CN217472000U - Ligation tool for varicose veins - Google Patents

Abstract

The utility model provides a ligature instrument of varicosity, include: the lead needle comprises a needle body section, a needle head section and a needle point section which are sequentially connected, wherein the needle head section is arranged in a bent manner, and a needle hole for leading a lead to pass through is formed in the needle point section; the sheath tube is removably sleeved outside the lead; the barb pole can remove to pass the sheath pipe, and the barb pole is including the pole handle section, shaft section and the hook head section that connect gradually, and the hook mouth of hook head section is towards the pole handle section. The technical scheme of this application has solved the problem that the closed effect is inaccurate after vein trunk carries out the treatment among the correlation technique effectively.

Description

Ligation tool for varicose veins

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to a ligature instrument of varicosity.

Background

Varicose veins refer to the tortuosity and expansion of veins caused by blood stasis, weak vein walls and other factors. Varicose veins can occur in various parts of the body, such as hemorrhoids, which are actually varicose veins, and clinically visible varicose veins of the esophagus and the stomach, spermatic varicose veins, abdominal wall varicose veins and the like. The most common site of varicose veins is in the lower extremities. It is worth emphasizing that varicose veins are secondary manifestations of other pathologies.

The varicose vein of lower limb has the treatment methods of wearing elastic socks, injecting hardener, removing operation and the like, and the deep venous valve has incomplete function and can be used for valve repair operation, endoscopic traffic branch ligation and the like. Varicose veins of the lower limbs can also indicate the existence of other diseases, and the primary disease needs to be actively treated.

For greater saphenous vein varices or lesser saphenous vein varices, the greater saphenous vein starts at the medial end of the arch of the dorsal veins of the foot, runs through the anterior of the medial malleolus, accompanies the saphenous nerve along the medial edge of the calf, runs through about 2cm behind the medial condyle of the femur, enters the medial part of the thigh, accompanies the medial cutaneous nerve of the thigh, gradually goes upwards, crosses the saphenous vein hiatus hole below the outer part of the pubic tubercle, and converges into the femoral vein, and the convergence point is called the saphenous point. The small saphenous vein is one of the major superficial veins of the lower leg. The small saphenous vein is located at the lateral side of foot, starts from the arch of dorsal venous of foot, runs upward along the back of lower leg after the lateral malleolus, passes through the calf muscle and between the outer two ends to the popliteal fossa, and is injected into the popliteal vein through the fascia. The vein has many small branches that coincide with the branches of the greater saphenous vein during its journey. Because of the dynamic relationship, the small saphenous vein is easy to block, most of the venous return is easy to generate varicosity, and some of the venous return can form thrombus and generate thromboangiitis; leg ulcer is formed after the varicose vein is broken and cannot be healed for a long time.

The following three treatment modalities are currently included for either major or minor varicose veins:

the first traditional stripping method has the advantages of direct vision solution and definite effect. But needs to be cut open, the wound surface is too large, the recovery is slow, and the infection is easy; the second category, radiofrequency, laser or minimally invasive, although recovery from minimally invasive is fast, has the drawback of not being able to close exactly the venous trunk with a diameter of more than 14mm, and is costly; the third is a sclerosing agent or glue, but the effect is not exact for venous trunk closure and it is likely to cause the sclerosing agent or glue to pass through the trunk into the lungs.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a ligature instrument of varicosity to solve the problem that the closed effect is inaccurate after the vein trunk is treated among the correlation technique.

In order to achieve the above object, the present invention provides a varicose vein ligation tool, comprising: the lead needle comprises a needle body section, a needle head section and a needle point section which are sequentially connected, wherein the needle head section is arranged in a bent manner, and a needle hole for leading a lead to pass through is formed in the needle point section; the sheath tube is removably sleeved outside the lead; the barb pole can remove to pass the sheath pipe, and the barb pole is including the pole handle section, shaft section and the hook head section that connect gradually, and the hook mouth of hook head section is towards the pole handle section.

Further, the needle body section is connected with the needle head section through an arc transition section.

Further, the barb rod further comprises an elastic piece arranged on the rod body section, and one end, far away from the rod handle section, of the elastic piece extends into the hook opening of the hook head section and is in butt fit with the hook head section.

Further, the elastic member is cylindrical.

Further, a notch which is matched with one end, far away from the rod handle section, of the elastic piece in an abutting mode is arranged on the inner wall of the hook head section.

Further, the notch is arranged towards the inside of the hook mouth of the hook head section.

Further, an arrow indicator is arranged on the rod handle section, and the direction of the arrow indicator is consistent with the extending direction of the tip end of the hook head section.

Furthermore, the rod body section is columnar, and the diameter of the rod body section gradually becomes smaller along the direction from the rod handle section to the hook head section.

Further, hydrophilic coatings are arranged on the surfaces of the thread guiding needle and the barb rod.

Furthermore, the needle body section is columnar; a first anti-skid structure is arranged on the needle body section; a second anti-slip structure is arranged on the rod handle section.

Use the technical scheme of the utility model, the ligature instrument of varicosity includes: a guide wire needle, a sheath tube and a barb rod. The lead wire needle comprises a needle body section, a needle head section and a needle point section which are connected in sequence, the needle head section is arranged in a bending mode, and a needle hole for a lead wire to penetrate through is formed in the needle point section. The sheath tube is removably sleeved outside the lead. The barb pole can remove to pass the sheath pipe, and the barb pole is including the pole handle section, shaft section and the hook head section that connect gradually, and the hook mouth of hook head section is towards the pole handle section. Under ultrasound guidance, a catheter may be used to pierce a first site of the skin, with the head of the catheter penetrating the periphery of the trunk of the varicose vein. The paralytic tumescent liquid is injected through the catheter to form an operation space around the main trunk of the vein. This facilitates minimally invasive surgery in the operating space. The needle body section of the thread guiding needle is operated, so that the needle tip section of the thread guiding needle with the thread guiding needle penetrates into the operation space from the first position of the skin and bypasses from the lower part of the vein trunk, and the vein trunk is positioned in the needle head section. And continuously operating the needle body section of the lead needle to enable the needle point section to puncture the second part of the skin, exposing the lead wire penetrating in the needle hole of the needle point section out of the second part of the skin, pulling the lead wire out of the needle hole of the needle point section, and removing the lead needle from the first part of the skin. The sheath pipe can be removably sleeved outside the lead from a first position of the skin, the end part of the sheath pipe is positioned in the operation space, the rod handle section of the barb rod is operated, the hook head section of the barb rod penetrates into the operation space along the sheath pipe, the hook head section hooks the lead positioned in the operation space and moves outwards of the skin, and the lead withdraws to the operation space from a second position of the skin along with the movement of the barb rod. When the hook head segment is removed from the first position of the skin, the lead is carried along to pass through the vein trunk and out of the first position of the skin. The sheath is withdrawn from the first site of the skin and the lead is ligated to the main vein to form a ligation to complete the ligation procedure. Therefore, when a minimally invasive surgery is adopted, the main vein trunk can be tied through the varicose vein ligation tool, definite ligation is realized, and the varicose vein closure device has a definite closure effect after varicose vein treatment. Therefore, the technical scheme of this application has solved the problem that the effect is inaccurate after vein trunk carries out the treatment among the relevant art effectively.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view illustrating a structure of a thread guiding needle according to an embodiment of a ligation tool for varicose veins of the present invention;

FIG. 2 shows a schematic structural view of a sheath of the varicose ligation tool of FIG. 1;

FIG. 3 illustrates a schematic view of a barb rod of the varicose ligation tool of FIG. 1;

FIG. 4 is a schematic view of the varicose ligation tool of FIG. 1 in a first operative condition;

FIG. 5 is a schematic view showing a second operational state of the varicose ligation tool of FIG. 1;

FIG. 6 is a schematic view showing a third operational state of the varicose ligation tool of FIG. 1;

fig. 7 is a schematic view showing a fourth operation state of the ligation tool for varicose veins of fig. 1;

fig. 8 is a schematic view showing a fifth operation state of the ligation tool for varicose veins of fig. 1;

FIG. 9 is a schematic view showing a sixth operational state of the varicose ligation tool of FIG. 1;

fig. 10 is a schematic view showing a seventh operation state of the ligation tool for varicose veins of fig. 1; and

fig. 11 is a schematic view showing an eighth operation state of the ligation tool for varicose veins of fig. 1.

Wherein the figures include the following reference numerals:

1. skin; 2. an operating space; 3. a main vein; 10. a lead wire; 20. a thread guide needle; 21. a needle body section; 22. a needle section; 23. a needle tip section; 231. a pinhole; 30. a sheath tube; 40. a barb rod; 41. a shank segment; 42. a shaft section; 43. a hook head section; 44. an elastic member; 45. arrows indicate the signs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 11, the ligation tool for varicose veins of the present embodiment includes: a thread guide needle 20, a sheath 30 and a barb rod 40. The thread guiding needle 20 comprises a needle body section 21, a needle head section 22 and a needle point section 23 which are connected in sequence, wherein the needle head section 22 is arranged in a bending way, and a needle hole 231 for the thread guiding 10 to pass through is arranged on the needle point section 23. The sheath 30 is removably fitted over the lead 10. The barb rod 40 removably passes through the sheath 30, and the barb rod 40 comprises a rod handle section 41, a rod body section 42 and a hook head section 43 which are connected in sequence, and the hook mouth of the hook head section 43 faces the rod handle section 41.

By applying the technical solution of this embodiment, the lead needle 20 includes a needle body section 21, a needle head section 22 and a needle tip section 23 connected in sequence, the needle head section 22 is disposed in a bent manner, and the needle tip section 23 is provided with a needle hole 231 for the lead 10 to pass through. The barb rod 40 comprises a rod handle section 41, a rod body section 42 and a hook head section 43 which are connected in sequence, and the hook mouth of the hook head section 43 faces the rod handle section 41. Under ultrasound guidance, a catheter may be used to pierce a first site of the skin 1, with the head of the catheter penetrating the periphery of the trunk 3 of the varicose vein. The paralytic tumescent liquid is injected through the catheter to form an operation space 2 around the main vein trunk 3. This facilitates performing minimally invasive surgery in the operating space 2. The shaft section 21 of the needle lead 20 is operated, so that the needle tip section 23 of the needle lead 20 with the lead 10 is inserted into the operation space 2 from the first position of the skin 1 and passes through the lower part of the vein trunk 3, and the vein trunk 3 is positioned in the needle tip section 22. The body segment 21 of the lead needle 20 is operated continuously, the needle point segment 23 punctures the second place of the skin 1, the lead wire 10 which is threaded in the needle hole 231 of the needle point segment 23 is exposed out of the second place of the skin 1, the lead wire 10 is pulled out of the needle hole 231 of the needle point segment 23, and the lead needle 20 is removed from the first place of the skin 1. The sheath 30 is removably sleeved outside the lead 10 from a first position of the skin 1, the end part of the sheath 30 is positioned in the operation space 2, the rod handle section 41 of the barb rod 40 is operated, the hook head section 43 of the barb rod 40 penetrates into the operation space 2 along the sheath 30, the hook head section 43 hooks the lead 10 positioned in the operation space 2 and moves towards the outside of the skin 1, and the lead 10 withdraws into the operation space 2 from a second position of the skin 1 along with the movement of the barb rod 40. When the hook head section 43 is removed from the first location of the skin 1, it carries the lead 10 out of the first location of the skin 1 around the vein trunk 3. The sheath 30 is withdrawn from the first site of the skin 1 and the lead 10 is ligated to the main vein 3 to form a ligation to complete the ligation procedure. Thus, when a minimally invasive surgery is adopted, the vein trunk 3 can be tightened by the varicose vein ligation tool, so that definite ligation is realized, and further, the varicose vein closure device has a definite closure effect after varicose vein treatment. Therefore, the technical scheme of the embodiment effectively solves the problem of inaccurate closing effect after the vein trunk is treated in the related art. The palsy swelling solution comprises 0.9% of normal saline, 2% of lidocaine, 1% of epinephrine and 5% of sodium bicarbonate.

The thread guiding needle 20 and the barb rod 40 of the present embodiment may be formed as separate bodies or may be formed integrally. When the thread guiding needle 20 and the barb rod 40 are integrally formed, the needle body section 21 of the thread guiding needle 20 is connected with the rod handle section 41 of the barb rod 40.

As shown in fig. 1 to 5, the shaft section 21 and the needle section 22 are connected by a circular arc transition section for easy processing and no scratch is caused when the shaft section 21 penetrates into the skin.

As shown in fig. 3 and 8, the barb rod 40 further includes an elastic member 44 disposed on the shaft section 42. One end of the elastic piece 44 far away from the stem section 41 extends into the hook mouth of the hook head section 43 and is in abutting fit with the hook head section 43. In this way, when the hooking section 43 hooks the lead wire 10 located in the operation space 2 and moves to the outside of the skin 1, the elastic member 44 can block the hooking opening of the hooking section 43, and prevent the lead wire 10 in the hooking opening of the hooking section 43 from falling off the hooking section 43.

As shown in fig. 3 and 8, the elastic member 44 has a cylindrical shape for easy processing without causing scratches when the hook head section 43 penetrates the skin.

As shown in fig. 3 and 8, the hooking head section 43 is provided on its inner wall with a notch in abutting engagement with an end of the elastic member 44 remote from the stem section 41. The elastic piece 44 is in abutting fit with the notch, so that the elastic piece 44 can stably block the hook opening of the hook head section 43, and the end of the elastic piece 44 far away from the stem section 41 is prevented from sliding relative to the inner wall of the hook head section 43.

As shown in fig. 3 and 8, the notch is disposed toward the inside of the hook mouth of the hook head section 43 for facilitating abutting engagement with the end of the resilient member 44 remote from the stem section 41.

As shown in fig. 3 and 8, the shank section 41 is provided with an arrow indicator 45, and the arrow indicator 45 is directed in the same direction as the direction in which the tip of the hook head section 43 extends. Thus, when the barb rod 40 is used, the orientation of the hook opening of the hook head section 43 located under the skin 1 can be known by looking at the direction of the arrow mark 45, and the lead wire 10 in the hook opening of the hook head section 43 can be further prevented from coming off the hook head section 43. It should be noted that the arrow mark 45 is pointed in the same direction as the direction in which the tip of the hook head section 43 extends, which means that the center line of the hook head section and the arrow mark are located in the same plane.

As shown in fig. 3 and 8, the shaft section 42 is cylindrical for easy forming, and the diameter of the shaft section 42 gradually decreases from the handle section 41 to the hook section 43.

As shown in fig. 1 to 9, in order to reduce resistance during use of the ligation tool for varicose veins, the surfaces of the thread guide needle 20 and the barb rod 40 are each provided with a hydrophilic coating.

As shown in fig. 1 to 3, the needle body section 21 is cylindrical for easy processing. In order to prevent the needle body section 21 from sliding easily when the needle 20 is used, a first anti-sliding structure is provided. In order to prevent the barb rod 40 from sliding easily when in use, the rod handle section 41 is provided with a second anti-slip structure.

After the ligation operation is completed by using the ligation tool for varicose veins of the embodiment, a catheter is used to pierce the position of the other end opposite to the ligation position of the vein trunk 3, a radio frequency catheter (not shown in the figure) is used to penetrate into the vein trunk 3 from the opposite other end, the radio frequency catheter is used for heating, the heat of the radio frequency catheter is conducted to the inner wall of the vein trunk 3, so that the inner wall of the vein trunk 3 is contracted, and the radio frequency catheter is withdrawn to enable the inner wall of the vein trunk 3 to be in a closed state. When the venous trunk 3 is caused to be in a closed state, blood in the venous trunk 3 will be rewashed into other healthy veins. Of course, a sclerosing agent treatment may be performed at a position of the other end opposite to the ligation portion of the trunk vein 3 after completion of the ligation operation using the ligation tool for varicose veins of the present embodiment.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A tool for ligating varicose veins, comprising:

the lead wire needle (20) comprises a needle body section (21), a needle head section (22) and a needle point section (23) which are sequentially connected, wherein the needle head section (22) is arranged in a bent mode, and a needle hole (231) for a lead wire (10) to penetrate through is formed in the needle point section (23);

the sheath tube (30) is sleeved outside the lead (10) in a removable mode;

the barb rod (40) removably passes through the sheath pipe (30), the barb rod (40) includes pole handle section (41), shaft section (42) and gib head section (43) that connect gradually, the hook mouth of gib head section (43) is towards pole handle section (41).

2. The varicose vein ligation tool according to claim 1, wherein the shaft section (21) and the needle section (22) are connected by a circular arc transition section.

3. The varicose ligation tool according to claim 1, wherein the barb rod (40) further comprises an elastic member (44) provided on the body section (42), an end of the elastic member (44) remote from the handle section (41) extending into a hook mouth of the hook head section (43) and being in abutting engagement with the hook head section (43).

4. The tool for ligating varicose veins according to claim 3, wherein said elastic member (44) has a cylindrical shape.

5. A varicose vein ligation tool according to claim 3, wherein the hooking section (43) is provided on its inner wall with a notch in abutting engagement with an end of the resilient member (44) remote from the stem section (41).

6. A varicose vein ligation tool according to claim 5, wherein the notch is provided towards the inside of the hook mouth of the hook head section (43).

7. The tool for ligating varicose veins according to claim 1, wherein an arrow indicator (45) is provided on said lever handle section (41), said arrow indicator (45) pointing in the same direction as the direction in which the tip of said hooking section (43) extends.

8. The varicose vein ligation tool according to claim 1, wherein the shaft section (42) has a cylindrical shape, and the diameter of the shaft section (42) is gradually reduced in a direction from the shaft section (41) to the hooking section (43).

9. The ligation tool for varicose veins according to claim 1, wherein the surface of the thread guiding needle (20) and the barb rod (40) are each provided with a hydrophilic coating.

10. The tool for ligaturing varicose veins according to claim 1, characterized in that the needle body section (21) is cylindrical; a first anti-skid structure is arranged on the needle body section (21); and a second anti-skid structure is arranged on the rod handle section (41).

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