L-shaped tweezers

Abstract

The utility model discloses a pair of L-shaped tweezers. The pair of L-shaped tweezers comprises an L-shaped tweezers body, a switch, a clamping part and a flexible transmission piece, the tweezers body is of a hollow structure with a cavity inside, the cavity extends to the end face of the lower portion of the tweezers body from the upper portion of the tweezers body, and a vertical opening is formed in the middle of the end face. The switch and the tweezers body are in vertical sliding connection. The clamping part is of a V-shaped structure with elastic deformation capacity, the clamping part is arranged in the opening, and the left side and the right side of the clamping part are in sliding connection with the end faces respectively; the flexible transmission piece is arranged in the cavity of the tweezers body and is in sliding connection with the cavity, and the upper end and the lower end of the flexible transmission piece are fixedly connected with the switch and the clamping part respectively; in the working process, the switch slides upwards, the clamping part slides towards the interior of the cavity, and the V-shaped structure of the clamping part is closed to be used for clamping an object. According to the utility model, the opening, closing and stretching of the clamping part are not blocked by the penetrated tissue, the wound is not expanded, and the tissue or equipment is transferred to the opposite side along with the withdrawal of the tweezers, so that the penetration and delivery actions are completed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an L-shaped forceps. Background Technology

[0002] In ophthalmic surgery, procedures involving traversing or transferring tissues refer to the introduction of surgical instruments or materials into the eye through specific structures (such as the cornea and sclera) to achieve therapeutic goals. These procedures demand extremely high precision and safety because the eye is a very sensitive and complex organ; even the slightest error can lead to irreversible damage.

[0003] Chinese Patent Publication No. CN217310481U discloses a multifunctional medical forceps, including a first forceps body and a second forceps body, with their tails fixedly connected. The outer wall of the front end of the first forceps body is provided with a scale for measuring wound length, and a blade is rotatably connected to the inner side of the first forceps body. The second forceps body includes a gripping part and a clamping part, the gripping part being connected to the first forceps body, and the clamping part being rotatably connected to the gripping part. The blade has a retracted state and a working state. When the blade is in the retracted state, it is completely located inside the first forceps body; when the blade is in the working state, the cutting edge of the blade is exposed outside the first forceps body.

[0004] However, the aforementioned forceps have a V-shaped structure, which can only be used in open spaces. When needing to pass through muscle tissue, the V-shaped structure cannot open because it is encased by muscle tissue. Opening the V-shaped structure may damage the muscle tissue and enlarge the wound. Most existing forceps require the assistance of other instruments to deliver items. Utility Model Content

[0005] To address the problem that the gripping part of V-shaped forceps is difficult to open or enlarges the wound when it is opened when passing through tissue, this invention provides an L-shaped forceps.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An L-shaped pair of tweezers, characterized in that it comprises an L-shaped tweezers body, a switch, a clamping part, and a flexible transmission component;

[0008] The tweezers body is a hollow structure with an internal cavity. The shape of the cavity is adapted to the flexible transmission component. The cavity extends from the upper part of the tweezers body to the lower end face of the tweezers body, and a vertical opening is provided in the middle of the end face.

[0009] The switch and the tweezers body are connected by sliding vertically.

[0010] The clamping part is a V-shaped structure with elastic deformation capability. The clamping part is set in the opening, and the left and right sides of the clamping part are slidably connected to the end face respectively.

[0011] The flexible transmission component is disposed in the cavity of the tweezers body and is slidably connected to the cavity. The upper and lower ends of the flexible transmission component are fixedly connected to the switch and the clamping part, respectively.

[0012] When in operation, sliding the switch upwards causes the clamping part to slide into the cavity and its V-shaped structure to close for clamping the object.

[0013] Preferably, the clamping part includes two flat duckbill-shaped clamping pieces arranged opposite each other and having elastic deformation capability. The two clamping pieces are connected at one end and separated from each other at the other end. The flexible transmission member is fixedly connected to the two clamping pieces at one end.

[0014] Preferably, the two clamping pieces are positioned far apart from each other, with one end having a streamlined pointed tip.

[0015] Preferably, the two sides with opposite tips are provided with teeth arranged in an alternating pattern.

[0016] Preferably, the clamping plate is made of stainless steel or silicone.

[0017] Preferably, the upper part of the tweezers body is a hand-held part and the lower part is a working part, and the upper part of the hand-held part is provided with a switch hole;

[0018] The switch includes a switch body, which is disposed at the switch hole and slidably connected to the outer side of the handheld part. A connecting rod is connected to the side of the switch body near the switch hole. The connecting rod passes through the switch hole and its two ends are respectively connected to the switch body and the flexible transmission component.

[0019] Preferably, the distance between the front and rear ends of the clamping part is greater than the distance between the upper and lower ends of the switch hole.

[0020] Preferably, the handheld part has a rectangular cross-section, the working part has a circular cross-section with a diameter ≤1.5mm, and the handheld part and the working part are smoothly connected.

[0021] Preferably, the flexible transmission component is a flexible transmission shaft.

[0022] The beneficial effects of this utility model are:

[0023] The L-shaped forceps have an internal cavity with a flexible drive shaft that slides through it. A switch is used to open and close the gripping part at the front of the forceps. The opening, closing and extension of the gripping part are not obstructed by the tissue being traversed, nor does it enlarge the wound. As the forceps are withdrawn, the tissue or instruments are transferred to the other side, completing the traversal and delivery action. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the tweezers body;

[0027] Figure 4 yes Figure 3 Enlarged view at point B in the middle;

[0028] Figure 5 This is a schematic diagram showing the connection relationship between the flexible drive shaft and the switch behind the concealed tweezers body of this utility model;

[0029] Figure 6 yes Figure 5 Enlarged view of point C in the middle.

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0032] An L-shaped tweezers includes an L-shaped tweezers body 1. The tweezers body 1 is a hollow structure with an internal cavity. The cavity extends from the upper part of the tweezers body 1 to the front end of the tweezers body 1. A flexible transmission component slides inside the hollow cavity of the tweezers body 1. A switch 2 is connected to the upper part of the flexible transmission component, and a clamping part 3 is connected to the lower end face of the flexible transmission component.

[0033] The tweezers body 1 has a handle 11 at the top and a working part 12 at the bottom. The handle 11 has a rectangular cross-section of 4mm*6mm and a switch hole 13 at the top. The working part 12 has a circular cross-section of 1.5mm. The handle 11 and the working part 12 are smoothly connected. A vertical opening 15 is opened in the middle of the end face 14 of the working part 12 away from the handle 11.

[0034] The clamping part 3 is disposed within the opening 15. The left and right sides of the clamping part 3 are slidably connected to the end face 14. The clamping part 3 is a V-shaped structure with elastic deformation capability, including two opposing, flat, duckbill-shaped clamping pieces 32 with elastic deformation capability. One end of the two clamping pieces 32 is connected, and the other ends are separated from each other. The separated ends of the two clamping pieces 32 are streamlined pointed tips, and teeth 31 are arranged in an alternating pattern on the opposite sides of the two pointed tips. The distance between the front and rear ends of the clamping part 3 is greater than the distance between the upper and lower ends of the switch hole 13.

[0035] In this embodiment, the two clamping pieces 32 are made of 316L stainless steel. However, this utility model is not limited to this, and the two clamping pieces 32 can also be made of silicone or other elastic materials.

[0036] The flexible transmission component includes a flexible transmission shaft 4, the upper end of which is fixedly connected to the switch, and the lower end of which is fixedly connected to one end of two clamping plates 32 that are interconnected.

[0037] Flexible transmission components are not limited to attachments Figure 5 The flexible drive shaft 4 shown can also be a flexible drive device composed of steel wire or steel wire and sleeve.

[0038] The switch 2 includes a switch body 21, which is disposed at the switch hole 13 and slidably connected to the outer side of the handheld part 11. The vertical side of the switch body 21 away from the switch hole 13 is provided with anti-slip teeth. A connecting rod 22 is connected to the side of the switch body 21 near the switch hole 13. The connecting rod 22 passes through the switch hole 13 and its two ends are respectively connected to the switch body 21 and the flexible transmission shaft 4.

[0039] The working principle of this utility model is as follows:

[0040] During the operation, when using this device, the medical staff holds the handpiece 11 and first flips the switch 2 upward. The switch 2 drives the flexible transmission shaft 4 to slide upward in the cavity of the forceps body 1, which in turn drives the clamping part 3 to slide into the cavity. Due to the obstruction of the end face 14 of the handpiece 11, the two elastic clamping pieces 32 begin to deform, and their ends that are far apart begin to move closer to each other. Then the V-shaped opening of the clamping part 3 closes until most of the clamping part 3 is retracted into the cavity of the forceps body 1. Since the distance between the front and rear ends of the clamping part 3 is greater than the distance between the upper and lower ends of the switch hole 13, the clamping part 3 will not be completely retracted into the cavity, and the tip parts of the two clamping pieces 32 are on the outside of the cavity.

[0041] Then, the medical staff holds the handpiece 11 and passes the front end of the working part 12 through the intact muscle, flips the switch 2 downward, the clamping part 3 extends out of the cavity, and under the action of elastic force, the streamlined tips of the two elastic clamping pieces 32 begin to move away from each other and form a V shape.

[0042] Next, align the V-shaped opening formed by the two elastic clamping pieces 32 with the tissue or device to be clamped, and flip the switch 2 upwards. The clamping part 3 will then close, thereby clamping the tissue or device to be clamped.

[0043] Finally, as the tweezers are withdrawn, the tissue or equipment is transferred to the other side, completing the crossing and delivery process.

[0044] The flexible drive shaft 4 is existing technology and is a device that can realize power or motion transmission in a curved path. It is irrelevant to the point of this invention and will not be described in detail here.

[0045] The above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the utility model without departing from the spirit and scope of the utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

[0046] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or 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 construed as a limitation of this utility model.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An L-shaped forceps, characterized by comprising: The utility model relates to a L-shaped tweezers body (1), switch (2), clamping part (3) and flexible transmission part are included. The tweezers body (1) is a hollow structure with a cavity inside, the cavity is adapted to the flexible transmission part, and the cavity extends from the upper part of the tweezers body (1) to the end face (14) of the lower part of the tweezers body (1); a vertical opening (15) is formed in the middle of the end face (14). The switch (2) and the tweezers body (1) are connected in a sliding manner. The clamping part (3) is a V-shaped structure with elastic deformation capability, the clamping part (3) is arranged in the opening (15), and the left and right sides of the clamping part (3) are connected to the end face (14) in a sliding manner. The flexible transmission part is arranged in the cavity of the tweezers body (1) and connected to the cavity in a sliding manner, and the upper and lower ends of the flexible transmission part are fixedly connected to the switch (2) and the clamping part (3) respectively. During operation, the switch (2) is slid upward, the clamping part (3) slides into the cavity, and the V-shaped structure thereof is closed to hold an object.

2. The L-shaped tweezers of claim 1, wherein The clamping part (3) includes two flat duckbill-shaped clamping pieces (32) arranged oppositely and having elastic deformation capability, one end of the two clamping pieces (32) is connected, and the other end is away from each other, and the flexible transmission part is fixedly connected to one end connected to the two clamping pieces (32).

3. An L-shaped tweezer according to claim 2, wherein The other end of the two clamping pieces (32) away from each other is a streamlined sharp end.

4. An L-shaped tweezer according to claim 3, wherein The opposite sides of the two sharp ends are respectively provided with front and rear staggered teeth (31).

5. An L-shaped tweezer according to claim 4, wherein The clamping piece (32) is made of stainless steel or silica gel.

6. The L-shaped tweezers of claim 1, wherein The upper part of the tweezers body (1) is a hand holding part (11), and the lower part is a working part (12); the upper part of the hand holding part (11) is provided with a switch hole (13). The switch (2) includes a switch body (21), the switch body (21) is arranged at the switch hole (13) and connected to the outer side of the hand holding part (11) in a sliding manner, the switch body (21) is connected to a connecting rod (22) near one side of the switch hole (13), the connecting rod (22) passes through the switch hole (13), and the two ends of the connecting rod (22) are respectively connected to the switch body (21) and the flexible transmission part.

7. An L-shaped tweezer according to claim 6, wherein The front and rear end distance of the clamping part (3) is greater than the upper and lower end distance of the switch hole (13).

8. An L-shaped tweezer according to claim 7, wherein The hand holding part (11) is rectangular in cross section, the working part (12) is circular in longitudinal cross section with a diameter of less than or equal to 1.5 mm, and the hand holding part (11) and the working part (12) are connected in a smooth transition manner.

9. An L-shaped tweezers according to any one of claims 1-8, characterized in that The flexible transmission part is a flexible transmission shaft (4).

Images