CN219397491U - A graduated tumor paracentesis needle - Google Patents

Abstract

The utility model relates to the technical field of tumor puncture, in particular to a tumor peritoneal puncture needle with scales, comprising a needle tube, the outer side of the entrance of the front end of the needle tube is buckled and connected with a needle head, the inside of the needle tube is buckled and slidingly connected with a piston, the center of the tail end of the piston is fixedly connected with a piston rod, the surface of the piston rod is slidably connected with an end cover, the end cover is buckled and connected to the tail end of the needle tube, the tail end of the piston rod is fixedly connected with an end seat, one side of the needle tube is integrated with an observation window, and the surface of the observation window is integrated with a scale Ruler, the outer side of the observation window is fixedly connected with a guide seat, and the outer side of the guide seat is buckled and slidably connected with a movable frame. The utility model solves the problem that the traditional tumor peritoneal puncture needles are mostly ordinary puncture needles, which do not have a scale mark. When inserting the needle, it is only operated by feeling. However, the operation only by feeling often makes mistakes, so that the puncture needle is inserted too deep and damages the internal organs of the patient.

Description

A graduated tumor paracentesis needle

technical field

The utility model relates to the technical field of tumor puncture, in particular to a graduated tumor abdominal cavity puncture needle.

Background technique

Paracentesis refers to directly puncturing the peritoneal cavity from the front wall of the abdomen with a puncture needle or catheter to extract ascites. It is a common treatment method in medical surgery. Its purpose is to guide the pus, blood, and fluid accumulated in the abdominal cavity to the outside of the body.

At present, most of the traditional tumor peritoneal puncture needles are ordinary puncture needles, which do not have a scale mark, and are operated only by feeling when inserting the needle. However, mistakes are often made when the operation is only based on feeling, which makes the puncture needle go too deep and damages the patient's abdominal organs.

Utility model content

The purpose of this utility model is to provide a tumor peritoneal puncture needle with a scale to solve the problem that the traditional tumor peritoneal puncture needles are mostly ordinary puncture needles, which do not have a scale mark, and are operated only by feeling when inserting the needle.

In order to achieve the above object, the utility model provides the following technical solutions:

A tumor peritoneal puncture needle with scales, comprising a needle tube, the outer side of the entrance of the front end of the needle tube is buckled and connected with a needle head, the inside of the needle tube is buckled and slidably connected to a piston, the center of the tail end of the piston is fixedly connected to a piston rod, the surface of the piston rod is slidably connected to the tail end of the needle tube, the end cap is buckled and connected to the tail end of the needle tube, the tail end of the piston rod is fixedly connected to an end seat, and an observation window is integrated on one side of the needle tube. The outer side of the guide seat is snap-fitted and slidingly connected with a movable frame, the front end of the movable frame is fixedly connected with a retainer, the retainer covers the front end of the needle tube, and the tail of the movable frame is integrated with a pointer.

Preferably, the guide seat and the middle part of the movable frame and the position corresponding to the observation window are all provided with through holes, and the guide seat is fixed on the needle tube.

Preferably, the inner front end of the guide seat is fixedly connected with a limit block, and the limit block is located at the front side of the pointer.

Preferably, the interior of the movable frame and the front end of the pointer are fixedly connected with a limit seat, and the center of the limit seat is threaded with a limit bolt.

Preferably, the retainer and the needle are designed as concentric shafts, and side lugs are integrated on both sides of the tail end of the needle tube.

Compared with the prior art, the beneficial effects of the utility model are:

In the utility model, by setting up an observation window on the needle tube and integrating a scale on the observation window, it is convenient to observe the amount of liquid taken and the amount of liquid taken, and a movable frame with a guide seat is arranged outside the observation window, and a retainer and a pointer are integrated on the movable frame. During abdominal puncture, the depth of the needle can be observed through the pointer and the scale, which can help the doctor to accurately judge the depth of the needle, instead of blindly relying on feeling, so as not to cause the trocar to go too deep and damage the internal organs of the patient. It has good marketing value. , and at the same time, when the tumor peritoneal needle is not in use, the needle can be protected by the retainer to prevent it from being damaged.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a graduated tumor peritoneal needle of the present invention;

Fig. 2 is the enlarged schematic diagram of the structure of A district in Fig. 1;

Fig. 3 is a diagram of the exposed state of the needle head of a graduated tumor peritoneal needle of the present invention;

Fig. 4 is a separation state diagram of a needle tube and a guide seat of a graduated tumor peritoneal needle of the present invention;

Fig. 5 is a front cross-sectional view of a needle tube of a tumor peritoneal puncture needle with a scale of the present invention.

In the figure: 1, needle tube; 2, needle head; 3, piston; 4, piston rod; 5, end cover; 6, end seat; 7, observation window; 8, scale; 9, guide seat; 10, movable frame; 11, retaining ring; 12, pointer; 13, limit block;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work all belong to the scope of protection of the present invention.

Please refer to Figure 1-5, the utility model provides a technical solution:

A tumor peritoneal puncture needle with scales, comprising a needle tube 1, the outer side of the entrance of the front end of the needle tube 1 is buckled and connected with a needle head 2, the inside of the needle tube 1 is buckled and slidably connected to a piston 3, the center of the tail end of the piston 3 is fixedly connected to a piston rod 4, the surface of the piston rod 4 is slidably connected to an end cap 5, the end cap 5 is buckled and connected to the tail end of the needle tube 1, and the tail end of the piston rod 4 is fixedly connected to an end seat 6, which meets the structural function design of a traditional ordinary tumor puncture needle and achieves the function of extracting peritoneal fluid; the needle tube An observation window 7 is integrated on one side of the observation window 7, and a scale 8 is integrated on the surface of the observation window 7, which is convenient for real-time observation of the amount of liquid taken in the needle tube and the state of the liquid taken when pumping liquid; the outer side of the observation window 7 is fixedly connected with a guide seat 9, and the outer side of the guide seat 9 is snap-fit slidingly connected with a movable frame 10. The retainer increases the contact area with the patient's body surface, achieving the function of a simple auxiliary support for needle insertion into the flesh, and improving needle insertion stability; the tail side of the movable frame 10 is integrated with a pointer 12, which contacts the patient's body through the retainer. After the needle enters the flesh, it will drive the movable frame to rise, and then drive the pointer to move up along the guide seat, and then cooperate with the scale to help doctors accurately understand the depth of the needle.

In this embodiment, please refer to Fig. 4 and Fig. 1 , there are through holes in the middle of the guide seat 9 and the movable frame 10 and the position corresponding to the observation window 7, and the guide seat 9 is fixed on the needle tube 1, which satisfies the cooperation between the pointer and the scale on the observation window, so as to facilitate accurate reading of the needle insertion depth.

In this embodiment, please refer to FIG. 2 , the inner front end of the guide seat 9 is fixedly connected with the limit block 13, and the limit block 13 is located on the front side of the pointer 12, so as to limit the position of the movable frame, prevent it from detaching from the guide seat, and ensure the running stability.

In this embodiment, please refer to FIG. 2 , the inside of the movable frame 10 and the front end of the pointer 12 are fixedly connected with the limit seat 14, and the center of the limit seat 14 is threaded with the limit bolt 15, so that when the tumor puncture needle is not in use, the limit bolt and the limit seat are tightened, and then the movable frame is fixed at the protective position, so that the front end of the needle can be protected by the retainer, which can effectively prevent its damage.

In this embodiment, please refer to FIG. 3 , the retainer 11 and the needle 2 are designed as concentric shafts, and side lugs 16 are integrated on both sides of the tail end of the needle tube 1 to facilitate the force on the needle tube and facilitate puncture into the needle and extraction of peritoneal effusion.

It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed or which are inherent to such process, method, article or apparatus. without further restrictions. The phrase "the inclusion of an element defined by ... does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising said element". Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a tumour abdominal cavity pjncture needle of taking scale, includes needle tubing (1), the front end import department outside buckle of needle tubing (1) is connected with syringe needle (2), the inside buckle sliding connection of needle tubing (1) has piston (3), the tail end center fixedly connected with piston rod (4) of piston (3), the surface sliding connection of piston rod (4) has end cover (5), end cover (5) buckle is connected in the tail end of needle tubing (1), the tail end fixedly connected with end seat (6) of piston rod (4), its characterized in that: one side of needle tubing (1) is integrated with observation window (7), the surface integration of observation window (7) has scale (8), the outside fixedly connected with guide holder (9) of observation window (7), the outside buckle sliding connection of guide holder (9) has movable frame (10), the front end fixedly connected with guard ring (11) of movable frame (10), guard ring (11) cover in the front end of needle tubing (1), the tail side of movable frame (10) is integrated with pointer (12).

2. A graduated tumor abdominal cavity puncture needle according to claim 1, characterized in that: through holes are formed in the middle of the guide seat (9) and the middle of the movable frame (10) and correspond to the observation window (7), and the guide seat (9) is fixed on the needle tube (1).

3. A graduated tumor abdominal cavity puncture needle according to claim 1, characterized in that: the front end of the inside of the guide seat (9) is fixedly connected with a limiting block (13), and the limiting block (13) is positioned at the front side of the pointer (12).

4. A graduated tumor abdominal cavity puncture needle according to claim 1, characterized in that: the movable frame is characterized in that a limiting seat (14) is fixedly connected to the inside of the movable frame (10) and positioned at the front end of the pointer (12), and a limiting bolt (15) is connected to the center thread of the limiting seat (14).

5. A graduated tumor abdominal cavity puncture needle according to claim 1, characterized in that: the guard ring (11) and the needle head (2) are designed to be concentric shafts, and side lugs (16) are integrated on two sides of the tail end of the needle tube (1).