CN216777173U

CN216777173U - Puncture needle for cardiothoracic department

Info

Publication number: CN216777173U
Application number: CN202122822114.2U
Authority: CN
Inventors: 刘则烨
Original assignee: Fuwai Hospital of CAMS and PUMC
Current assignee: Fuwai Hospital of CAMS and PUMC
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-06-21
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a puncture needle for cardiothoracic surgery, which comprises a front needle cylinder, a rear needle cylinder, a sealing ring, a micro spring, a steel ball and a bolt cap, wherein a liquid discharge port is arranged on the side wall of the rear needle cylinder, the bolt cap is sleeved outside the liquid discharge port in an interference manner, a connecting column is fixedly connected to the front end of the rear needle cylinder, the sealing ring is sleeved outside the connecting column, the connecting column is inserted in the front needle cylinder in an interference manner to form a cavity, and the micro spring and the steel ball are embedded and installed in the cavity. Easy puncture operation goes on, and the hydrops in the tissue can conveniently be extracted in the setting in water conservancy diversion hole, and the drawing liquid efficiency is higher.

Description

Puncture needle for cardiothoracic department

Technical Field

The utility model relates to the technical field of puncture needles, in particular to a puncture needle for cardiothoracic department.

Background

The cardiothoracic surgery is also called thoracic surgery and thoracic surgery, and is mainly used for treating surgical diseases of the chest, including chest trauma, empyema, esophageal diseases, mediastinal diseases, lung diseases and cardiovascular surgical diseases, and the common diseases of the cardiothoracic surgery include: lung cancer, chicken breast, thymoma, rib fracture, acute myocardial infarction, pleural effusion, aortic dissection, hiatus hernia, infundibulum chest, bullous alveolus, heart failure, pericardial effusion, sudden death, etc.;

when carrying out puncture extraction pleural effusion, cardiothoracic surgery because the needle tubing capacity is limited, need exchange new syringe after extracting a certain amount of hydrops, when trading, extracts the syringe needle and causes the rocking easily, can aggravate patient's puncture damage, can't continuously extract pleural effusion, has brought high degree of difficulty requirement for medical personnel's operation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a puncture needle for cardiothoracic surgery, which solves the technical problems that when the cardiothoracic surgery is used for puncturing and extracting pleural effusion, because the capacity of a needle tube is limited, a new injector needs to be replaced after a certain amount of effusion is extracted, when the effusion is replaced, the needle head is pulled out, shaking is easily caused, puncture injury of a patient is aggravated, the pleural effusion cannot be extracted continuously, and extremely high difficulty requirements are brought to the operation of medical staff.

In order to solve the technical problem, the puncture needle for cardiothoracic department provided by the utility model comprises a front needle cylinder, a rear needle cylinder, a sealing ring, a micro spring, a steel ball and a bolt cap, wherein a liquid outlet is arranged on the side wall of the rear needle cylinder, the bolt cap is sleeved outside the liquid outlet in an interference manner, a connecting column is fixedly connected to the front end of the rear needle cylinder, the sealing ring is sleeved outside the connecting column, the connecting column is inserted in the front needle cylinder in an interference manner to form a cavity, and the micro spring and the steel ball are embedded in the cavity.

Preferably, a needle tube is fixedly embedded at the front end of the front needle tube, a slope is arranged at the end part of the needle tube, and a plurality of flow guide holes are distributed on the peripheral wall of the end part of the needle tube.

Preferably, the inner wall of the front needle cylinder is provided with a rectangular groove, and one side of the rectangular groove is provided with a round hole.

Preferably, the connection column is of a hollow structure, and a plurality of micropores are formed in the front end of the connection column.

Preferably, the rear needle cylinder is inserted into an injection port of the injector, a piston is embedded in the injector and connected with an injection rod, and one end of the injection rod penetrates through the injector and is fixedly connected with a handle.

Preferably, the outer side of the liquid outlet can be sleeved with a connecting cap in an interference manner, the connecting cap is connected with a liquid conveying pipe, a plastic flow regulator is installed on the outer side of the liquid conveying pipe, and the other end of the liquid conveying pipe is connected with a collecting bag.

Compared with the prior art, the puncture needle for cardiothoracic department provided by the utility model has the following beneficial effects: the utility model provides a puncture needle for cardiothoracic department, which can form a one-way valve structure at a needle cylinder through the arrangement of a micro spring and a steel ball, can extract pleural effusion when medical staff pulls a syringe handle, can transmit the extracted pleural effusion to a collection bag along a perfusion tube for storage when pushing the syringe handle, does not need to insert and pull a needle head, has small action amplitude, safe operation, slope surface arrangement, easy puncture operation, flow guide hole arrangement, convenient effusion extraction in tissues and higher liquid extraction efficiency.

Drawings

FIG. 1 is a combined structure view of a needle cylinder in a puncture needle for cardiothoracic surgery of the present invention;

FIG. 2 is an exploded view of a needle cylinder assembly of a puncture needle for cardiothoracic surgery according to the present invention;

FIG. 3 is an enlarged view of the structure at the position A in FIG. 2 of the cardiothoracic puncture needle of the present invention;

fig. 4 is a sectional view showing the structure of a puncture needle for cardiothoracic surgery of the present invention.

Reference numbers in the figures: 1. a front needle cylinder; 101. a needle tube; 102. a slope surface; 103. a flow guide hole; 104. a rectangular groove; 105. a circular hole; 2. a rear needle cylinder; 201. a liquid discharge port; 202. connecting the column; 203. micropores; 3. a seal ring; 4. a micro-spring; 5. steel balls; 6. a bolt cap; 7. an injector; 701. a piston; 702. an injection rod; 703. a handle; 8. a connecting cap; 801. a transfusion tube; 9. and (4) collecting the bags.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment, as shown in fig. 1 to 4, the puncturing needle for cardiothoracic surgery of the present invention comprises a front needle cylinder 1, a rear needle cylinder 2, a sealing ring 3, a micro spring 4, steel balls 5 and a bolt cap 6, wherein a side wall of the rear needle cylinder 2 is provided with a liquid discharge port 201, the bolt cap 6 is sleeved outside the liquid discharge port 201 in an interference manner, the front end of the rear needle cylinder 2 is fixedly connected with a connection column 202, the outer side of the connection column 202 is sleeved with the sealing ring 3, the connection column 202 is inserted into the front needle cylinder 1 in an interference manner to form a cavity, the micro spring 4 and the steel balls 5 are embedded and installed in the cavity, a liquid loading enters the rear needle cylinder 2, and when a certain amount of liquid is reached, the operation is stopped, the micro spring 4 extrudes the steel balls 5 to block the circular hole 105 under the action of the micro spring 4, and a one-way valve structure can be formed at the needle cylinder.

The front end of the front needle cylinder 1 is fixedly embedded with a needle tube 101, the end of the needle tube 101 is provided with a slope surface 102, a plurality of flow guide holes 103 are distributed on the outer peripheral wall of the end of the needle tube 101, the slope surface 102 is easy to puncture, the flow guide holes 103 can conveniently extract accumulated liquid in tissues, and the liquid extraction efficiency is higher.

The inner wall of the front needle cylinder 1 is provided with a rectangular groove 104, a round hole 105 is formed in one side of the rectangular groove 104, the steel ball 5 slides in the rectangular groove 104, and effusion can flow through a gap between the steel ball 5 and the rectangular groove 104.

The connection column 202 is of a hollow structure, a plurality of micropores 203 are formed in the front end of the connection column 202, and the micropores 203 are used for liquid accumulation circulation and cannot be blocked by the steel balls 5.

The rear needle cylinder 2 is inserted into an injection port of the injector 7, a piston 701 is embedded in the injector 7, the piston 701 is connected with an injection rod 702, one end of the injection rod 702 penetrates through a handle 703 fixedly connected with the injector 7, the pleural effusion can be extracted when the handle 703 of the injector 7 is pulled, and the extracted pleural effusion can be transmitted to the collection bag 9 along the infusion tube 801 to be stored when the handle 703 of the injector 7 is pushed.

The connection cap 8 can be sleeved on the outer side of the liquid discharge port 201 in an interference manner, the connection cap 8 is connected with an infusion tube 801, a plastic flow regulator is installed on the outer side of the infusion tube 801, the other end of the infusion tube 801 is connected with a collection bag 9, the plastic flow regulator is used for controlling the liquid discharge state of the infusion tube 801, the plastic flow regulator is a commonly-used medical regulator, the bolt cap 6 is detached before operation, and the connection cap 8 is installed on the outer side of the liquid discharge port 201.

The working principle is as follows: as shown in fig. 4, the rear syringe 2 is inserted into the injection port of the injector 7, the connecting cap 8 is sleeved with the liquid discharge port 201, the plastic flow regulator is closed, air in the injector 7 is exhausted, the injector 7 is held by hand, the needle tube 101 is inserted into the tissue with the effusion, the handle 703 is pulled outwards, the effusion enters the rear syringe 2 under the action of negative pressure suction, the operation is stopped after reaching a certain amount, the micro spring 4 extrudes the steel ball 5 to seal the round hole 105 under the action of the micro spring 4, the plastic flow regulator is opened, when the handle 703 of the injector 7 is pushed in this way, the extracted effusion can be transmitted to the collection bag 9 along the infusion tube 801 to be stored, according to the above mode, the effusion can be continuously extracted, the needle head does not need to be inserted and pulled out, and the action range is small.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a puncture needle for cardiothoracic department, includes preceding cylinder (1), back cylinder (2), sealing washer (3), micro spring (4), steel ball (5) and cap (6) of being tied, its characterized in that, back cylinder (2) lateral wall is provided with leakage fluid dram (201), cap (6) are tied in leakage fluid dram (201) outside interference cup joint, back cylinder (2) front end fixedly connected with links up post (202), sealing washer (3) have been cup jointed in the outside of linking up post (202), it is formed with the cavity in cylinder (1) before establishing to link up post (202) interference insertion, micro spring (4) and steel ball (5) are inlayed and are established and install in this cavity.

2. The cardiothoracic puncture needle according to claim 1, characterized in that a needle tube (101) is fixedly embedded at the front end of the front needle tube (1), a slope surface (102) is arranged at the end part of the needle tube (101), and a plurality of flow guide holes (103) are distributed on the peripheral wall of the end part of the needle tube (101).

3. A puncture needle for cardiothoracic surgery as claimed in claim 1, wherein a rectangular groove (104) is formed on an inner wall of the front cylinder (1), and a circular hole (105) is formed at one side of the rectangular groove (104).

4. A cardiothoracic puncture needle according to claim 1, wherein the adapter pillar (202) has a hollow structure, and the front end of the adapter pillar (202) is provided with a plurality of micro holes (203).

5. The puncturing needle for the cardiothoracic department according to claim 1, wherein the rear needle cylinder (2) is inserted into an injection port of an injector (7), a piston (701) is embedded in the injector (7), the piston (701) is connected with an injection rod (702), and one end of the injection rod (702) penetrates through the injector (7) and is fixedly connected with a handle (703).

6. The cardio thoracic puncture needle according to claim 1, wherein a connection cap (8) is sleeved outside the liquid discharge port (201) in an interference manner, the connection cap (8) is connected with a perfusion tube (801), a plastic flow regulator is installed outside the perfusion tube (801), and the other end of the perfusion tube (801) is connected with a collection bag (9).