Stitch removing tool for corneal transplantation suture

Abstract

The utility model belongs to the technical field of corneal transplantation, and discloses a suture removing tool for corneal transplantation suture, which comprises a handle, a suture cutter and a suture leading hook, the suture cutter is of an arc-shaped structure, one end of the suture cutter is connected with one end of the handle, one end of the suture cutter far away from the handle is provided with a first tip, and the length of the first tip is 1 / 2 of the thickness of a corneal graft; the thread guiding hook is of an arc-shaped structure and is a smooth cylinder, one end of the thread guiding hook is connected with the end, away from the thread cutter, of the handle, and a second tip is arranged at the end, away from the handle, of the thread guiding hook. Compared with a common needle head, the suture removing tool for the cornea transplantation suture has the advantages that damage to the cornea is smaller, safety is higher, the cornea suture is not prone to being cut off, the cornea suture can be completely removed from one side of a cornea transplantation bed, and in addition, a one-handle double-head structure formed by the handle, the suture cutter and the suture leading hook provides convenience for actual operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to corneal transplantation technical field especially relates to a kind of for corneal transplantation suture thread's thread removal tool. BACKGROUND

[0002] Corneal suture removal both want to remove corneal suture as much as possible, and want to avoid excessive damage cornea as much as possible.Corneal suture removal after corneal transplantation mainly uses 1ml needle to break off corneal suture from corneal graft side in current clinical practice, then 1ml needle is used to pick out from corneal bed side, and then corneal suture is removed using fiber tooth forceps.

[0003] This operation is feasible, but has certain defects, mainly as follows: one, when breaking off corneal suture at corneal graft, 1ml needle needs to be stretched to corneal suture below in corneal graft, so there is certain requirement for operation, and because the depth of needle insertion into corneal graft is difficult to control, there is the risk of needle penetrating into anterior chamber.Two, when picking out corneal suture at corneal bed, because corneal suture has certain resistance in corneal graft, plus the edge like blade on both sides of needle, corneal suture is easily cut off, so it cannot be smoothly led out. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of for corneal transplantation suture thread's thread removal tool to solve the problems raised in the above background technology.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A kind of for corneal transplantation suture thread's thread removal tool, comprising:

[0007] Handle;

[0008] Wire cutting knife, the wire cutting knife is arc structure, one end of the wire cutting knife is connected with one end of the handle, the first tip is provided at the end of the wire cutting knife away from the handle, and the length of the first tip is 1 / 2 corneal graft thickness;

[0009] Lead wire hook, the lead wire hook is arc structure, and the lead wire hook is smooth cylinder, one end of the lead wire hook is connected with the end of the handle away from the wire cutting knife, and the second tip is provided at the end of the lead wire hook away from the handle.

[0010] Optionally, the first tip is provided with cutting edge, and the cutting edge is located at the side of the first tip close to the handle.

[0011] Optionally, one end of the handle is provided with a first connecting end, and one end of the incision line cutter away from the first pointed end is provided with a first connecting seat, which is detachably connected with the first connecting end.

[0012] Optionally, the first connecting end is provided with a first threaded stud, and the first connecting seat is provided with a first threaded hole matched with the first threaded stud.

[0013] Optionally, one end of the handle away from the incision line cutter is provided with a second connecting end, and one end of the lead line hook away from the second pointed end is provided with a second connecting seat, which is detachably connected with the second connecting end.

[0014] Optionally, the second connecting end is provided with a second threaded stud, and the second connecting seat is provided with a second threaded hole matched with the second threaded stud.

[0015] Optionally, the handle is provided with anti-skid patterns.

[0016] The utility model discloses beneficial effect:

[0017] The utility model provides a line removal tool for corneal graft suture, when the corneal suture is broken at the corneal graft, the first pointed end of incision line cutter is stretched to the corneal suture below the corneal graft in the hand handle, because the length of first pointed end is 1 / 2 corneal graft's thickness, can avoid first pointed end to penetrate the corneal graft and enter the anterior chamber in the process that first pointed end cuts the corneal suture, reduce the risk of penetrating the anterior chamber, when the corneal suture is picked up at the corneal bed, the second pointed end of lead line hook is passed below the corneal suture in the corneal bed in the hand handle, and the corneal suture is picked up by the lead line hook by pulling the handle, because lead line hook is the smooth cylinder, only second pointed end is sharp structure, can avoid the corneal suture cutting off in the process that lead line hook picks up the corneal suture, makes the corneal suture be smoothly led out. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment of the utility model, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can be obtained according to the content of the embodiment of the utility model and these drawings.

[0019] Figure 1is a structure schematic view of the suture removal tool for corneal transplantation suture provided by the utility model;

[0020] Figure 2 is a structure schematic view of the handle in the utility model;

[0021] Figure 3 is a structure schematic view of the wire cutting knife in the utility model;

[0022] Figure 4 is a structure schematic view of the wire leading hook in the utility model;

[0023] Figure 5 is a structure schematic view of the corneal graft in the utility model.

[0024] In the drawing,

[0025] 10, corneal graft; 20, corneal bed; 30, corneal suture;

[0026] 100, handle; 110, first connecting end; 111, first stud; 120, second connecting end; 121, second stud; 130, anti-skid pattern; 200, wire cutting knife; 210, first tip; 220, cutting edge; 230, first connecting seat; 231, first screw hole; 300, wire leading hook; 310, second tip; 320, second connecting seat; 321, second screw hole. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0028] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through the intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that first feature horizontal height is higher than second feature. First feature "under", "below" and "under surface of" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that first feature horizontal height is less than second feature.

[0030] In the description of the embodiment, the orientation or position relationship of the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0031] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as a limitation on the utility model.

[0032] As Figures 1 to 5 The utility model provides a kind of suture removal tool for corneal transplantation, including handle 100, cutting wire sword 200 and lead wire hook 300. Among them, cutting wire sword 200 is arc structure, and one end of cutting wire sword 200 is connected with one end of handle 100, and the end of cutting wire sword 200 away from handle 100 is provided with first tip 210, and the length of first tip 210 is 1 / 2 corneal graft 10 thickness;Lead wire hook 300 is arc structure, and lead wire hook 300 is smooth cylinder, and one end of lead wire hook 300 is connected with the end of handle 100 away from cutting wire sword 200, and the end of lead wire hook 300 away from handle 100 is provided with second tip 310.

[0033] The line removal tool for corneal transplant suture provided by the utility model can avoid the first pointed end 210 from penetrating the corneal graft 10 to enter the anterior chamber in the process of the first pointed end 210 cutting the corneal suture 30, and can reduce the risk of penetrating the anterior chamber. When the corneal suture 30 is pulled out at the corneal implant bed 20, the hand-held handle 100 makes the second pointed end 310 of the lead hook 300 pass below the corneal suture 30 in the corneal implant bed 20, and the lead hook 300 pulls out the corneal suture 30 by the pulling handle 100. Since the lead hook 300 is a smooth cylinder, only the second pointed end 310 is a sharp structure, and the process of the lead hook 300 pulling out the corneal suture 30 can avoid the situation that the corneal suture 30 is cut off, so that the corneal suture 30 can be smoothly pulled out.

[0034] In some embodiments, the first pointed end 210 is provided with a cutting edge 220, and the cutting edge 220 is located on the side of the first pointed end 210 close to the handle 100. The first pointed end 210 cuts the corneal suture 30 through the cutting edge 220.

[0035] In some embodiments, one end of the handle 100 is provided with a first connecting end 110, and the end of the line cutting knife 200 away from the first pointed end 210 is provided with a first connecting seat 230. The first connecting seat 230 is detachably connected with the first connecting end 110. Through the above structure, the detachable connection of the line cutting knife 200 and the handle 100 is realized, and the line cutting knife 200 is convenient to replace. Specifically, the first connecting end 110 is provided with a first threaded stud 111, and the first connecting seat 230 is provided with a first threaded hole 231 matched with the first threaded stud 111. The first connecting end 110 and the first connecting seat 230 are detachably connected through the threaded connection of the first threaded stud 111 and the first threaded hole 231. Of course, in other embodiments, the first connecting seat 230 and the first connecting end 110 can also adopt buckles or other ways capable of realizing detachable connection.

[0036] The second connecting end 120 is arranged at an end of the handle 100 away from the tangential cutter 200, the second connecting seat 320 is arranged at an end of the lead hook 300 away from the second pointed end 310, and the second connecting seat 320 is detachably connected with the second connecting end 120. Through the above structure, the detachable connection between the lead hook 300 and the handle 100 is realized, and the tangential cutter 200 is convenient to replace. Specifically, the second connecting end 120 is provided with a second threaded stud 121, the second connecting seat 320 is provided with a second threaded hole 321 matched with the second threaded stud 121, and the detachable connection between the second connecting end 120 and the second connecting seat 320 is realized through the threaded connection between the second threaded stud 121 and the second threaded hole 321. Of course, in other embodiments, the second connecting seat 320 and the second connecting end 120 can also adopt buckles or other ways capable of realizing detachable connection.

[0037] In order to ensure the anti-skid effect when holding the handle 100, in some embodiments, the handle 100 is provided with an anti-skid pattern 130. Of course, in other embodiments, other anti-skid structures, such as an anti-skid sleeve, can also be arranged on the handle 100.

[0038] Compared with a common needle, the suture removal tool for corneal transplantation has smaller damage to the cornea, higher safety, and is not easy to cut the corneal suture 30, and is beneficial to the complete removal of the corneal suture 30 from the corneal implant bed 20 side, in addition, the handle 100, the tangential cutter 200 and the lead hook 300 form a double-head structure, which provides convenience for actual operation.

[0039] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts a mature means in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts a conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the description all belong to the prior art known to those skilled in the art.

[0040] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A suture removal tool for corneal graft sutures, characterized in that, The utility model relates to a corneal graft cutting device, which comprises: a handle; a tangential cutting knife in an arc structure, one end of the tangential cutting knife being connected to one end of the handle, a first pointed end being arranged at the end of the tangential cutting knife away from the handle, the length of the first pointed end being 1 / 2 the thickness of a corneal graft; a lead wire hook in an arc structure, the lead wire hook being a smooth cylinder, one end of the lead wire hook being connected to the end of the handle away from the tangential cutting knife, a second pointed end being arranged at the end of the lead wire hook away from the handle.

2. The suture removal tool for corneal transplant sutures according to claim 1, characterized in that, The first pointed end is provided with a cutting edge, the cutting edge being located on the side of the first pointed end close to the handle.

3. The suture removal tool for corneal transplant sutures according to claim 1, characterized in that, One end of the handle is provided with a first connecting end, the end of the tangential cutting knife away from the first pointed end is provided with a first connecting seat, and the first connecting seat is detachably connected to the first connecting end.

4. The suture removal tool for corneal transplant sutures according to claim 3, characterized in that The first connecting end is provided with a first threaded stud, and the first connecting seat is provided with a first threaded hole matched with the first threaded stud.

5. The suture removal tool for corneal transplant sutures of claim 1, wherein, The end of the handle away from the tangential cutting knife is provided with a second connecting end, the end of the lead wire hook away from the second pointed end is provided with a second connecting seat, and the second connecting seat is detachably connected to the second connecting end.

6. The suture removal tool for corneal transplant sutures according to claim 5, characterized in that The second connecting end is provided with a second threaded stud, and the second connecting seat is provided with a second threaded hole matched with the second threaded stud.

7. The suture removal tool for corneal transplant sutures of claim 1, wherein, The handle is provided with anti-slip patterns.

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