CN205924120U

CN205924120U - Pneumoperitoneum needle

Info

Publication number: CN205924120U
Application number: CN201620052431.7U
Authority: CN
Inventors: 杜德晓; 张能维
Original assignee: Beijing Shijitan Hospital
Current assignee: Beijing Shijitan Hospital
Priority date: 2016-01-20
Filing date: 2016-01-20
Publication date: 2017-02-08
Anticipated expiration: 2026-01-20

Abstract

The utility model discloses a pneumoperitoneum needle, include: well hollow needle pipe, its lower extreme has the needle point, the setting is in the inner core of well hollow needle intraduct has blunt shape head, with well hollow needle manages the cavity handle 3 of intercommunication, is provided with in it to do blunt shape head salient in the spring of effort is applyed to the needle point, connect the inner core just is used for instructing blunt shape head whether stick out in the indicate block of needle point, install being used for on the cavity handle shows the transparent instruction window of indicate block position. The utility model discloses in helping the accurate pneumoperitoneum needle of judgement of art person successfully whether the abdominal cavity being gone into in the puncture, simple structure, convenient operation.

Description

A kind of veress needle

Technical field

The utility model is related to medical instruments field, more particularly, to a kind of veress needle being applied to laparoscopic surgery.

Background technology

Laparoscopic surgery is the huge advance of surgical operation, is widely used at present in clinical treatment, laparoscopic surgery The first step needs to set up pneumoperitoneum with veress needle, judges whether veress needle punctures at present and enters abdominal cavity by fall through sense and the art after puncturing The experience of person, for the thicker patient of stomach wall or for the patient that lacks experience, judges difficult.

U.S. Patent application US20120209167A1 discloses a kind of veress needle, including handle, the tool being arranged in handle There is the sighting tube of transparent window, positive indicator and negative indicator in sighting tube are installed, and be arranged on the spring in sighting tube, its Indicator is made up of spring clip, and connects veress needle inner tube by spring clip；In this veress needle is shown by positive indicator Pin is in home, and that is, interior pin is in the position stretched out from hollow needle tube, and the needle point of hollow needle tube will not cause to human body to hinder Evil；Show that by negative indicator interior pin is in uneasy all positon, that is, interior pin is in the position in indentation hollow needle tube, hollow needle Before the needle point of pipe is dashed forward, human body can be damaged.The shortcoming of this U.S. Patent application is, complex structure, is not easy to produce and make With.

Content of the invention

The purpose of this utility model is exactly for the problem overcoming above-mentioned prior art to exist, and provides a kind of veress needle, energy Patient is helped accurately to judge whether veress needle successfully punctures in abdominal cavity, structure is simple, easy to operate.

In order to realize above-mentioned purpose of the present utility model, provide technical scheme below：

A kind of veress needle, including：Hollow needle tube, its lower end has needle point；It is arranged on the inner core within described hollow needle tube, There is obtuse head；The hollow handle connecting with described hollow needle tube, its promising described obtuse head of interior setting protrudes from described The spring of needle point to apply active force；Connect described inner core and for indicating whether described obtuse head protrudes from the finger of described needle point Show block；It is arranged on the transparent indicating window for showing described instruction block position on described hollow handle.

Preferably, described instruction block one end is fixedly connected the upper end of described inner core, and its other end is against described spring.

Preferably, described instruction block is arranged in described hollow handle.

Preferably, the height of described instruction block is highly identical with described transparent indicating window.

The beneficial effects of the utility model embody in the following areas：The utility model veress needle passes through setting instruction block and thoroughly Bright indicating window interacts, and intuitively can accurately judge whether needle point enters abdominal cavity and whether obtuse head protrudes completely over pin Point, reduces operation risk, improves success rate.

Brief description

Fig. 1 is that the obtuse head of the utility model veress needle protrudes completely over the structural representation of needle point；

Fig. 2 is the sectional view shown in Fig. 1；

Fig. 3 is that the obtuse head of the utility model veress needle is fully retracted the structural representation in needle point；

Fig. 4 is the sectional view shown in Fig. 3.

Description of reference numerals：1- hollow needle tube；12- needle point；2- inner core；21- obtuse head；3- hollow handle；4- is transparent Indicating window；5- spring；6- indicates block.

Specific embodiment

As illustrated in fig. 1 and 2, the utility model provides a kind of veress needle, including：Hollow needle tube 1, its lower end has needle point 12；It is arranged on the inner core 2 within hollow needle tube 1, there is obtuse head 21；The hollow handle 3 connecting with hollow needle tube 1, in it It is provided with spring 5, spring 5 protrudes from needle point 12 to apply active force for obtuse head 21；Connect inner core 2 and be used for indicating obtuse head Whether portion 21 protrudes from the instruction block 6 of needle point 12；It is arranged on the transparent finger for display instruction block 6 position on hollow handle 3 Show window 4.

Specifically, instruction block 6 is arranged in hollow handle 3, and indicates that block 6 one end is fixedly connected the upper end of inner core 2, and it is another One end is against spring 5.In order to accurately judge whether obtuse head 21 protrudes completely over needle point 12, by the height of instruction block 6 and thoroughly Bright indicating window 4 height is set to identical.

Operation principle of the present utility model is as follows：

It is state diagram before being punctured for the utility model as illustrated in fig. 1 and 2；

As shown in Figures 3 and 4, when firmly being punctured, obtuse head 21 power that is hampered bounces back into hollow needle tube 1, now reveals Go out needle point 12 to be conducive to wearing out tissue and enter abdominal cavity；

As illustrated in fig. 1 and 2, after entering abdominal cavity, resistance disappears, and obtuse head 21 protrudes from needle point 12 again, prevents pin Point damages abdominal cavity inner tissue.

In piercing process, can judge that obtuse head 21 is by indicating the state that block 6 appears in transparent indicating window 4 All protrude from needle point 12, be partially protrude through needle point 12 and be still hidden in needle point 12.As illustrated in fig. 1 and 2, in the utility model not After being punctured or being punctured success, obtuse head 21 all protrudes from needle point 12, and now instruction block 6 is from transparent indicating window 4 Present completely；As shown in Fig. 1 and 3 (2 and 4), during the utility model is punctured, obtuse head 21 be hampered power drive The instruction block 6 of inner core 2 upper end is gradually upper to be moved, and the part that instruction block 6 presents in transparent indicating window 4 gradually decreases；In obtuse head When portion 21 is hidden in needle point 12 completely, instruction block 6 disappears in transparent indicating window 4.

During judgement, if instruction block 6 presents from transparent indicating window 4 completely, obtuse head 21 all protrudes from needle point 12； If instruction block 6 partly presents from transparent indicating window 4, obtuse head 21 is partially protrude through needle point 12；If instruction block 6 is from transparent Disappear in indicating window 4, then obtuse head 21 is hidden in needle point 12.

The shape of instruction block 6 of the present utility model and transparent indicating window 4 is not limited, as long as enabling to help patient accurate Judge whether to puncture successfully.

Although above-mentioned elaborate to the utility model, the utility model not limited to this, the skill of the art Art personnel can modify according to principle of the present utility model, therefore, all according to principle of the present utility model carry out various Modification all should be understood to fall into protection domain of the present utility model.

Claims

1. a kind of veress needle, including：

Hollow needle tube, its lower end has needle point；

It is arranged on the inner core within described hollow needle tube, there is obtuse head；

The hollow handle being connected with described hollow needle tube, is arranged promising described obtuse head and protrudes from described needle point applying work in it Spring firmly；

It is characterized in that, also include：

Connect described inner core and for indicating whether described obtuse head protrudes from an instruction block of described needle point；

It is arranged on the transparent indicating window for showing described instruction block position between described hollow handle and described hollow needle tube；

Wherein, the height of described instruction block is highly identical with described transparent indicating window；

Wherein, described spring is located in described hollow handle and against described one end indicating block.

2. veress needle according to claim 1 is it is characterised in that the other end of described instruction block is fixedly connected described inner core Upper end.