat (1), the outer surface of the elastic band (13) is annularly and equidistantly connected with a plurality of air bags (14).

7. The interventional delivery device of claim 6, wherein: The air bags (14) and the outer surface of the elastic band (13) are fixed through glue.

8. The interventional delivery device of claim 1, wherein: The end of the raised portion (7) is provided with a protruding anti-falling ring.

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