Ophthalmic lacrimal sac microscopic scissors

Abstract

The invention discloses ophthalmic lacrimal sac microscopic scissors, and belongs to the technical field of medical instruments. The ophthalmic lacrimal sac microscopic scissors comprise two scissor arms, each scissor arm comprises a blade part, a connecting part and a holding part which are sequentially connected, the blade parts, the connecting parts and the holding parts of the scissor arms are located in the same plane, the two connecting parts are jointly provided with a hinge piece so that the two scissor arms can be hinged, the blade parts are obliquely connected with the corresponding connecting parts, and the connecting parts are connected with the corresponding connecting parts. The inclination directions of the two blade parts are consistent, the inclination angle between each blade part and the corresponding connecting part is larger than or equal to 110 degrees and smaller than or equal to 130 degrees, and the connecting parts and the ends, close to the connecting parts, of the holding parts are arranged in a straight mode. According to the ophthalmic lacrimal sac micro-scissors, it can be guaranteed that an H-shaped incision is manufactured more accurately.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a pair of ophthalmic lacrimal sac microscissors. Background Art

[0002] In traditional and existing surgical procedures, the tear sac wall needs to be opened by making a vertical incision using ophthalmic surgical scissors to form an "H" shape, and then a scalpel is used to make a corresponding "H"-shaped incision on the nasal mucosa.

[0003] Since the lacrimal sac wall is relatively small, a small incision needs to be made during surgery. In addition, due to the anatomical position, the entire intraoperative operating space is small. In existing surgeries, when ophthalmic surgical scissors are used to make an "H"-shaped incision on the lacrimal sac wall, due to the large size and shape of the ophthalmic microscissors, the surgeon's operation is extremely inconvenient during surgery. The lacrimal sac wall cannot be cut vertically, and can only be cut obliquely, resulting in an oblique lacrimal sac flap that cannot be truly "H"-shaped. As a result, the lacrimal sac incision flap and the nasal mucosal flap cannot be sutured horizontally during surgery. The surgical procedure is not standardized, resulting in a narrow drainage tract during surgery, hyperplasia of granulation tissue, and the possibility of drainage cavity obstruction. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide an ophthalmic lacrimal cyst microscissors capable of ensuring more accurate production of an "H"-shaped incision.

[0005] The ophthalmic lacrimal sac microscissors provided by the present invention include two scissor arms, each of which includes a blade, a connecting portion and a gripping portion connected in sequence, the blade, connecting portion and gripping portion of each scissor arm are all located in the same plane, and a hinge is commonly provided on the two connecting portions to enable the two scissor arms to be hinged, the blade is obliquely connected to the corresponding connecting portion, and the inclination directions of the two blades are consistent, the inclination angle between the blade and the corresponding connecting portion is greater than or equal to 110° and less than or equal to 130°, and the connecting portion and one end of the gripping portion close to the connecting portion are arranged straight, so that the blade obliquely connected to the connecting portion is convenient for extending into the surgical area as a functional area for surgery, thereby avoiding the scissor arm being unable to make a vertical incision on the lacrimal sac wall due to obstruction of other parts of the patient's face, and at the same time, it is convenient for the operator to apply stable force to the gripping portion without blocking the operator's field of view.

[0006] Preferably, the length of the blade is 6mm to 8mm, which can better meet the length of the tear sac wall incision during surgery, avoiding the problem that the blade is too short and cannot be completely cut in one time, requiring a second cut, resulting in an uneven incision, and the blade is too long to reduce the surgical operating space, which is not conducive to the surgical operation.

[0007] Preferably, the inclination angles between the two blades and the corresponding connecting parts are consistent, so that the two blades can overlap better.

[0008] Preferably, the two blades are staggered so that they can overlap, thereby further reducing the space occupied by the blade functional area.

[0009] Preferably, the width of the blade gradually decreases from one end close to the connection portion to the end far from the connection portion, so that the smaller end enters the surgical area first and can be gradually cut without damaging the lacrimal sac wall, and gradually becomes larger from the tip to the tail, so that the blade is more powerful when cutting, the blade is not deformed, and the lacrimal sac valve incision can be sharp with less bleeding.

[0010] Preferably, the two gripping parts are both made of elastic material, are bent, and the ends of the two gripping parts away from the connecting part are close to each other, so that repeated shearing operations are more labor-saving and stable.

[0011] Preferably, one end of one of the gripping parts away from the connecting part is provided with a limiting through hole, and the other end of the gripping part away from the connecting part passes through the limiting through hole and is slidably connected to the limiting through hole. In this way, the two gripping parts can be prevented from slipping relative to each other when squeezed.

[0012] Preferably, a limiting block is provided on one side of the middle of at least one gripping portion close to the other gripping portion, so as to avoid excessive force causing the distance between the two gripping portions to be too small, causing the gripping portions to deform too much and be unable to recover.

[0013] Preferably, the sides of the gripping parts that are away from each other are provided with an anti-slip structure, so as to prevent the gripping parts from slipping when the operator pinches the gripping parts with force.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The ophthalmic lacrimal sac microscissors of the present invention are provided with two scissor arms each including a blade, a connecting portion and a gripping portion connected in sequence, and the blade and the connecting portion are arranged to be inclined, and the inclination direction between the two blades and the connecting portion is consistent, so that when the lacrimal sac wall is incised, the blade can be conveniently extended into the surgical area as a functional area to perform surgery, the blade, the connecting portion and the gripping portion of each scissor arm are all located in the same plane, and the connecting portion and the end of the gripping portion close to the connecting portion are arranged straight, so that the operator can apply stable force to the gripping portion, and after entering the lacrimal sac, the blade can be perpendicular to the lacrimal sac wall to achieve a vertical incision, thereby ensuring that the "H"-shaped incision is made more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a partial enlarged structural schematic diagram A of the present invention;

[0018] Figure 3 It is a partial enlarged structural schematic diagram B of the present invention.

[0019] Description of reference numerals:

[0020] 1. Blade; 2. Connecting part; 3. Grip; 31. Limiting through hole; 32. Limiting block; 33. Anti-slip structure. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 to Figure 3 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the existing surgery, since the lacrimal sac wall is relatively small, the incision that needs to be made is also relatively small, resulting in too small operating space during the surgery. Therefore, the inventors thought of reducing the functional area of ​​the microscissors that enter the surgical area and is used to shear the lacrimal gland wall, so that only the functional area of ​​the microscissors enters the surgical area, and the functional area of ​​the microscissors has sufficient operating and activity space in the surgical area. In this way, it is helpful to adjust the position of the functional area of ​​the microscissors in the surgical area of ​​the lacrimal sac wall, thereby achieving a precise vertical incision. At the same time, other areas of the microscissors are convenient for the surgeon to use and exert force, thereby ensuring the stability of the surgery. For this reason, the inventors of the present application proposed the ophthalmic lacrimal sac microscissors of the present invention.

[0023] The ophthalmic lacrimal cyst microscissors provided by the present invention include two scissor arms, each of which includes a blade 1, a connecting portion 2 and a gripping portion 3 connected in sequence, the blade 1, the connecting portion 2 and the gripping portion 3 of each scissor arm are all located in the same plane, and a hinge is commonly provided on the two connecting portions 2 to enable the two scissor arms to be hinged, the blade 1 is obliquely connected to the corresponding connecting portion 2, and the inclination directions of the two blades 1 are consistent, and the inclination angle between the blade 1 and the corresponding connecting portion 2 is greater than or equal to 110° and less than or equal to 130°. Specifically, the inclination angle can be 110°, 120°, 130°, etc., and the connecting portion 2 and the gripping portion 3 are arranged straight between one end close to the connecting portion 2;

[0024] The above scheme can be adopted to conform to the anatomical structure of the lacrimal sac area when incising the lacrimal sac wall, so that the blade 1 obliquely connected to the connecting part 2 can be extended into the surgical area as a functional area for surgery, thereby avoiding the scissor arm being unable to make a vertical incision on the lacrimal sac wall due to obstruction of other parts of the patient's face. The blade 1, connecting part 2 and gripping part 3 of each scissor arm are all located in the same plane, and the connecting part 2 and the gripping part 3 are arranged straightly between the end of the connecting part 2 close to the connecting part 2, so that the surgeon can apply stable force to the gripping part 3 without blocking the surgeon's field of vision, thereby ensuring that the "H"-shaped incision is made more accurately, and the size of the valve is made more in line with the surgical requirements, thereby ensuring that the lacrimal sac valve and the upper and lower flaps of the nasal mucosal flap are accurately aligned and fully anastomosed. The anastomosed flap can avoid dislocation or accumulation of incision flap tissue, ensuring that the front flap can be better suspended and fixed in the subcutaneous tissue after anastomosis, the intraoperative operation is simple, the drainage channel is larger and more unobstructed after the operation, the lacrimal sac opening heals better, and the complications of drainage opening obstruction or healing stenosis are reduced.

[0025] As a preferred method, the length of the blade 1 from the bending position to the end away from the connecting portion 2 is 6mm to 8mm. Optimally, the length of the blade 1 from the bending position to the end away from the connecting portion 2 is 8mm. A length of 8mm is generally more in line with the length of the tear sac wall for surgical incision. If it is too short, it cannot be completely incised in one time and a second incision is required, resulting in an uneven incision. If it is too long, the surgical operating space will be reduced, which is not conducive to surgical operation. Since the length of the tear sac wall that needs to be cut may be different for each person, in order to facilitate the surgical operation, in a preferred embodiment, a length of less than or equal to 8mm is selected.

[0026] As a preferred manner, the inclination angles between the blade 1 and the corresponding connecting portion 2 are consistent. By adopting the above technical solution, during the operation, the two blades 1 can be better overlapped, thereby further reducing the space occupied by the functional area of ​​the blade 1 and increasing the operating space.

[0027] As a preferred method, the two blades 1 are staggered so that they can overlap. The above technical solution can further reduce the space occupied by the functional area of ​​the blade 1 and increase the operating space, which is conducive to the surgeon to perform the operation better and ensure the accuracy of the "H"-shaped incision.

[0028] As a preferred manner, the width of the blade 1 gradually decreases from the end close to the connecting portion 2 to the end away from the connecting portion 2. The sharp blade 1 is more conducive to entering the surgical area for operation. If it is too large, it is not convenient to enter before the lacrimal sac wall is cut open, and forced entry may cause damage to the lacrimal sac wall. Therefore, the above-mentioned technical solution is adopted, and the smaller end enters first, which can gradually cut open without damaging the lacrimal sac wall, and gradually becomes larger from the tip to the tail, so that the blade 1 is more powerful when cutting, the blade 1 is not deformed, and the lacrimal sac valve incision can be sharp with less bleeding.

[0029] As a preferred embodiment, the two gripping parts 3 are both made of elastic material, and the two gripping parts 3 are both bent. Specifically, the gripping parts 3 can be metal sheets with elasticity and curvature, and the two gripping parts 3 are close to each other at one end away from the connecting part 2. With the above technical solution, since the gripping parts 3 are both made of elastic material, after the operator completes the shearing operation, the pressure on the gripping parts 3 is released, and the gripping parts 3 can rebound by themselves, so that the two blades 1 are opened, which is more labor-saving and stable when repeated operations are performed.

[0030] As a preferred embodiment, a limiting through hole 31 is provided at one end of a gripping portion 3 away from the connecting portion 2, and another end of a gripping portion 3 away from the connecting portion 2 passes through the limiting through hole 31 and is slidably connected to the limiting through hole 31. The above technical solution can prevent the two gripping portions 3 from slipping relative to each other when squeezed, resulting in the gripping portions 3 falling out of the hands and causing injury to the patient or operator.

[0031] As a preferred manner, a limiting block 32 is provided on one side of the middle of at least one gripping portion 3 close to the other gripping portion 3. Specifically, the limiting block 32 may be cylindrical, rectangular, etc. By adopting the above technical solution, when the gripping portions 3 are pinched together with force, the limiting block 32 can be blocked between the two gripping portions 3 to limit the minimum distance between the middle portions of the two gripping portions 3, thereby avoiding excessive force that causes the distance between the two gripping portions 3 to be too small, causing the gripping portions 3 to be deformed too much and unable to recover.

[0032] As a preferred embodiment, an anti-slip structure 33 is provided on the side of the gripping portion 3 that is away from each other. Specifically, the anti-slip structure 33 can be wavy in shape and is provided on the side of the gripping portion 3 that is away from each other. The above technical solution can be used to prevent the operator from slipping and losing the grip when pinching the gripping portion 3 with force, thereby preventing the patient or the operator from being injured.

[0033] In the description of the present invention, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ophthalmic lacrimal cyst microscissors, characterized in that: The invention comprises two scissor arms, each of which comprises a blade (1), a connecting portion (2) and a gripping portion (3) connected in sequence, the blade (1), the connecting portion (2) and the gripping portion (3) of each scissor arm are all located in the same plane, the two connecting portions (2) are provided with a hinged member so that the two scissor arms are hinged, the blade (1) is connected to the corresponding connecting portion (2) in an inclined manner, and the inclination directions of the two blades (1) are consistent, the inclination angle between the blade (1) and the corresponding connecting portion (2) is greater than or equal to 110° and less than or equal to 130°, and the connecting portion (2) and the gripping portion (3) are arranged straight between one end of the connecting portion (2) and the gripping portion (3).

2. The ophthalmic lacrimal cyst microscissors according to claim 1, characterized in that: The length of the blade (1) is 6 mm to 8 mm.

3. The ophthalmic lacrimal cyst microscissors according to claim 1, characterized in that: The inclination angles between the two blade portions (1) and the corresponding connecting portions (2) are consistent.

4. The ophthalmic lacrimal cyst microscissors according to claim 3, characterized in that: The two blades (1) are arranged in an offset manner so that the two blades (1) can overlap.

5. The ophthalmic lacrimal cyst microscissors according to claim 1, characterized in that: The width of the blade portion (1) gradually decreases from an end close to the connecting portion (2) to an end far from the connecting portion (2).

6. The ophthalmic lacrimal cyst microscissors according to claim 1, characterized in that: The two gripping portions (3) are both made of elastic material, the two gripping portions (3) are both bent, and the ends of the two gripping portions (3) away from the connecting portion (2) are close to each other.

7. The ophthalmic lacrimal cyst microscissors according to claim 6, characterized in that: One end of one of the gripping portions (3) away from the connecting portion (2) is provided with a limiting through hole (31), and another end of the other gripping portion (3) away from the connecting portion (2) passes through the limiting through hole (31) and is slidably connected to the limiting through hole (31).

8. The ophthalmic lacrimal cyst microscissors according to claim 1, characterized in that: A limiting block (32) is provided on one side of the middle portion of at least one gripping portion (3) close to another gripping portion (3).

9. The ophthalmic lacrimal cyst microscissors according to claim 1, characterized in that: An anti-slip structure (33) is provided on one side of the gripping portion (3) that is away from each other.

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