CN219184014U

CN219184014U - Adjustable transvenous intrahepatic puncture device

Info

Publication number: CN219184014U
Application number: CN202222915875.7U
Authority: CN
Inventors: 宋福生; 乔卞卞; 徐强兵; 朱永强; 孙聪聪
Original assignee: Shanghai Teyo Medical Equipment Co ltd
Current assignee: Shanghai Teyo Medical Equipment Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-06-16
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to the technical field of puncture devices, in particular to an adjustable transvenous intrahepatic puncture device which comprises a sheath tube, a needle core and a push rod, wherein the needle core is arranged in the sheath tube, one side of the needle core is fixedly connected with the push rod, one side of the push rod is fixedly connected with a rotating handle, the upper end of the push rod is provided with push rod threads, and the push rod threads are in threaded connection with the sheath tube fixing seat at the lower end of the sheath tube fixing seat. Through this device, medical personnel can drive the push rod through rotating the bar and rotate, and the push rod screw thread on the push rod is along the screw thread on the sheath pipe fixing base and is carried out back and forth movement to driven the nook closing member back and forth movement, realized the purpose of fine adjustment puncture degree of depth, increased the practicality of device.

Description

Adjustable transvenous intrahepatic puncture device

Technical Field

The utility model relates to the technical field of puncture devices, in particular to an adjustable transvenous intrahepatic puncture device.

Background

The interventional ultrasound technology is a minimally invasive operation technology which is guided in real time through ultrasound images, and realizes the establishment of a surgical operation channel and diagnosis and treatment measures such as suction, biopsy, drainage, medicine injection and the like through percutaneous puncture by using a puncture needle, a guide wire and a catheter. In practice, the interventional ultrasound technique will have different points on the puncture instrument due to different positions and purposes, but the core instrument is the puncture needle, because they are the most important and basic instruments for realizing the interventional operation. The puncture needle is generally composed of a sleeve and a needle core, and can be of various types such as an appearance structure, a length, a thickness, a needle tip change and the like according to purposes. The sleeve is mostly made of thin-wall stainless steel metal round tubes, and the surface is smooth so as to reduce puncture resistance and tissue damage. The basic principle of B ultrasonic imaging is to transmit a group of ultrasonic waves to a human body and scan the ultrasonic waves in a certain direction sequence. When the ultrasonic wave passes through human tissues, the ultrasonic wave is reflected by different tissue interfaces due to medium density difference among different tissues, the reflection is stronger as the medium density difference is larger, the ultrasonic instrument can judge the physical position and acoustic property of the organ tissues according to the monitored echo signal delay time and strength, and the B ultrasonic image is formed through the processing of a computer. When the ultrasound is used to guide the needle into the body, the physician needs to find the needle and the target organ in a complex image, so that the needle can be guided to puncture the target site as correctly and safely as possible. In the related art, the puncture device is usually used by an operator to grasp the puncture depth during the operation, the puncture depth is not convenient and fine enough to be adjusted, and the doctor needs to have abundant experience, so that the current puncture device needs to be improved to solve the problems;

the above information disclosed in this background section is only for the understanding of the background of the inventive concept and, therefore, it may contain information that does not form the prior art.

Disclosure of Invention

The utility model aims to provide an adjustable transvenous intrahepatic puncture device, which solves the problems of inconvenient and fine puncture depth adjustment in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

an adjustable transvenous intrahepatic puncture device comprises a sheath tube, a needle core and a push rod, wherein the needle core is arranged in the sheath tube, one side of the needle core is fixedly connected with the push rod, and one side of the push rod is fixedly connected with a rotating handle.

Preferably, the upper end of the push rod is provided with push rod threads, and the push rod threads are in threaded connection with the sheath tube fixing seat threads at the lower end of the sheath tube fixing seat.

Preferably, one side of the needle core is fixedly connected with the needle head.

Preferably, one side of the sheath tube is fixedly connected with the silica gel pad.

Preferably, the two sides of the rotating handle are fixedly connected with limiting blocks.

Preferably, the lower end of the needle core is provided with a developing ring.

The beneficial effects of the utility model are as follows:

through this device, medical personnel can drive the push rod through rotating the bar and rotate, and the push rod screw thread on the push rod is along the screw thread on the sheath pipe fixing base and is carried out back and forth movement to driven the nook closing member back and forth movement, realized the purpose of fine adjustment puncture degree of depth, increased the practicality of device.

Drawings

FIG. 1 is a schematic diagram of an adjustable transvenous intrahepatic lancing device according to the present utility model;

FIG. 2 is a schematic diagram of an adjustable transvenous intrahepatic puncturing device according to the present utility model;

fig. 3 is an enlarged view of fig. 2 a of an adjustable transvenous intrahepatic puncturing device in accordance with the present utility model.

In the figure: 1 sheath tube, 2 needle core, 3 push rod screw thread, 4 sheath tube fixing seat screw thread, 5 sheath tube fixing seat, 6 push rod, 7 stopper, 8 turning handle, 9 silica gel pad, 10 needle head, 11 developing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-3, an adjustable transvenous intrahepatic puncture device comprises a sheath tube 1, a needle core 2 and a push rod 6, wherein the needle core 2 is arranged in the sheath tube 1, one side of the needle core 2 is fixedly connected with the push rod 6, one side of the push rod 6 is fixedly connected with a rotating handle 8, the upper end of the push rod 6 is provided with a push rod thread 3, and the push rod thread 3 is in threaded connection with the sheath tube fixing seat thread 4 at the lower end of a sheath tube fixing seat 5.

Through this design, medical personnel can drive push rod 6 rotation through rotating bar 8, and push rod screw thread 3 on push rod 6 is along the screw thread on sheath fixing base 5 moving back and forth to the back and forth movement of core 2 has been driven, the purpose of fine adjustment puncture degree of depth has been realized.

In other embodiments, one side of the needle core 2 is fixedly connected with the needle head 10, and one side of the sheath 1 is fixedly connected with the silica gel pad 9.

By the design, the silica gel pad 9 at the front end of the sheath tube 1 avoids the possible damage of the sheath tube 1 to the human body.

In other embodiments, two sides of the rotating handle 8 are fixedly connected with the limiting blocks 7.

Through this design, the stopper 7 of changeing 8 both sides avoids changeing 8 entering sheath pipe fixing base 5.

In other embodiments, the lower end of the needle core 2 is provided with a developing ring 11.

Through this design, made things convenient for medical personnel to carry out X ray development.

In this embodiment, medical personnel can drive push rod 6 rotation through rotating bar 8, and push rod screw thread 3 on push rod 6 carries out back-and-forth movement along the screw thread on sheath pipe fixing base 5 to driven the core 2 back-and-forth movement, realized the purpose of fine adjustment puncture degree of depth, increased the practicality of device.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides an adjustable intravenous intrahepatic puncture device, includes sheath pipe (1), nook closing member (2) and push rod (6), its characterized in that, the inside of sheath pipe (1) is provided with nook closing member (2), one side fixed connection push rod (6) of nook closing member (2), one side fixed connection twist grip (8) of push rod (6).

2. An adjustable transvenous intrahepatic puncturing device as claimed in claim 1, wherein the upper end of the push rod (6) is provided with push rod threads (3), and the push rod threads (3) are in threaded connection with sheath tube fixing seat threads (4) at the lower end of the sheath tube fixing seat (5).

3. An adjustable transvenous intrahepatic puncturing device as claimed in claim 1, wherein one side of the needle core (2) is fixedly connected to the needle head (10).

4. An adjustable transvenous intrahepatic puncturing device as claimed in claim 1, wherein one side of the sheath (1) is fixedly connected with a silicone pad (9).

5. An adjustable transvenous intrahepatic puncturing device as claimed in claim 1, wherein the two sides of the handle (8) are fixedly connected with limiting blocks (7).

6. An adjustable transvenous intrahepatic puncturing device as claimed in claim 1, wherein the lower end of the needle core (2) is provided with a developing ring (11).