CN110169804B

CN110169804B - Blood vessel ligation threading apparatus

Info

Publication number: CN110169804B
Application number: CN201910579707.5A
Authority: CN
Inventors: 陈明祥; 胡文平; 李云龙; 李福平; 张为民; 李志平; 唐文帅; 黎小平
Original assignee: Third Affiliated Hospital Of Cqmu (gener Hospital)
Current assignee: Third Affiliated Hospital Of Cqmu (gener Hospital)
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2021-10-29
Anticipated expiration: 2039-06-28
Also published as: CN110169804A

Abstract

The invention relates to the technical field of tools for medical operations, in particular to a blood vessel ligation threading device, which comprises a first needle tube and a second needle tube, wherein ligatures can be penetrated through the first needle tube and the second needle tube; the first needle tube comprises a guide section and a puncturing section, the guide section can be matched with the second needle tube, a puncturing hole is formed in one end, close to the puncturing section, of the guide section, and the extending line of the guide section bypasses the upper portion of the blood vessel. The needle tubing one and needle tubing two form the passageway that supplies the ligature to pass through, have solved prior art ligature and can rub the problem of injury part human tissue in organizing the internal motion, and this scheme can only leave a thorn hole on skin simultaneously.

Description

Blood vessel ligation threading apparatus

Technical Field

The invention relates to the technical field of tools for medical operations, in particular to a blood vessel ligation threading device.

Background

In a minimally invasive surgery process, a certain part of venous blood vessels is often required to be ligated so as to achieve the purpose of treating diseases. What present blood vessel ligature adopted is the arc needle, and the afterbody winding ligature of arc needle, the arc needle pierce the tissue from the skin top layer in, pass and wear out from skin top layer opposite side from vascular below earlier, then the arc needle passes the tissue from opposite side skin reverse again in to pass from the blood vessel top, in the tissue, the arc needle plays the effect of guide ligature, thereby makes ligature winding blood vessel, ties up ligature tip is crisscross at last, thereby realizes the blood vessel ligature.

However, the above-described blood vessel ligation process has the following problems: 1. the surface layer of the skin has two stabbed holes, which affects the beauty of the skin after operation; 2. the ligation thread wraps around more human tissues around the blood vessel, the part of the human tissues is damaged during the ligation, and meanwhile, the postoperative recanalization is easy to occur due to the fact that more human tissues are tied, and the treatment effect is lost; 3. the winding path of the ligature wire is a curve, after the arc needle penetrates out of the tissue, the ligature wire loses the guide of the arc needle, and when the ligature wire is pulled and adjusted, the ligature wire can rub with the human tissue to damage part of the human tissue due to the fact that the ligature wire is thin.

Disclosure of Invention

The invention aims to provide a blood vessel ligation threading device, which solves the problem that in the prior art, a ligation thread moves in tissues to rub and injure part of human tissues when being pulled and adjusted.

The scheme is basically as follows:

the blood vessel ligation threading device comprises a first needle tube and a second needle tube, wherein the first needle tube and the second needle tube can be internally provided with ligatures in a penetrating way; and a hooking piece capable of hooking the ligature is arranged in the needle tube II in a penetrating mode.

Has the advantages that: the ligature is arranged in the needle tube I in a penetrating mode, the needle tube I and the needle tube II are butted through the butt joint port after respectively penetrating into human tissues, the needle tube I bypasses from the lower portion of the blood vessel, and the needle tube II bypasses from the upper portion of the blood vessel. After the needle tube II is in butt joint with the needle tube I, the ligature cannot automatically turn due to insufficient hardness, and the hooking piece can hook the ligature into the needle tube II from the needle tube I. The ligature is wound around the blood vessel through a channel formed by the first needle tube and the second needle tube. Like this, prior art relatively avoids ligature and human tissue direct contact, and the ligature removes the adjustment in-process, can not rub and destroy human tissue, has reduced the injury to human tissue.

Further, one of the needle tubes comprises a guide section and a puncturing section, the guide section can be matched with the second needle tube, one end, close to the puncturing section, of the guide section is provided with a puncturing hole, and the extension line of the guide section is intersected with the needle tip of the needle tube.

Therefore, the second needle tube can enter human tissues through the guide section and the penetrating hole on the first needle tube, and the phenomenon that two penetrating holes appear on skin to affect the appearance after operation is avoided. Meanwhile, the human tissues wound by the ligation threads are reduced, and the damage to the human tissues is further reduced during the bundling.

Furthermore, the guide section and the needle tube II are arc-shaped, and the radius of the guide section is the same as that of the needle tube II.

The guide section and the needle tube II are arc-shaped, so that the needle tube II can conveniently bypass the blood vessel in an arc line manner to be in butt joint with the needle tube I. The guide section has the same radius as the corresponding radius of the second needle tube, so that the second needle tube is accurately guided by the guide section.

Further, the piercing section is also arcuate. Compared with the broken line form, the utility model is convenient for the section of stabbing to pierce the human tissue and withdraw from, reduces the injury to the human tissue.

Further, the guide part is provided with a wire inlet hole. And relative to the ligature and the needle tube II, the ligature and the needle tube II enter the needle tube I from the same opening on the needle tube I, so that the ligature and the needle tube II can be conveniently controlled respectively, and the mutual influence between the needle tube II and the ligature is reduced.

Furthermore, the ligature is circuitously penetrated at an outlet of the needle tube. The ligature hooking device is beneficial to hooking the ligature by the hooking piece, and the ligature is prevented from sliding off the hooking piece.

Furthermore, the needle point portion of the needle tube I is fixed with a bulge, and a line clamping groove is formed in the bulge. The ligature is temporarily fixed through the wire clamping groove after penetrating out of the wire outlet, so that the ligature is prevented from sliding relative to the wire outlet after the penetrating section penetrates into the human tissue.

Furthermore, the hooking piece adopts a thin metal wire. The fine metal wire has better toughness and flexibility.

Drawings

Fig. 1 is a schematic structural view of a needle tube I in a first embodiment of the blood vessel ligation threading apparatus of the present invention.

FIG. 2 is a schematic view showing a needle cannula I and a needle cannula II in accordance with a first embodiment of the blood vessel ligation threading apparatus of the present invention.

FIG. 3 is a schematic view showing the needle cannula one and the needle cannula connected in two pairs according to the embodiment of the blood vessel ligation threading apparatus of the present invention.

Fig. 4 is an enlarged schematic view of the area a in fig. 3.

FIG. 5 is a schematic diagram of a second embodiment of a tip portion structure.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the puncture needle comprises a needle tube I1, a guide section 11, a puncture section 12, a puncture hole 13, a wire inlet hole 14, a ligature 9, a needle tube II 2, a blood vessel 8, a hooking part 20, a butt joint opening 21 and a bulge 3.

The first embodiment is basically as follows:

a blood vessel 8 ligation threading apparatus is shown in figure 1 and comprises a needle tube 1, wherein the needle tube 1 comprises a guide section 11 and a piercing section 12, the left end of the guide section 11 is open, the right end of the piercing section 12 is a needle point part, the guide section 11 and the piercing section 12 are both arc-shaped, and arc transition is formed between the guide section 11 and the piercing section 12. The guide section 11 is provided with a wire inlet hole 14, and the ligature 9 can be penetrated into the needle tube 1 through the wire inlet hole 14.

As shown in fig. 2, after the puncturing section 12 of the needle tube 1 enters the human tissue, the puncturing section 12 is positioned below the blood vessel 8, and the arc-shaped extension line of the guiding section 11 passes through the upper part of the blood vessel 8. The guide section 11 is internally sleeved with a needle tube II 2, the corresponding radiuses of the needle tube II 2 and the guide section 11 are the same, and in order to enable the needle tube to penetrate out of the right end of the guide section 11 and wind above the blood vessel 8, a penetrating hole 13 is formed in the transition part of the right end of the guide section 11 and the penetrating section 12. As shown in fig. 3, the second needle tube 2 penetrates through the penetrating hole 13 and enters the human tissue, and penetrates along the extension line of the guide section 11 and finally abuts against the needle tip of the first needle tube 1. After the needle tube 2 is in butt joint with the right end of the needle tube 1, the hooking piece 20 penetrates into the needle tube 2, and the hooking piece 20 can be made of thin metal wires (such as titanium alloy, aluminum alloy, copper wires and other materials which are not easy to rust).

As shown in fig. 3 and 4, the end of the hooking member 20 is provided with a thin hook; the needle tip part of the piercing section 12 is provided with an outlet for the ligature 9 to pass through. The needle tube 2 is provided with a butt joint opening 21, the needle tip part of the needle tube 1 enters the needle tube 2 through the butt joint opening 21, and the ligature 9 is hooked into the needle tube 2 by the hook at the end part of the hooking piece 20 and finally hooked out from the left end of the needle tube 2. In order to facilitate the hooking piece 20 to hook the ligature 9, the ligature 9 is circuitously penetrated at the outlet of the needle tube I1, so that a U-shaped ring convenient to hook is formed outside the outlet.

After the ligature 9 is hooked out of the needle tube II 2, the needle tube II 2 and the needle tube I1 are sequentially withdrawn from the human tissue. Compared with the prior art, the ligature threading process cannot rub the human tissue, meanwhile, the ligature 9 does not penetrate out of the skin on the other side and then reversely penetrates through the skin, so that the wrapped human tissue is less, the injury to the human tissue is reduced, and only one puncture hole is formed in the skin after operation.

The second implementation:

the difference from the first implementation is that in order to avoid the influence on the subsequent hooking of the hooking piece 20 caused by the sliding of the ligature 9 relative to the outlet of the needle tip when the needle tube 1 penetrates into the human tissue, as shown in fig. 5, the needle tip is fixed with the bulge 3, the bulge 3 is provided with the line clamping groove, the ligature 9 is fixed through the line clamping groove after penetrating out of the outlet, and when the hooking piece 20 hooks, the ligature 9 is pulled by force to automatically separate from the line clamping groove.

The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Blood vessel ligature threading apparatus, its characterized in that: the needle tube I and the needle tube II are provided with a wire outlet at the needle tip part of the needle tube I, and a butt joint port for the needle tip part of the needle tube I to enter is arranged on the needle tube II; a hooking piece capable of hooking the ligature penetrates through the needle tube II; the needle tube I comprises a guide section and a puncturing section, the guide section can be matched with the needle tube II, one end of the guide section, which is close to the puncturing section, is provided with a puncturing hole, and an extension line of the guide section is intersected with a needle tip of the needle tube; the needle point portion of the needle tube I is fixed with a protrusion, and a line clamping groove is formed in the protrusion.

2. The blood vessel ligation threader of claim 1, wherein: the guide section and the needle tube II are arc-shaped, and the radius of the guide section is the same as that of the needle tube II.

3. The blood vessel ligation threader of claim 2, wherein: the piercing section is also arcuate.

4. The blood vessel ligation threader according to any one of claims 2 to 3, wherein: and the guide section is provided with a wire inlet hole.

5. The blood vessel ligation threader of claim 4, wherein: the ligature is circuitously penetrated at an outlet of the needle tube.

6. The blood vessel ligation threader of claim 5, wherein: the hooking piece is made of thin metal wires.