CN208974042U - A kind of CT guidance lung puncture auxiliary blocking air enters the device of lung tissue - Google Patents

Abstract

The utility model discloses the devices that a kind of CT guidance lung puncture auxiliary blocking air enters lung tissue, including needle core, trochar and Gai Sai, needle core one end sets nut, described sleeve pipe needle is open at one end and hollow cavity of the other end equipped with spiral shell seat, when needle core is matched by nut with spiral shell seat with trochar, the exposed trochar of needle core needle point, trochar enters lung tissue backed off after random needle core, at the top of lid plug closing spiral shell seat, the one end Gai Saiwei is arranged with rubber cap and other end tool internal thread hollow cylinder, lid plug in set the double-deck flange for block set rubber cap, Gai Saiyu spiral shell seat adaptation, the cell taking gun includes biopsy needle, rubber cap is equipped with biopsy needle socket.The utility model structure is simple, easy to operate；After needle core exits, Gai Saiyu trochar end spiral shell seat is fitted close, and blocking air enters lung tissue completely and cell taking gun can pass through, and liberates operator's left hand, and effectively outside air is blocked to enter lung tissue and reduce pneumothorax complication.

Description

A kind of CT guidance lung puncture auxiliary blocking air enters the device of lung tissue

Technical field

The utility model relates to medical apparatus technical field, specifically a kind of CT guidance lung puncture auxiliary blocks air to enter The device of lung tissue.

Background technique

Although CT Guided Percutaneous Biopsies for Lung Lesions technology is through highly developed, the hair of CT guided percutaneous transthoracic lung biopsy correlation pneumothorax Life is inevitable, this causes outside air to enter lung tissue with patient's air-breathing during aspiration biopsy much relations.It is clinical Common aspiration biopsy device is made of cell taking gun, trochar, needle core, and at present clinically in biopsy procedure, trochar enters lung group Backed off after random needle core is knitted, this process needs patient to use left-hand finger closed casing needle in time, and prevent outside air from entering lung tissue, Finger is unclamped in time again when cell taking gun sleeve pipe needle, since biopsy procedure generally requires to repeat 2~3 times, is hindered manually The method of body of dying does not ensure that the complete blocking of air, and limits the left hand activity of operator with finger blocks gas, It makes troubles to biopsy procedure.

Utility model content

The utility model aim is overcome the deficiencies in the prior art, adapts to realistic development, provides a kind of CT guidance lung and wears Thorn auxiliary blocking air enters the device of lung tissue.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:

A kind of device that CT guides lung puncture auxiliary that air is blocked to enter lung tissue, including needle core, trochar, lid are filled in and are lived Rifle is examined, described needle core one end is needle point, and the other end is equipped with nut, and the shaft section of the nut is in the shape of a " convex ", axial at center Internal screw thread is penetrated through and has, the needle core is equipped with coaxial described sleeve pipe needle, and described sleeve pipe needle is open at one end and the other end Hollow cavity equipped with spiral shell seat, at spiral shell seat center axially through and there is external screw thread, the needle core and described sleeve pipe needle are logical When crossing the nut and matching with the spiral shell seat, the needle point of the needle core exposes to described sleeve pipe needle, and described sleeve pipe needle enters lung Needle core described in backed off after random is organized, is closed at the top of the spiral shell seat using lid plug, described one end Gai Saiwei is arranged with high resiliency rubber Capsule and the other end have internal thread hollow cylinder, set the double-deck flange in the lid plug and are used to block and set the rubber cap, described The shaft section of rubber cap is in the shape of an " I ", and the lid plug internal screw thread is adapted to the spiral shell seat external screw thread, and the cell taking gun includes living Needle and pikestaff are examined, the biopsy needle outer diameter is slightly less than described sleeve pipe needle internal diameter, and it is long that the biopsy needle length is greater than described sleeve pipe needle Degree, the rubber cap are equipped with biopsy needle socket, and the biopsy needle socket outer diameter is 0.1mm.

Further, the needle core length is 18cm, and diameter 0.5mm, described sleeve pipe needle length is 15cm, and outer diameter is 1.2mm。

Further, described sleeve pipe needle needle body is equipped with scale and is arranged with vernier, and the biopsy needle needle body is equipped with scale.

Further, the needle point of the needle core is lateral openings and needle point round blunt, and the needle point of the biopsy needle is hook formation.

Further, the needle core is stainless steel wire or titanium alloy wire.

The advantages of the utility model and good effect: structure is simple, easy to operate；After needle core exits, Gai Saiyu trochar End spiral shell seat is fitted close, and blocking air enters lung tissue completely and cell taking gun can pass through, and liberates operator's left hand, and have Effect blocks outside air to enter lung tissue and reduce pneumothorax complication.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is needle core structural schematic diagram；

Fig. 3 is trocar design schematic diagram；

Fig. 4 is cap plug structure schematic diagram；

Fig. 5 is rubber cap structural schematic diagram；

Mark meaning is as follows in Fig. 1-5: 1- needle core, 2- trochar, 3- lid plug, 4- cell taking gun, 5- nut, 6- spiral shell seat, 7- Rubber cap, 8- flange, 9- biopsy needle, 10- pikestaff, 11- biopsy needle socket, 12- vernier.

Specific embodiment

It is necessary to understand that, "upper", "lower", "top", "bottom", "inner", "outside" etc. refer in the description of the present invention, The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, target only the utility model for ease of description It is described with simplifying, is not that indication or suggestion institute finger must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as limiting the present invention.

It elaborates with reference to the accompanying drawing to specific embodiment of the utility model.

A kind of CT guidance lung puncture auxiliary blocking air enters the device of lung tissue, as shown in Figs. 1-5, including needle core 1, set Pipe needle 2, Gai Sai 3 and cell taking gun 4, described 1 one end of needle core are needle point, and the other end is equipped with nut 5, and the shaft section of the nut 5 is in "convex" shaped, at center axially through and there is internal screw thread, the needle core 1 is equipped with coaxial described sleeve pipe needle 2, described sleeve pipe Needle 2 is the hollow cavity that the open at one end and other end is equipped with spiral shell seat 6, at 6 center of spiral shell seat axially through and there is external screw thread, When the needle core 1 is matched by the nut 5 with the spiral shell seat 6 with described sleeve pipe needle 2, the needle point of the needle core 1 is exposed to Described sleeve pipe needle 2, described sleeve pipe needle 2 enter needle core 1 described in lung tissue backed off after random, are pushed up using the 3 closing spiral shell seat 6 of lid plug Portion, the lid plug 3 is arranged with high elastic rubber cap 7 for one end and the other end has internal thread hollow cylinder, and the lid is filled in 3 If the double-deck flange 8 sets the rubber cap 7 for blocking, the shaft section of the rubber cap 7 is in the shape of an " I ", and the lid fills in 3 internal screw threads It is adapted to 6 external screw thread of spiral shell seat, the cell taking gun 4 includes biopsy needle 9 and pikestaff 10, and 9 outer diameter of biopsy needle is slightly less than institute 2 internal diameter of trochar is stated, 9 length of biopsy needle is greater than 2 length of described sleeve pipe needle, and the rubber cap 7 is equipped with biopsy needle socket 11,11 outer diameter of biopsy needle socket is 0.1mm.

1 length of needle core is 18cm, and diameter 0.5mm, 2 length of described sleeve pipe needle is 15cm, outer diameter 1.2mm；Institute 2 needle body of trochar is stated equipped with scale and is arranged with vernier 12,9 needle body of biopsy needle is equipped with scale, is used to CT guidance The depth that advance demand flag inserting needle punctures when Transthoracic Biopsy；The needle point of the needle core 1 is lateral openings and needle point round blunt, the work The needle point for examining needle 9 is hook formation, can be improved the success rate of sampling；The needle core 1 is stainless steel wire or titanium alloy wire.

The utility model usage mode is as follows: needle core 1 is inserted into trochar 2, after agreeing with tightly, is pierced into Human Chest Wall, It is advanced into lung perilesional under CT guidance, is then log out needle core 1, trochar 2 remains in original position, in time using 3 closing set of lid plug Pipe needle 2 prevents outside air from entering lung tissue, and biopsy needle 9 enters lung tissue by the biopsy needle socket 11 on rubber cap 7, living When examining the extraction of needle 9, rubber cap 7 can block air to enter lung tissue and liberation operator's left hand completely, and outside air is blocked to enter Lung tissue and reduce pneumothorax complication.

Above-described embodiment is only the more excellent embodiment of the utility model, all according to the technical essence of the utility model pair Any simple modification, modification and alternate variation made for any of the above embodiments, are all within the scope of the technical scheme of the utility model.

Claims (5)

1. the device that a kind of CT guidance lung puncture auxiliary blocking air enters lung tissue, it is characterised in that: including needle core, casing Needle, lid plug and cell taking gun, described needle core one end are needle point, and the other end is equipped with nut, and the shaft section of the nut is in the shape of a " convex ", At center axially through and there is internal screw thread, the needle core is equipped with coaxial described sleeve pipe needle, and described sleeve pipe needle opens for one end Mouthful and the other end is equipped with the hollow cavity of spiral shell seat, at spiral shell seat center axially through and there is external screw thread, the needle core and institute When stating trochar and being matched by the nut with the spiral shell seat, the needle point of the needle core exposes to described sleeve pipe needle, the set Pipe needle enters needle core described in lung tissue backed off after random, is closed at the top of the spiral shell seat using lid plug, described one end Gai Saiwei card is set There are high elastic rubber cap and other end tool internal thread hollow cylinder, sets the double-deck flange in lid plug and be used to block and set the rubber The shaft section of Capsule, the rubber cap is in the shape of an " I ", and the lid plug internal screw thread is adapted to the spiral shell seat external screw thread, the biopsy Rifle includes biopsy needle and pikestaff, and the biopsy needle outer diameter is slightly less than described sleeve pipe needle internal diameter, and the biopsy needle length is greater than described Trochar length, the rubber cap are equipped with biopsy needle socket, and the biopsy needle socket outer diameter is 0.1mm.

2. a kind of CT guidance lung puncture auxiliary blocking air as described in claim 1 enters the device of lung tissue, feature exists In: the needle core length is 18cm, and diameter 0.5mm, described sleeve pipe needle length is 15cm, outer diameter 1.2mm.

3. a kind of CT guidance lung puncture auxiliary blocking air as described in claim 1 enters the device of lung tissue, feature exists In: described sleeve pipe needle needle body is equipped with scale and is arranged with vernier, and the biopsy needle needle body is equipped with scale.

4. a kind of CT guidance lung puncture auxiliary blocking air as described in claim 1 enters the device of lung tissue, feature exists In: the needle point of the needle core is lateral openings and needle point round blunt, and the needle point of the biopsy needle is hook formation.

5. a kind of CT guidance lung puncture auxiliary blocking air as described in claim 1 enters the device of lung tissue, feature exists In: the needle core is stainless steel wire or titanium alloy wire.