Medical surgical forceps

Abstract

The utility model relates to the technical field of medical instruments, in particular to medical surgical forceps to solve the problems that the conventional medical surgical forceps are difficult to be small in size and difficult to bend, a connecting shaft is easy to damage, and the operation is difficult when a complex surgery is performed. The device comprises a driving part and a clamping part, the driving part comprises a key, a sliding block, a fixed block and a movable pipe; the clamping part comprises a bendable spring and tweezers pieces; a cavity is formed in the fixed block; the sliding block is arranged in the cavity; the two keys are arranged on the two sides of the fixing block respectively. The key is provided with a protruding block, and the protruding block abuts against the sliding block. One end of the movable pipe penetrates through the sliding block and abuts against the upper part of the cavity, and the other end of the movable pipe extends out along an opening in the lower part of the cavity; the bendable spring is arranged in the movable pipe, one end of the bendable spring extends upwards to be fixedly connected with the fixing block, and the other end of the bendable spring extends downwards to be fixedly connected with the two tweezers pieces through the two poking pieces respectively. The problems are solved by introducing a driving part and a clamping part through an optimized mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a pair of medical surgical forceps. Background Art

[0002] The existing surgical forceps often adopt a link mechanism to control the clamping action of the forceps. Since the end of the transmission rod sleeve has a forceps head seat with a circular cross-section concentric with it, there are grooves on the forceps head seat, and the grooves are symmetric with the center line of the circle. The link assembly is in the grooves, and the endoscope sheath and the transmission rod sleeve are arranged side by side up and down and are tangent to each other externally. This makes it difficult to make the size of the forceps head small under the same specifications, and the connecting shaft of its link mechanism is easy to break and damage; moreover, the pushing device of the surgical forceps is basically connected by a four-bar mechanism, and the impact force will be too large during the pushing process, which is easy to cause damage to the instrument; in addition, the existing surgical forceps cannot be bent, resulting in increased operation difficulty in the face of complex surgeries. Summary of the Utility Model

[0003] The utility model provides a pair of medical surgical forceps to alleviate the problems that the size of the forceps head of conventional medical surgical forceps is difficult to make small, it is not easy to bend, the connecting shaft is easy to be damaged, and the operation is difficult in the face of complex surgeries.

[0004] In order to alleviate the above technical problems, the technical solution provided by the utility model lies in:

[0005] This scheme provides a pair of medical surgical forceps, including a driving part and a clamping part;

[0006] The driving part includes a key, a sliding block, a fixed block and a movable tube;

[0007] The clamping part includes a bendable spring and forceps blades;

[0008] A cavity is arranged inside the fixed block;

[0009] The sliding block is arranged inside the cavity;

[0010] Two keys are respectively arranged on both sides of the fixed block;

[0011] The key is provided with a convex block, and the convex block abuts against the sliding block;

[0012] The movable tube is inserted into the sliding block, one end penetrates through the sliding block and abuts against the upper part of the cavity, and the other end extends out along the opening at the lower part of the cavity;

[0013] The bendable spring is arranged inside the movable tube, one end extends upward and is fixedly connected with the fixed block, and the other end extends downward and is respectively fixedly connected with two forceps blades through two dial pieces.

[0014] Furthermore,

[0015] The two dial pieces are arranged in parallel and have an outwardly convex arc-shaped bend in the middle.

[0016] Furthermore,

[0017] it further includes a plug;

[0018] The plug is sleeved on the movable tube and is detachably connected to the opening.

[0019] Furthermore,

[0020] A return spring is arranged between the plug and the sliding block.

[0021] Furthermore,

[0022] The return spring is a compression spring and always has the ability to drive the sliding block to move away from the forceps piece.

[0023] Furthermore,

[0024] The key is rotatably connected to the fixed block.

[0025] Furthermore,

[0026] The edge of the sliding block has a boss;

[0027] One end of the bump away from the key has a latch block that cooperates with the boss;

[0028] When the key moves away from the sliding block to the maximum stroke, the latch block abuts against the boss.

[0029] Furthermore,

[0030] The driving part has a first action and a second action;

[0031] In the first action, the key applies pressure to the fixed block, causing the bump to push the sliding block towards the forceps piece, thereby driving the sliding block to move towards the forceps piece and squeezing the two paddles, so that the two paddles move closer to drive the two forceps pieces to close;

[0032] In the second action, the key stops applying pressure to the fixed block, and then the return spring resets and drives the sliding block to move away from the forceps piece, thereby driving the sliding block to move away from the forceps piece and away from the paddle, so that the paddle resets to separate the two forceps pieces.

[0033] The beneficial effects of the present utility model are analyzed as follows:

[0034] When using this device, after pressing the keys on both sides, the bump pushes the sliding block to move downward, driving the movable tube to move downward, so that the lower end opening of the movable tube squeezes the paddle, causing the forceps pieces to close.

[0035] This device does not require the use of complex linkage mechanisms, which greatly reduces the size of the tweezer head and also avoids the problem of breakage and damage of the connecting shaft at the tweezer head due to its too small size. In addition, a bendable spring is introduced into the movable tube, enabling the tweezer head to bend within a certain range for the convenience of doctors' operation. Brief Description of the Drawings

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a schematic structural diagram of a medical surgical tweezer;

[0038] Figure 2 It is a schematic cross-sectional view of a medical surgical tweezer;

[0039] Figure 3 It is Figure 2 a partial enlarged schematic view of A in

[0040] Figure 4 It is Figure 1 a partial enlarged schematic view of B in

[0041] Icon:

[0042] 100 - Driving part; 110 - Button; 111 - Protrusion; 120 - Sliding block; 130 - Fixed block; 131 - Cavity; 140 - Movable tube; 150 - Plug; 160 - Return spring;

[0043] 200 - Clamping part; 210 - Bendable spring; 220 - Tweezer blade; 230 - Pusher. Detailed Embodiments

[0044] Due to the existing surgical tweezers having problems such as the difficulty in making the tweezer head small, being not easy to bend, the connecting shaft being prone to damage, and the operation being difficult in the face of complex surgeries.

[0045] In view of this, as Figures 1 to 4 shown, this solution provides a medical surgical tweezer, including a driving part 100 and a clamping part 200;

[0046] The driving part 100 includes a button 110, a sliding block 120, a fixed block 130, and a movable tube 140;

[0047] The clamping part 200 includes a bendable spring 210 and tweezer blades 220;

[0048] There is a cavity 131 inside the fixed block 130;

[0049] The sliding block 120 is arranged inside the cavity 131;

[0050] The two keys 110 are respectively arranged on both sides of the fixed block 130;

[0051] The key 110 is provided with a convex block 111, and the convex block 111 abuts against the sliding block 120;

[0052] The movable tube 140 is inserted into the sliding block 120, one end penetrates through the sliding block 120 and abuts against the upper part of the cavity 131, and the other end extends out along the opening at the lower part of the cavity 131;

[0053] The bendable spring 210 is arranged inside the movable tube 140, one end extends upward and is fixedly connected to the fixed block 130, and the other end extends downward and is respectively fixedly connected to the two tweezer pieces 220 through two dial pieces 230.

[0054] When using this device, after pressing the keys on both sides, the convex block 111 pushes the sliding block 120 to move downward, driving the movable tube 140 to move downward, so that the lower end opening of the movable tube 140 presses the dial piece 230, causing the tweezer pieces 220 to close.

[0055] This device does not require a complex link mechanism, which greatly reduces the size of the tweezer head and also avoids the problem of breakage and damage of the connecting shaft at the tweezer head due to its too small size. In addition, a bendable spring 210 is introduced into the movable tube 140, enabling the tweezer head to bend within a certain range for the convenience of doctors' operation.

[0056] Regarding the shape and structure of the sliding block 120, as Figure 3 shown:

[0057] The sliding block 120 is arranged inside the cavity 131, and its external shape is set according to the shape of the cavity 131. It can be cylindrical or other shapes, and there is no limit here. In addition, there can be various connection methods between the sliding block 120 and the convex block 111. The outer wall of the sliding block 120 is provided with an inclined groove to guide the moving direction of the convex block 111. When the convex block 111 moves towards the sliding block 120, the corresponding latch on the convex block 111 presses this inclined groove, thereby pushing the sliding block 120 to move downward; this inclined groove can also be arranged on the convex block 111, and the corresponding latch cooperating with the inclined groove is arranged on the sliding block 120; of course, other conventional mechanical structures can also be used to achieve the above driving method.

[0058] More preferably, since the size of the paddle 230 is too small, in order to increase the clamping force when the forceps 220 are closed and avoid the problem that the paddle 230 cannot be squeezed by the movable tube 140, the two paddles 230 are arranged in parallel and have an outwardly convex arc-shaped bend in the middle. The size of the arc-shaped bend is larger than the inner diameter of the movable tube 140, so that when the movable tube 140 moves to the arc-shaped bend, it will be squeezed inward, causing the forceps 220 to close. And arranging the paddles 230 in a parallel manner can improve the utilization rate of space, and multiple sets of forceps heads can be set according to the needs of the device, such as Figure 4 As shown, two sets of forceps 220 are provided at the front end of the bendable spring 210( Figure 4 Only the corresponding component names are shown. Due to the perspective of the drawing, the arc-shaped bend being larger than the movable tube 140 and the paddles 230 being arranged in parallel are not fully shown, but this drawing does not affect the actual application effect).

[0059] Regarding the shape and structure of the driving part, as Figure 3 shown:[[]]

[0060] It further includes a plug 150;

[0061] The plug 150 is sleeved on the movable tube 140 and is detachably connected to the opening;

[0062] A return spring 160 is arranged between the plug 150 and the sliding block 120;

[0063] The return spring 160 is a compression spring and always has the ability to drive the sliding block 120 to move away from the forceps 220;

[0064] The key 110 is rotatably connected to the fixed block 130;

[0065] The edge of the sliding block 120 has a boss;

[0066] One end of the protrusion 111 away from the key 110 has a latch that cooperates with the boss;

[0067] When the key 110 moves to the maximum stroke away from the sliding block 120, the latch abuts against the boss.

[0068] Specifically, one end of the key 110 connected to the fixed block 130 away from the protrusion 111 enables the protrusion 111 to move along the axis of the connection between the key 110 and the fixed block 130.

[0069] The driving part 100 has a first action and a second action;

[0070] Under the first action, the key 110 applies pressure towards the fixed block 130, causing the bump 111 to push the slider 120 towards the forceps piece 220, thereby pushing the slider 120 to move towards the forceps piece 220 and squeezing the two paddles 230, causing the two paddles 230 to move closer to drive the two forceps pieces 220 to close;

[0071] Under the second action, the key 110 stops applying pressure towards the fixed block 130. Furthermore, the return spring 160 pushes the key 110 to reset, and drives the slider 120 to move away from the forceps piece 220, thereby driving the slider 120 to move away from the forceps piece 220 and away from the paddle 230, causing the paddle 230 to reset and separate the two forceps pieces 220.

[0072] This solution has at least the following beneficial effects:

[0073] The medical surgical forceps designed in this patent simplifies the mechanism, adopts the design of driving with the key 110 and the bendable spring 210, and solves the problems of large size of the existing forceps head, difficult to bend, easy damage of the connecting shaft, and difficult complex surgical operations. At the same time, the bendable spring 210 gives it a certain degree of bending flexibility. The cooperation of the slider 120 and the bump 111 realizes a light operation, and the structure of the paddle 230 ensures good clamping force and space utilization rate, and supports the setting of multiple groups of forceps heads.

[0074] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medical surgical tweezers, characterized in that: It comprises a driving part (100) and a clamping part (200); The driving unit (100) comprises a button (110), a sliding block (120), a fixed block (130) and a movable tube (140); The clamping portion (200) comprises a bendable spring (210) and a tweezer (220); The fixing block (130) is provided with a cavity (131) inside; The sliding block (120) is disposed in the cavity (131); The two buttons (110) are respectively arranged on two sides of the fixing block (130); The button (110) is provided with a protrusion (111), and the protrusion (111) abuts against the sliding block (120); The movable tube (140) is plugged into the sliding block (120), one end of which passes through the sliding block (120) and abuts against the upper part of the cavity (131), and the other end of which extends out along the opening at the lower part of the cavity (131); The bendable spring (210) is arranged in the movable tube (140), one end of which extends upwards to be fixedly connected to the fixed block (130), and the other end of which extends downwards to be fixedly connected to the two tweezers (220) through two plectrums (230).

2. The medical surgical forceps according to claim 1, characterized in that: The two paddles (230) are arranged in parallel, and have an outwardly convex arc bend in the middle.

3. The medical surgical forceps according to claim 2, characterized in that: Also includes a screw plug (150); The screw plug (150) is sleeved with the movable tube (140) and is detachably connected to the opening.

4. The medical surgical forceps according to claim 3, characterized in that: A return spring (160) is provided between the screw plug (150) and the sliding block (120).

5. The medical surgical forceps according to claim 4, characterized in that: The return spring (160) is a compression spring, and is always capable of driving the sliding block (120) to move in a direction away from the tweezers (220).

6. The medical surgical forceps according to claim 5, characterized in that: The button (110) is rotationally connected to the fixing block (130).

7. The medical surgical forceps according to claim 6, characterized in that: The sliding block (120) has a boss on its edge; One end of the protrusion (111) away from the button (110) has a clamping block that matches the protrusion; When the button (110) moves in a direction away from the sliding block (120) to a maximum stroke, the locking block abuts against the boss.

8. The medical surgical forceps according to claim 7, characterized in that: The driving unit (100) has a first action and a second action; In the first action, the button (110) applies pressure in the direction of the fixed block (130), so that the protrusion (111) pushes the sliding block (120) in the direction of the tweezers (220), thereby pushing the sliding block (120) to move in the direction of the tweezers (220) and squeezing the two plectrums (230), so that the two plectrums (230) move closer together and drive the two tweezers (220) to close; In the second action, the button (110) stops applying pressure in the direction of the fixed block (130), and then the reset spring (160) is reset, and drives the sliding block (120) to move away from the tweezers (220), thereby driving the sliding block (120) to move away from the tweezers (220) and away from the paddle (230), so that the paddle (230) is reset to separate the two tweezers (220).

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