CN210158673U

CN210158673U - Thorax puncture device

Info

Publication number: CN210158673U
Application number: CN201822019861.0U
Authority: CN
Inventors: 王斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-03
Filing date: 2018-12-03
Publication date: 2020-03-20
Anticipated expiration: 2028-12-03

Abstract

The utility model belongs to the technical field of thorax puncture device, a thorax puncture device is provided. The utility model discloses a sharp-pointed nook closing member of front end and the sleeve pipe of front end round blunt, nook closing member sliding fit in the sleeve pipe, the nook closing member than the sleeve pipe is longer, can realize avoiding thorax piercing depth to get into internal back, because the lung expansion causes the needle point to puncture lung, uses safer technological effect.

Description

Thorax puncture device

Technical Field

The utility model relates to a thorax puncture device technical field, concretely relates to thorax puncture device.

Background

Puncture needles are commonly used as medical devices to puncture organs, tissues or to inject drugs. The puncture is inserted into the body and cannot be immediately drawn out, the front end of the existing thorax puncture device is usually an inclined surface, and when pneumothorax puncture is carried out, the needle tip can easily puncture the lung along with the expansion of the lung.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a thorax puncture device has realized can avoiding thorax puncture device to get into internal back, because the lung expansion causes the needle point to puncture the lung, uses safer technological effect.

In order to achieve the above object, the present invention provides a thoracic cavity puncturing device, which comprises a needle core with a sharp front end and a sleeve with a blunt front end, wherein the needle core is slidably fitted in the sleeve, and the needle core is longer than the sleeve.

The technical principle and the technical effect of the scheme are as follows:

the front end of the cannula is round and blunt, so the front end of the cannula is difficult to pierce the human tissue, but the front end of the needle core is sharp, so the human tissue can be pierced through the sharp end of the needle core.

This scheme uses sleeve pipe and nook closing member jointly, and when inserting thorax piercing depth to skin in, the front end of nook closing member extends outside the sleeve pipe front end to the sharp-pointed part of nook closing member front end is as the breakthrough, and then smooth inserting in the skin, and the sleeve pipe is followed the nook closing member and is slowly extended to skin inside, with the realization with the sleeve pipe insert skin inside together with the nook closing member. When sending the sleeve pipe smoothly to the assigned position, take out the nook closing member from the intraductal, because the blunt design of the front end of sleeve pipe, consequently when the nook closing member is taken out from the intraductal back of taking out, the situation that can not appear being impaled even inside lung expansion can make lung tissue obtain effectual protection, avoids taking place medical injury safe and reliable more.

Furthermore, the tail end of the sleeve is provided with a joint, so that the sleeve is convenient to operate.

Furthermore, still including with the connecting pipe that the sleeve pipe tail end cup jointed can be connected to the syringe through the connecting pipe, passes through the connecting pipe and can more facilitate the use syringe.

Further, the inner wall that connects is equipped with the internal thread, the head end of connecting pipe is equipped with first connector, first connector outer wall be equipped with the external screw thread of internal thread adaptation, connect and pass through screw-thread fit with first connector, make its connection that can be more stable.

Further, the tail end of connecting pipe is equipped with the second connector, the second connector is equipped with the luer joint of being connected with the syringe nipple, adopts luer joint and is connected with the syringe, can make the leakproofness and the stability of connecting obtain fine promotion.

Furthermore, a switch is arranged on the connecting pipe, so that the on-off of the connecting pipe is controlled conveniently through the switch.

Furthermore, the tail end of the stylet is provided with a needle seat, so that the stylet can be pulled and pushed conveniently.

Further, the sleeve pipe hard pipe, hard pipe can be more convenient stretch into internally, and this sheathed tube lateral wall is equipped with the length scale, and this scale indicates the length distance to sleeve pipe front end, and the length scale convenient to use person's audio-visual inspection is stretched into internal sleeve pipe length.

Furthermore, needle handles extend from two sides of the needle seat, and the needle core can be more conveniently drawn out by adopting the needle handles.

Furthermore, the sleeve comprises a feedback section, two opposite cutting lines are axially arranged on the side wall of the feedback section, a plurality of inner convex starting points are arranged on the inner wall of the feedback section, the inner convex starting points are distributed among the cutting lines, annular outer protrusions are arranged on the side wall of the needle core corresponding to the inner convex starting points, when the needle core extends forwards in the sleeve, the annular protrusions cross the inner convex starting points to interact and further feed back to the outside of the needle core, so that an operator can be told the position where the needle core is inserted, the inner convex starting points and the annular outer protrusions are matched, no matter the rotating angle of the needle core, the annular protrusions can interact with the inner convex starting points, meanwhile, the cutting lines are arranged on the sleeve, so that the sleeve has certain expansion deformation, and the annular outer protrusions can smoothly cross the inner convex starting points.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic view of a bushing according to an embodiment of the present invention.

Reference numerals:

1-a needle core; 2-a sleeve; 3-a needle seat; 4-a linker; 5-a second connector; 6-internal thread; 7-a needle handle; 8-annular outer protrusions; 9-inward convex starting point; 10-a cutting line; 11-a connecting tube; 12-a switch; 13-first connector.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1-3:

example 1:

as shown in fig. 1, the embodiment of the present invention includes a stylet 1 with a sharp front end, a cannula 2 with a blunt front end, and a connecting tube 11 sleeved with the tail end of the cannula 2. The diameter is not more than 2.5 mm, and the length is not more than 6.5 cm. Combine shown in fig. 3, connecting pipe 11 is the rubber hose, is equipped with switch 12 on connecting pipe 11 after the sleeve pipe is fixed in vivo, with the fixed and bushing work of connecting pipe, the front end of nook closing member 1 sets up sharp-pointed structure and can inserts human tissue more easily, sets up the structure of the round blunt with the front end of sleeve pipe 2 and just hardly punctures the tissue, specifically sets up the sleeve pipe 2 front end into the horizontal incision, notched edge rounding off avoids appearing sharp edge. The needle core 1 is in sliding fit in the sleeve 2, the needle core 1 being longer than the sleeve 2. The needle core 1 is inserted into the sleeve 2 in advance, wherein the front end of the needle core 1 extends out of the front end of the sleeve 2, when the needle core is inserted into skin, the sharp part of the front end of the needle core 1 is used as a break and is inserted into the skin, and the sharp end part can easily enter the skin, and the sleeve 2 is sleeved outside the needle core 1, so that the sleeve 2 can enter the needle core 1 and the needle core 1 can enter the sleeve, and after the whole body reaches a pointing position, the sleeve 2 is kept still, and the needle core 1 is pulled out outwards.

The device also comprises a connecting pipe which is sleeved with the tail end of the sleeve 2, and a switch is arranged on the connecting pipe. The tail end of the sleeve 2 is provided with a joint 4. The inner wall that connects 4 is equipped with the internal thread, the head end of connecting pipe is equipped with first connector 13, first connector 13 outer wall be equipped with the external screw thread of internal thread adaptation. The first connector 13 is screwed to the connector.

The tail end of the connecting pipe is provided with a second connector 5, and the second connector 5 is provided with a luer connector connected with the injector nipple. The tail end of the needle core 1 is provided with a needle seat 3, and needle handles 7 are arranged on two sides of the needle seat 3 in an extending mode. The needle core 1 and the sleeve 2 can be more easily operated through the combination of the needle handle 7 and the joint 4.

The hard pipe of the sleeve 2 can be more conveniently stretched into the body, the side wall of the sleeve 2 is provided with length scales, the length scales represent the length distance to the front end part of the sleeve 2, and the length scales are convenient for a user to visually check the length of the sleeve 2 stretched into the body.

Example 2:

as shown in fig. 2, based on embodiment 2, embodiment 3 further includes the following features:

the sleeve 2 comprises a feedback section, two opposite cutting lines 10 are axially arranged on the side wall of the feedback section, the position of the sleeve 2 is easier to deform through the cutting lines 10, the elastic coefficient of the sleeve is improved, an inner convex starting point 9 is arranged on the inner wall of the feedback section, an annular outer protrusion 8 is arranged on the side wall of the needle core 1 corresponding to the inner convex starting point 9, when the needle core 1 slides in the sleeve 2, the inner convex starting point 9 and the annular outer protrusion 8 interact to provide feedback for an operator, and the operator is reminded of the position where the needle core 1 stretches into.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A thoracic cavity puncture device is characterized by comprising a needle core (1) with a sharp front end and a sleeve (2) with a blunt front end, wherein the needle core (1) is in sliding fit in the sleeve (2), and the needle core (1) is longer than the sleeve (2).

2. The thoracentesis device according to claim 1, further comprising a connection tube (11) engaging with the tail end of the cannula (2).

3. A thoracentesis device according to claim 2, characterized in that the tail end of the cannula (2) is provided with a connector (4).

4. A thoracentesis device according to claim 3, characterized in that the inner wall of the connector (4) is provided with an internal thread (6), the head end of the connecting tube (11) is provided with a first connector (13), and the outer wall of the first connector (13) is provided with an external thread adapted to the internal thread (6).

5. A thoracentesis device according to claim 3, characterized in that the tail end of the connecting tube (11) is provided with a second connector (5), and the second connector (5) is provided with a luer connected to a syringe nipple.

6. A thoracentesis device according to claim 2, characterized in that a switch is provided on the connecting tube (11).

7. The thoracentesis device according to claim 1, characterized in that the tail end of the needle core (1) is provided with a needle seat (3).

8. The thoracentesis device according to claim 7, characterized in that a needle handle (7) extends from both sides of the needle stand (3).

9. A thoracentesis device according to claim 1 wherein the cannula (2) is a rigid tube, the side wall of the cannula (2) is provided with a length scale indicating the length distance to the front end of the cannula.

10. A thoracentesis device according to any of claims 1-9, characterized in that the cannula (2) comprises a feedback section, the side wall of the feedback section is axially provided with two opposite cutting lines (10), the inner wall of the feedback section is provided with a plurality of inner convex points (9), the inner convex points (9) are distributed between the cutting lines (10), and the side wall of the needle core (1) is provided with an annular outer convex (8) corresponding to the inner convex points (9).