CN103736194A

CN103736194A - Rotary cannula structure

Info

Publication number: CN103736194A
Application number: CN201310756086.6A
Authority: CN
Inventors: 黄耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-27
Filing date: 2013-12-27
Publication date: 2014-04-23

Abstract

The invention provides a rotary cannula structure. The structure comprises an outer sleeve and a puncture needle, wherein the inner wall of the outer sleeve is convexly provided with a reinforcing rib, the puncture needle is inserted in the outer sleeve, and one end of the puncture needle is provided with a needle tip point part which protrudes one end of the outer sleeve; when the puncture needle is taken out from the outer sleeve, the inner space of the outer sleeve is supported by the reinforcing rib, so as to prevent the outer sleeve from being flattened due to deformation.

Description

A kind of rotary insertion tubular construction

Technical field

The present invention relates to a kind of rotary insertion tubular construction, especially a kind of its inboard wall of tube body is provided with the cannula structures of avoiding the ribs that body is crushed.

Background technology

In order to help patient that intrathoracic consumptive disease liquid is discharged, improve the symptom of sufferer, accelerate the speed of sufferer rehabilitation, in medical treatment, utilize medical tubing (for example intubate) to penetrate the intrathoracic to extract consumptive disease liquid out of patient.General intubate has a body and one and penetrates the contact pin of body, after the thoracic cavity of being pierced through sufferer by contact pin penetrates thoracic cavity by body, contact pin is taken out in body again, just can extract the intrathoracic consumptive disease liquid of patient out by body.

If these medical tubing form by harder material, in use easily and patient penetrate wound friction, and cause the situation of pain, hemorrhage or routed wound, cause conditions of patients day by day serious; Therefore, comparing lower medical tubing changes soft material matter into and forms, can coordinate structoure of the human body to bend, push or the action of reversing, and then give patient comfort capitally, but medical tubing is the feature of distortion easily, when being out of shape being subject to external force, it easily because being crushed, causes the feelings button that obstruction or drain have some setbacks.

Summary of the invention

The object of the present invention is to provide this kind of rotary insertion tubular construction, avoid body to be crushed.

The present invention is a kind of rotary insertion tubular construction, comprises, and trocar sheath, outer sleeve inner wall convexes with ribs; Puncture needle, puncture needle is arranged in trocar sheath, and wherein one end of puncture needle has needle tip, and needle tip is exposed to wherein one end of trocar sheath.

In some embodiments, the other end of puncture needle has needle section, needle section backstop is outside the other end of trocar sheath, trocar sheath comprises body and conical lid, conical lid is socketed on wherein one end of body, ribs is convexly set in the inwall of body, and conical lid has through hole, and needle tip is from the protruding trocar sheath that exposes of through hole.

In some embodiments, trocar sheath comprises the other end of a joint adaptor cup jointing body, and wherein the other end of puncture needle has needle section, and needle section backstop is outside joint.

Beneficial effect of the present invention is: the present invention is easy and simple to handle, when extruding or torsion, space in body is because there has been the support of ribs, do not cause the inwall of body to be depressed into and be affixed and cannot circulate, cannula structures has effectively improved that the easy stress deformation of medical tubing is crushed and the shortcoming of blocking.

Accompanying drawing explanation

Fig. 1 is the cannula structures schematic diagram of one embodiment of the present invention;

Fig. 2 is cannula structures and the intubate body cutaway view of one embodiment of the present invention;

Fig. 3 is the cannula structures schematic perspective view of one embodiment of the present invention

The specific embodiment

Below in conjunction with drawings and the specific embodiments the present invention is described in further detail explanation.

The invention provides a kind of rotary insertion tubular construction, as depicted in figs. 1 and 2, comprise a trocar sheath 100 and puncture needle 200, trocar sheath 100 comprises body 110, conical lid 120 and joint 130, body 110 is that two ends are open, for soft material is made, convexes with at least one ribs 111 on the inwall of body 110, on the inwall of body 110, convex with 111, three ribs 111 of three ribs along the circumferencial direction annular arrangement of body 110 in body 110.Each ribs 111 is strip, respectively the other end to body 110 from wherein one end of body 110 straight-line extension.The side of body 110 also offers a side opening 112.Conical lid 120 is socketed in wherein one end of body 110, the cone tip part of conical lid 120 offers through hole 121,130 of joints are socketed in the other end of body 110, within puncture needle 200 is located in trocar sheath 100, is used in and supports trocar sheath 100 in order to the thoracic cavity trocar sheath 100 being penetrated to sufferer.Puncture needle 200 is made for metal, and its length is slightly long, and at trocar sheath 100, wherein one end of puncture needle 200 has a needle tip 210, and the other end has a needle section 220.Needle tip 210 is from the protruding trocar sheath 100 that exposes of through hole 121,220 backstops of needle section outside joint 130 to fix the position of puncture needle 200 in trocar sheath 100.

The thoracic cavity that a kind of rotary insertion tubular construction of the present invention pierces through sufferer by the needle tip 210 of protruding dew is penetrated body 110 in the thoracic cavity of sufferer by the guiding of conical lid 120 again.When the position of body 110 arranges after appropriate, just puncture needle 200 is taken out in body 110, operator can be by pulling needle section 220 that puncture needle 200 is pulled out in body 110.The intrathoracic waste liquid of sufferer sucks in trocar sheaths 100 by side opening through hole 111 and 112, and joint 130 is extracted intrathoracic sufferer waste liquid out to be connected to a negative pressure source for being socketed another medical tubing.

After puncture needle 200 is taken out in body 110, body 110 just can bend arbitrarily distortion.When body 110 is subject to bending distortion and is out of shape, or cause when distortion because bearing negative pressure, the ribs 111 of body 110 inwalls provides support the space in body 110, therefore body 110 is unlikely and is flattened completely and its inwall is fitted, this and prevent that body 110 from blocking or the waste liquid in it flows and have some setbacks.

In this practicality, do not limit the magnitude setting of vertical bar shape ribs 111, depending on the required different support force of body 110 or flow, on the inwall of body 110, can convex with the ribs 111 of four vertical bar shapes yet.

Second embodiment of this practicality provides a kind of rotary insertion tubular construction, as shown in Figure 3, comprise trocar sheath 100 and puncture needle 200, trocar sheath 100 comprises body 110, conical lid 120 and joint 130, body 110 is that two ends are open, for soft material is made, on the inwall of body 110, convex with a ribs 111, ribs 111 in the shape of a spiral, it is spirally extended to the other end of body 110 from wherein one end of body 110, the side of body 110 also offers a side opening 112, conical lid 120 is socketed on wherein one end of body 110, the cone tip part of conical lid 120 offers a through hole 121, 130 of joints are socketed in the other end of body 110.

Within puncture needle 200 is arranged in trocar sheath 100, for supporting trocar sheath 100, be beneficial to trocar sheath 100 to penetrate the thoracic cavity of sufferer.Puncture needle 200 is made for metal, and its length is slightly longer than trocar sheath 100, and wherein one end of puncture needle 200 has a needle tip 210, and the other end has a needle section 220.Needle tip 210 is from the protruding trocar sheath 100 that exposes of through hole 121,220 backstops of needle section outside joint 130 to fix the position of puncture needle 200 in trocar sheath 100.In the present embodiment, trocar sheath penetrates in the thoracic cavity of sufferer, and the intrathoracic waste liquid of sufferer sucks in trocar sheath 100 by side opening 112, and joint 130 is for being socketed another medical tubing to be connected to a negative pressure source. and intrathoracic sufferer waste liquid is extracted out.

When body 110 is subject to bending distortion and is out of shape, or cause when distortion because bearing negative pressure, the ribs 111 of body 110 inwalls provides support the space in body 110, therefore body 110 is unlikely and is flattened completely and its inwall is fitted, this and prevent that body 110 from blocking or the waste liquid in it flows and have some setbacks.

The cannula structures of this practicality is supported the inner space of body 110 by the ribs 111 in body 110.When body 110 is subject to external force and while being out of shape, the space in body 110, because there has been the support of ribs 111, does not cause the inwall of body 110 be affixed and cannot circulate.Therefore compared to known medical tubing, easily because distortion is crushed, block, the cannula structures of this practicality has effectively been improved the shortcoming of prior art.

Claims

1. a rotary insertion tubular construction, is characterized in that, comprise, and trocar sheath (100), described trocar sheath (100) inwall convexes with ribs (110), puncture needle (200), described puncture needle (200) is arranged in described trocar sheath (100), wherein one end of described puncture needle (200) has needle tip (210), described needle tip (210) is exposed to wherein one end of described trocar sheath (100), the other end of described puncture needle (200) has needle section (220), described needle section (220) backstop is outside the other end of described trocar sheath (100), described trocar sheath (100) comprises body (110) and conical lid (120), described conical lid (120) is socketed on wherein one end of described body (110), described ribs (110) is convexly set in the inwall of described body (110), described conical lid (120) has through hole, described needle tip (210) is from the protruding described trocar sheath (100) that exposes of described through hole.

2. cannula structures according to claim 1, it is characterized in that, described trocar sheath (100) comprises that the described joint of a joint (130) (130) is socketed the other end of described body (110), the other end of wherein said puncture needle (200) has needle section (220), described needle section (220) backstop is outside described joint (130), and described ribs (111) in the shape of a spiral.