CN2332360Y

CN2332360Y - Multifunctional pleural cavity puncture needle for biopsy

Info

Publication number: CN2332360Y
Application number: CN 98206133
Authority: CN
Inventors: 李月川; 孙增涛
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-25
Filing date: 1998-06-25
Publication date: 1999-08-11
Anticipated expiration: 2008-06-25

Abstract

The utility model relates to a multifunctional pleural cavity puncture needle for biopsy, composed of a tubular needle with a handle, a core needle which can be plugged in the tubular needle, a biopsy needle, and a sealing valve plate arranged at the needle inlet point of the tubular needle. The needle ends of the tubular needle and the biopsy needle are blunt ends; the needle end of the core needle is a sharp end; a detecting needle tube integrally connected is arranged on the handle of the tubular needle; the detecting needle tube is communicated with the needle chamber of the tubular needle; the needle pole of the core needle is inserted into the tubular needle and the needle end extends out of the tubular needle; the needle pole of the core needle and the needle tube of the tubular needle are in sliding friction and match; a downward declining open slot extending towards the center of the needle pole is arranged on the wall surface of the biopsy needle near the needle end; the needle pole which is inserted in the tubular needle and provided with an open slot part extends out of the needle end of the tubular needle; the needle pole of the biopsy needle and the needle tube of the tubular needle are in sliding friction and match. The utility model is characterized in that treating operation, such as suction or drainage of pleural effusion, biopsy material taking, flushing, administration, etc. can be carried out through one-time puncture.

Description

Multi-functional pleural space aspiration biopsy pin

This utility model relates to a kind of medical pleural space puncture needle.

The pleural effusion case that causes because of a variety of causes in division of chest disease's illness at present is more and more, the suction pleural effusion all adopts normally used large size syringe needle to be equipped with needle tubing to carry out puncture suction in clinical treatment, when a large amount of hydrops of pleural space, for guaranteeing safety, need the repeated localised puncture suction, and all need go the X-x ray fluoroscopy x before each puncture or/and take the photograph X one smooth rabat and the ultrasound investigation location, increase patient financial burden.In case pneumothorax easily takes place in careless manipulation, the infection of puncture wound easily takes place simultaneously, unfavorable in treatment.Repeatedly puncture has also caused great misery to patient.Moreover, in division of chest disease's disease clinical treatment, check in order to diagnose the state of an illness often will carry out the pleura biological tissue, extracting the existing method of biological tissue sample is to adopt the biopsy needle that is made of the trocar and puncture core pin to carry out the pleural space puncture, the needle tubing side wall surface of the trocar has the mouth of drawing materials, needle body penetrates into behind the pleural space by the extruding dissection between core pin and needle tubing, the pleura that protrudes into the notch portion of drawing materials is cut down, and by taking out in the body.Such extruding dissection is extremely unreliable, often in actual clinical treatment zero load takes place that pin has to carry out secondary so that puncture for the third time.This kind biopsy needle is drawn materials mouthful from the needle tubing end distance from far away, and for extraction requires the pleura at position, its paracentesis depth is big, easily visceral pleura is penetrated and concurrent pneumothorax.

Structurally, the existing actual pleural space puncture needle that uses, biopsy needle is straight-through structure, and function singleness can not satisfy the instructions for use of different treatment operations simultaneously.

The purpose of this utility model provides the multi-functional pleural space aspiration biopsy pin of operations such as suction catheter drainage, the biopsy that a kind of one-time puncture can carry out pleural effusion drawn materials, pleural space washes, drug treatment.

Multi-functional pleural space aspiration biopsy pin is by the cast pin, can insert the core pin in the tube-shaped needle, the biopsy needle and the sealing valve block that can insert in the cast pin constitute, and the cast pin is made of with the handle that is connected with needle tubing integral body needle tubing, the whole detection needle tubing that connects is arranged on the handle, detect needle tubing and be communicated with cast pin chamber.The core pin is that the pin post of sharp end constitutes with the handle that is connected with pin post integral body by the end, core pin pin post and cast pin needle tubing adapt, the core pin inserts cast pin inner core pin pin end and stretches out outside the cast pin end, core pin pin post is that sliding friction cooperates with cast pin needle tubing, biopsy needle is that the pin post of blunt end constitutes the declivity open slot that oriented pin post center stretches on the pin post adjacent end wall with the handle that is connected with pin post integral body by the pin end.Biopsy needle pin post and cast pin needle tubing adapt, and biopsy needle inserts the interior pin cornice of cast pin has the pin post of open slot part to stretch out outside the cast pin end, and the pin post is that sliding friction cooperates with needle tubing.The sealing valve block is made by elastomeric material, on the sealing valve block plate face at least two cross one another otch is arranged.The sealing valve block is pressed abd fixed on the inserting needle mouth place of cast pin handle by the gland that has the hole of threading a needle.

The cast pin stays cast pin syringe needle with inserting that supporting use of core pin in it is carried out after the pleural space puncture core pin extracted can carry out the extraction of pleural space liquid in body, perhaps with conduit by thread a needle hole place by the sealing valve block with conduit insert in the pleural space cast pin extracted after, can carry out pleural effusion drain or flushing, administration.Biopsy needle inserted to extend in the cast pin can carry out biopsy in the pleural space and extract pleura, owing on the cast pin handle sealing valve block is housed, remaining sealing in operation is hedged off from the outer world pleural space, and the biopsy needle end is blunt end, is difficult for visceral pleura is pierced through the safety that has guaranteed biopsy.

Accompanying drawing is embodiment of the present utility model, describes this utility model in detail below in conjunction with embodiment.

Fig. 1 is the cast needle construction figure of multi-functional pleural space aspiration biopsy pin.

Fig. 2 is seal valve chip architecture figure.

Fig. 3 is the core needle construction figure of multi-functional pleural space aspiration biopsy pin.

Fig. 4 is the biopsy needle structure chart of multi-functional pleural space aspiration biopsy pin.

Multi-functional pleural space aspiration biopsy pin can insert the core pin in the cast pin by the cast pin, and biopsy needle, sealing valve block constitute.

As shown in Figure 1, the cast pin is made of with the handle (4) that is connected with blunt nosed needle tubing integral body blunt nosed needle tubing (3), and the whole detection needle tubing (2) that connects is arranged on the handle, detects the needle tubing tube chamber and is communicated with cast pin needle tubing tube chamber.Sealing valve block (5) adopts the rubber-like silicone rubber plate to make, and screws fastening overlaying at cast pin inserting needle mouth place by the gland that has the hole of threading a needle (6) (1).Shown in Fig. 2 a-d, the otch on the sealing valve block plate face can be: " X ", " ten ", " Y " etc. have at least two crossing otch to constitute.As figure; Shown in, the core pin is that the solid needle post (8) of sharp end constitutes with the handle (7) that is connected with pin post integral body by the end, and pin post and cast pin pin chamber adapt, and the core pin inserts in the cast pin, and pin post pin end stretches out outside the needle tubing, and the pin post cooperates with the needle tubing sliding friction.Biopsy needle as shown in Figure 4, by the end is the solid needle post (10) and handle (9) formation that is connected with solid needle post integral body of round end, the declivity open slot (11) that oriented pin post center stretches on the cylinder of pin post adjacent end, the pin post side outward appearance that has the open slot part is a crotch shape, pin post and cast pin needle tubing adapt, biopsy needle inserts in the cast pin, and the pin post that has the open slot part stretches out outside the needle tubing end, and biopsy needle pin post cooperates with the sliding friction of cast pin needle tubing.

When multi-functional pleural space aspiration biopsy pin uses, the core pin is inserted in the cast pin, the flap that the sealing valve block is formed by otch is hedged off from the outer world needle lumen because of elastic reaction tightly is attached on the core pin pin post.Simultaneously, core pin pin post cooperates with the needle tubing sliding friction, after the cast pin is needled into pleural space with core, slowly extracts when core pin pin end is positioned at handle portion, detect by being connected on the syringe pump that detects on the needle tubing whether pleural effusion is arranged, occur and the core pin can be extracted fully if any hydrops.Extract the otch that seals on the valve block behind the core pin and close under elastic reaction, with the needle lumen sealing, needle tubing aspirates the pleural effusion operation after testing.If will detect the needle tubing sealing during a large amount of hydrops of pleural space, by the inserting needle mouth place on the cast pin handle conduit is inserted in the pleural space, the sealing valve block seals the inlet pipe place.Conduit after inserting is extracted the cast pin, conduit is fixed on the skin, and conduit outer termination three-way valve, filter, devices such as drainage bag can carry out the constant drainage of pleural effusion.By the three-way valve conversion is the drainage speed and the drainage flow of may command hydrops, and can carry out treatment operations such as pleural space flushing, administration.When carrying out the pleural space biopsy and drawing materials, the cast pin is needled into behind the pleural space core pin extracted with core again and biopsy needle is inserted in the cast pin, after the crotch loop configuration hook that utilizes biopsy needle pin post open slot place to constitute is lived pleura, push ahead the cast pin, because the dottle pin effect of cast pin needle tubing end face cuts down the tissue on the biopsy needle hook, being gone out by biopsy needle pin cornice is complete pleura biopsy.

Claims

1, a kind of multi-functional pleural space aspiration biopsy pin, it is characterized in that by the cast pin, can insert the core pin of cast pin, the biopsy needle and the sealing valve block that can insert in the cast pin constitute, the cast pin is made of with the handle that is connected with needle tubing integral body blunt nosed pin, the whole detection needle tubing that connects is arranged on the handle, detecting the needle tubing tube chamber is communicated with cast pin pin chamber, the core pin is that the pin post of sharp end constitutes with the handle that is connected with pin post integral body by the end, core nook closing member post and cast pin needle tubing adapt, the core pin inserts cast pin inner core pin pin end and stretches out outside the cast pin end, core pin pin post is that sliding friction cooperates with cast pin needle tubing, biopsy needle is that the pin post of blunt end constitutes with the handle that is connected with pin post integral body by the pin end, the declivity open slot that oriented needle tray center stretches on the pin post adjacent end wall, biopsy needle pin post and cast pin needle tubing adapt, biopsy needle inserts the interior pin cornice of cast pin has the pin post of open slot part to stretch out outside the needle tubing end, the pin post is that sliding friction cooperates with needle tubing, the sealing valve block is made by elastic material board, on the sealing valve block plate face at least two cross one another otch are arranged, the sealing valve block is pressed abd fixed on the inserting needle mouth place of cast pin handle by the gland that has the hole of threading a needle.