CN112370099A - Surgical suturing device under endoscope - Google Patents

Abstract

Translated fromChinese

本发明公开了一种内镜下的外科式缝合装置,属于医疗器械技术领域，包括缝针、缝合线和持针器，所述缝针包括针尖部和针柄部，所述针尖部设置于所述针柄部的前端，所述针尖部的远离所述针柄部的一端为三棱锥形，所述针柄部的横截面形状为正多边形，所述缝合线的一端与所述针柄部的后端连接，所述持针器用于夹持所述缝针进行缝合。其结构简单，操作方便，可迅速高效缝合内镜术后较大的创面与穿孔，并可缝合肌层，强度足够，有助于降低内镜术后迟发性出血、穿孔、感染率与再行外科手术风险。

The invention discloses an endoscopic surgical suturing device, belonging to the technical field of medical devices, comprising a suture needle, a suture thread and a needle holder. The front end of the needle handle portion and the end of the needle tip portion away from the needle handle portion are triangular pyramids, the cross-sectional shape of the needle handle portion is a regular polygon, and one end of the suture is connected to the needle handle. The rear end of the part is connected, and the needle holder is used to hold the suture needle for suture. It has a simple structure and is easy to operate. It can quickly and efficiently suture larger wounds and perforations after endoscopic surgery, and can suture the muscle layer. Risk of surgery.

Description

Surgical suturing device under endoscope

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a surgical suturing device under an endoscope.

Background

Endoscopic minimally invasive treatment of neoplastic lesions of the digestive tract (e.g., EMR, ESD) has been widely performed. At present, there is no unified view on treatment of endoscopic postoperative wound surfaces, but the larger the postoperative wound surface is, the higher the probability of occurrence of complications such as delayed bleeding and perforation is, and the slower the wound surface healing speed is. At present, the suture of the wound surface under the endoscope mainly comprises the modes of clamping by a metal clip, purse-string suture by combining the metal clip with a nylon rope and the like. For a wound with a larger diameter, the metal clip is not easy to simultaneously clip mucous membranes on two sides of the wound, so that the metal clip is discarded and fails to operate, the wound clamped by the metal clip is poor in tightness, and digestive juice and gastrointestinal contents enter the wound and an abdominal cavity through gaps, so that infection can be caused. The metal clip is combined with the nylon rope to perform the pouch type suture, so that the tightness of the wound surface can be increased, the tension of the wound surface is reduced, and the occurrence of delayed bleeding, perforation and infection is reduced, but the problems of difficult operation of a special part (such as cardia), shallow suture layers, insufficient strength and the like still exist. In a word, the metal clip and the metal clip combined nylon ring have the problems of only clipping and closing the mucosa, insufficient suture strength, easy loosening and the like, and can cause serious consequences such as peritonitis and the like.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a surgical suture apparatus under an endoscope, which has a simple structure and is convenient to use, and can better solve the above problems.

The embodiment of the invention is realized by the following steps:

the embodiment of the invention provides a surgical suture device under an endoscope, which comprises a suture needle, a suture line and a needle holder, wherein the suture needle comprises a needle tip part and a needle handle part, the needle tip part is arranged at the front end of the needle handle part, one end of the needle tip part, which is far away from the needle handle part, is triangular pyramid, the cross section of the needle handle part is in a regular polygon shape, one end of the suture line is connected with the rear end of the needle handle part, and the needle holder is used for clamping the suture needle for suture.

Optionally, the needle holder includes chuck, connecting pipe, handle and control mechanism, the chuck set up in the one end of connecting pipe, the handle sets up in the other end of connecting pipe, control mechanism set up in on the connecting pipe, control mechanism with the chuck is connected and is used for controlling the chuck is opened or is pressed from both sides tightly.

Optionally, the chuck includes first clamping piece and second clamping piece, the middle part of first clamping piece with the middle part of second clamping piece support in through the pivot in the one end of connecting pipe, first clamping piece with the second clamping piece forms cuts the fork structure, first clamping piece includes first clamping part and first splenium of pressing, the second clamping piece includes second clamping part and second splenium of pressing, first clamping part with form the clamping area between the second clamping part, control mechanism respectively with first splenium of pressing with the second is pressed the splenium and is connected.

Optionally, the control mechanism comprises a first connecting piece, a second connecting piece, a sliding rod, a sliding sleeve, a connecting rope and a return spring, the slide rod is arranged in the connecting pipe and is in sliding fit with the connecting pipe, one end of the first connecting sheet is connected with one end of the first pressing part, one end of the second connecting sheet is connected with one end of the second pressing part, one end of the first connecting sheet far away from the first pressing part and one end of the second connecting sheet far away from the second pressing part are both hinged with the front end of the slide rod, the sliding sleeve is sleeved at the outer side of the connecting pipe and is close to one end of the handle, one end of the connecting rope is connected with the rear end of the sliding rod, the other end of the connecting rope is connected with the sliding sleeve, the return spring is sleeved on the sliding rod, one end of the return spring is connected with the sliding rod, and the other end of the return spring is connected with the inner wall of the connecting pipe.

Optionally, a handle is arranged on the sliding sleeve.

Optionally, the outer side wall of the connecting pipe is further provided with a limiting part, and the limiting part is located on one side, far away from the handle, of the sliding sleeve.

Optionally, the suture is a fishbone line.

Optionally, the needle handle has a cross-sectional shape of a regular quadrilateral or a regular hexagon.

The invention has the beneficial effects that:

the surgical suturing device under the endoscope provided by the embodiment of the invention has the advantages of simple structure and convenience in operation, can be used for quickly and efficiently suturing a larger wound surface and a perforation after the endoscope operation, can be used for suturing a muscular layer, has enough strength, and is beneficial to reducing delayed bleeding, perforation, infection rate and surgical operation risk after the endoscope operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of an endoscopic surgical stapling apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the construction of the needle;

fig. 3 is a schematic structural diagram of the control mechanism.

In the figure: 11-sewing a needle; 111-needle tip; 112-needle handle; 12-a suture thread; 13-needle holder; 131-a chuck; 1311-a first clip; 1312-a second jaw; 132-a connecting tube; 133-a handle; 134-a control mechanism; 1341-a first connecting tab; 1342-a second connecting piece; 1343-a slide bar; 1344-a sliding sleeve; 1345-connecting a rope; 1346-a return spring; 1347-a handle; 1348-limiting part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

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, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "front", "back", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely used for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides an endoscopic surgical suturing device including aneedle 11, asuture 12, and aneedle holder 13.

Referring to fig. 2, theneedle 11 includes aneedle tip portion 111 and aneedle shank portion 112, theneedle tip portion 111 is disposed at a front end of theneedle shank portion 112, and an end of theneedle tip portion 111 away from theneedle shank portion 112 has a triangular pyramid shape, so that theneedle 11 penetrates tissue when suturing. The cross-sectional shape of theneedle handle 112 is a regular polygon, which facilitates the firm holding, and may be, for example, a regular quadrangle or a regular hexagon, in this embodiment, the cross-sectional shape of theneedle handle 112 is a regular hexagon.

Thesuture 12 is a fishbone line. Suture 12 may be implemented as a strong knot-free barbed suture 12. Thesuture 12 has the following advantages: 1. the method is fast and economical, and knotting is not needed; no assistant is needed; the operation time is saved; the wire consumption is less; continuous multilayer sewing; the wound was quickly sutured. 2. Better curative effect, can replace single-point ligation, and has uniform tension distribution; a watertight barrier is formed, and the wound hemostasis effect is good; the wound is healed quickly, and the curative effect is better; the scar is slight. 3. No complications associated with knots; slipping after no knot; no post-nodal pain; no visible line knots. 4. The biological performance is good, the selected material synthesizes the high molecular poly (p-dioxanone), and the poly (p-dioxanone) is completely decomposed into carbon dioxide and water within 180 days after being implanted into a human body, has no biological antigenicity, and has better biocompatibility in clinical application. 5. The chemical property is good, the carbon dioxide and the water are finally and completely decomposed in a human body, no chemical residue is generated, and the clinical application is nontoxic and harmless.

One end of thesuture 12 is detachably connected to the rear end of theneedle grip 112, so that thesuture 12 can be easily replaced, and the other end of thesuture 12 is a free end.

Referring to fig. 3, theneedle holder 13 includes acollet 131, aconnecting tube 132, ahandle 133, and acontrol mechanism 134.

Theclamping head 131 includes afirst clamping piece 1311 and asecond clamping piece 1312, a middle portion of thefirst clamping piece 1311 and a middle portion of thesecond clamping piece 1312 are supported at one end of the connectingpipe 132 through a rotating shaft, thefirst clamping piece 1311 and thesecond clamping piece 1312 form a scissor-type structure, thefirst clamping piece 1311 includes a first clamping portion and a first pressing portion, thesecond clamping piece 1312 includes a second clamping portion and a second pressing portion, and a clamping area is formed between the first clamping portion and the second clamping portion. Ahandle 133 is disposed at the other end of the connectingtube 132, and thehandle 133 is disposed to facilitate grasping of theneedle holder 13 by the medical staff.

Thecontrol mechanism 134 includes a first connectingtab 1341, a second connectingtab 1342, aslide bar 1343, aslide sleeve 1344, a connectingcord 1345, and areturn spring 1346. The slidingrod 1343 is disposed inside theconnection pipe 132 and is in sliding engagement, the axial direction of thesliding rod 1343 is the same as the axial direction of theconnection pipe 132, and thesliding rod 1343 can slide along the axial direction of theconnection pipe 132; one end of the first connectingpiece 1341 is connected with one end of the first pressing part, one end of the second connectingpiece 1342 is connected with one end of the second pressing part, one end of the first connectingpiece 1341 far away from the first pressing part and one end of the second connectingpiece 1342 far away from the second pressing part are hinged with the front end of thesliding rod 1343, and the first connectingpiece 1341, the second connectingpiece 1342, the first pressing part and the second pressing part form a quadrilateral structure; thesliding sleeve 1344 is sleeved outside the connectingpipe 132 and is close to one end of thehandle 133, thesliding sleeve 1344 can slide along the axial direction of the connectingpipe 132 under the condition of stress, one end of the connectingrope 1345 is connected with one end of thesliding rod 1343, which is close to thehandle 133, the other end of the connectingrope 1345 is connected with thesliding sleeve 1344, thereturn spring 1346 is sleeved on thesliding rod 1343, one end of thereturn spring 1346 is connected with thesliding rod 1343, and the other end of thereturn spring 1346 is connected with the inner wall of the connectingpipe 132.

Ahandle 1347 is disposed on thesliding sleeve 1344, thehandle 1347 is located at an end of thesliding sleeve 1344 close to thehandle 133, and thehandle 1347 is disposed to facilitate moving thesliding sleeve 1344.

The outer side wall of the connectingpipe 132 is further provided with a limitingportion 1348, and the limitingportion 1348 is located on one side of thesliding sleeve 1344 away from thehandle 133, so that thesliding sleeve 1344 can be prevented from sliding out from the front end of the connectingpipe 132.

When the sewing needle clamping device is used, thehandle 133 is held, then the needle handle of thesewing needle 11 is clamped into the clamping area of theclamping head 131, the finger holding thehandle 133 hooks thehandle 1347 on thesliding sleeve 1344, thesliding sleeve 1344 is forcibly slid towards one end of thehandle 133, thesliding sleeve 1344 slides to drive thesliding rod 1343 to slide towards one end of thehandle 133 through the connectingrope 1345, and the first connectingpiece 1341 and the second connectingpiece 1342 respectively apply inward pressure to the first pressing part and the second pressing part, so that the first clamping part and the second clamping part clamp thesewing needle 11. When thesliding sleeve 1344 is released, thesliding rod 1343 moves towards the end away from thehandle 133 under the action of thereturn spring 1346, and the first connectingpiece 1341 and the second connectingpiece 1342 respectively apply an outward tension to the first pressing portion and the second pressing portion, so that the first clamping portion and the second clamping portion release theneedle 11.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims (8)

1. An endoscopic surgical suturing device, comprising: including sewing needle, stylolite and needle holder, the sewing needle includes pinpoint portion and needle handle portion, pinpoint portion set up in the front end of needle handle portion, keeping away from of pinpoint portion the one end of needle handle portion is triangular pyramid, the cross sectional shape of needle handle portion is regular polygon, the one end of stylolite with the rear end of needle handle portion is connected, the needle holder is used for the centre gripping the sewing needle is sewed up.

2. The endoscopic surgical suturing device according to claim 1, wherein: the needle holder comprises a chuck, a connecting pipe, a handle and a control mechanism, wherein the chuck is arranged at one end of the connecting pipe, the handle is arranged at the other end of the connecting pipe, the control mechanism is arranged on the connecting pipe, and the control mechanism is connected with the chuck and is used for controlling the chuck to be opened or clamped.

3. The endoscopic surgical suturing device according to claim 2, wherein: the chuck includes first clamping piece and second clamping piece, the middle part of first clamping piece with the middle part of second clamping piece support through the pivot in the one end of connecting pipe, first clamping piece with the second clamping piece forms cuts the fork structure, first clamping piece includes first clamping part and first splenium of pressing, the second clamping piece includes second clamping part and second and presses the splenium, first clamping part with form the clamping area between the second clamping part, control mechanism respectively with first splenium of pressing with the second is pressed the splenium and is connected.

4. The endoscopic surgical suturing device according to claim 3, wherein: the control mechanism comprises a first connecting piece, a second connecting piece, a sliding rod, a sliding sleeve, a connecting rope and a return spring, the slide rod is arranged in the connecting pipe and is in sliding fit with the connecting pipe, one end of the first connecting sheet is connected with one end of the first pressing part, one end of the second connecting sheet is connected with one end of the second pressing part, one end of the first connecting sheet far away from the first pressing part and one end of the second connecting sheet far away from the second pressing part are both hinged with the front end of the slide rod, the sliding sleeve is sleeved at the outer side of the connecting pipe and is close to one end of the handle, one end of the connecting rope is connected with the rear end of the sliding rod, the other end of the connecting rope is connected with the sliding sleeve, the return spring is sleeved on the sliding rod, one end of the return spring is connected with the sliding rod, and the other end of the return spring is connected with the inner wall of the connecting pipe.

5. The endoscopic surgical suturing device according to claim 4, wherein: the sliding sleeve is provided with a handle.

6. The endoscopic surgical suturing device according to claim 4, wherein: the outer side wall of the connecting pipe is further provided with a limiting part, and the limiting part is located on one side, far away from the handle, of the sliding sleeve.

7. The endoscopic surgical suturing device according to claim 1, wherein: the suture line is a fishbone line.

8. The endoscopic surgical suturing device according to claim 1, wherein: the cross section of the needle handle is in a shape of a regular quadrangle or a regular hexagon.

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