A new type of medical surgical tissue grasping forceps

Abstract

The present invention discloses a novel medical surgical tissue grasping forceps, comprising: a tip tube, the interior of which is a hollow structure; a tip jaw, which is arranged at one end of the tip tube; a movable jaw and the tip jaw, both of which have an arc-shaped clamping portion at one end, a serrated clamping surface, and a hemispherical accommodating cavity in the middle; a connecting rod, which is slidably arranged in the tip tube; wherein one end of the movable jaw cooperates with one end of the tip jaw to form a forceps head, and the other end is rotatably connected to one end of the connecting rod and the tip tube; an operating handle, which is connected to the other end of the tip tube and the other end of the connecting rod; and a handle self-locking mechanism, which is arranged on the operating handle.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to a novel medical surgical tissue grasping forceps. Background Art

[0002] Arthroscopic surgery is different from conventional surgery. Arthroscopic surgery is performed on lesions or damaged structures in the joint cavity under arthroscopy. This type of surgery has high technical requirements, is difficult to operate, and has high standards for operating. Tendon injuries are common in the field of sports medicine. With the continuous development of orthopedic sports medicine, the number of tendon repair surgeries has shown an increasing trend year by year. During tendon repair surgery, tissue graspers are usually used to grasp tissues, and then thread and fix operations are performed. At present, tissue graspers are generally used to assess the tension of tendon tissues to determine the position of suture fixation. However, when the existing tissue graspers are in a high tension state, using tissue graspers to pull tissues can easily cause tissue detachment. At the same time, during the operation, the doctor needs to hold the tissue graspers for a long time. This operation method is very inconvenient, and the tissue graspers are easy to slip out of the doctor's hands, which can cause the grasped tissue to loosen, affecting the smooth progress of the operation. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of medical surgical tissue grasping forceps, which can effectively prevent tissue from falling off under high tension, improve the inconvenience of long-term holding and easy slipping of the doctor's hands, improve surgical efficiency, ensure surgical safety and reduce the doctor's surgical fatigue.

[0004] The technical solution provided by the present invention is:

[0005] A novel medical surgical tissue grasping forceps, comprising:

[0006] A tip tube having a hollow structure inside;

[0007] a tip jaw disposed at one end of the tip tube;

[0008] The movable jaws and the pointed jaws have a structure in which one end is provided with an arc-shaped clamping portion, the clamping surface is serrated, and the middle part is provided with a hemispherical accommodating cavity;

[0009] a connecting rod slidably disposed within the tip tube;

[0010] Wherein, one end of the movable jaw cooperates with one end of the tip jaw to form a jaw head, and the other end is rotatably connected to one end of the connecting rod and the tip tube;

[0011] an operating handle connected to the other end of the tip tube and the other end of the connecting rod;

[0012] A handle self-locking mechanism is arranged on the operating handle.

[0013] Preferably, the tip tube further comprises:

[0014] A connecting tube, one end of which is fixedly connected to the other end of the tip jaw;

[0015] A tip jaw connection groove, which is the other end of the tip jaw; the tip jaw connection groove is a U-shaped groove; the tip jaw connection groove is connected to the inside of the connecting tube;

[0016] Two sharp end jaw connection holes are arranged oppositely on both sides of the lower part of the sharp end jaw connection groove.

[0017] Preferably, the operating handle comprises:

[0018] A thumb operating lever, one end of which is fixedly connected to the other end of the connecting tube;

[0019] A finger operating lever, one end of which is rotatably connected to the other end of the connecting rod and the thumb operating lever;

[0020] A mounting slot, which is provided on the thumb operating rod;

[0021] Wherein, the other ends of the thumb operating rod and the finger operating rod are both circular ring structures for accommodating fingers.

[0022] Preferably, the handle self-locking mechanism comprises:

[0023] A ratchet wheel fixedly mounted in the mounting groove;

[0024] A hook, one end of which is provided with a spring sheet at the upper part and is mounted on the finger operating rod; the other end of the hook cooperates with the ratchet for self-locking, and the cooperation edge is toothed;

[0025] The size of the installation slot is larger than the ratchet, and an empty slot is left at the bottom of the installation slot after the ratchet is installed; the other end of the hook passes through the empty slot and cooperates with the ratchet teeth of the ratchet, so that the operating handle is self-locking.

[0026] Preferably, the pointed jaw clamping portion and the movable jaw clamping portion are of a concave-convex matching structure, wherein a groove is provided in the middle of the pointed jaw clamping portion; when the pliers head is in a closed state, the pointed jaw accommodating cavity and the movable jaw accommodating cavity are closed to form a ball socket for accommodating a loose body.

[0027] Preferably, the movable jaw further comprises:

[0028] The movable jaw lifting lug is the other end of the movable jaw; the movable jaw lifting lug is two connecting plates arranged opposite to each other;

[0029] Wherein, the tip jaw connection groove is sleeved on the outside of the movable jaw lifting ear; one end of the connecting rod is arranged between the two connecting plates;

[0030] Two first movable jaw connecting holes are arranged opposite to each other on the two connecting plates and are located below the movable jaw lifting ears;

[0031] Two second movable jaw connecting holes are arranged oppositely on the two connecting plates and are located above the movable jaw lifting ears.

[0032] Preferably, the connecting rod further comprises:

[0033] A first connecting rod connecting hole, which is provided at one end of the connecting rod connected to the movable jaw;

[0034] A second connecting rod connecting hole is arranged at one end of the connecting rod connected to the finger operating rod.

[0035] Preferably, the two pointed jaw connecting holes and the two first movable jaw connecting holes are riveted via a first pin, so that the pointed jaw is rotatably connected to the movable jaw; the two second movable jaw connecting holes and the first connecting rod connecting hole are connected via a second pin, so that the movable jaw is rotatably connected to the connecting rod.

[0036] Preferably, it also includes:

[0037] A third pin is arranged in the connecting hole of the second connecting rod; the other end of the connecting rod is rotatably connected to one end of the finger operating rod through the third pin.

[0038] Preferably, the number of the ball sockets is two.

[0039] The beneficial effects of the present invention are:

[0040] The novel medical surgical tissue grasping forceps provided by the present invention have an arc-shaped serrated clamping part, a hemispherical accommodating cavity and a concave-convex matching structure of the forceps head, which can reduce tissue shedding and repeated grasping, thereby improving surgical efficiency and safety; the high-strength and high-hardness metal of the forceps head enhances mechanical strength and life and reduces the risk of medical accidents; the operating handle designed according to the small and medium-sized hands of Chinese people can reduce the fatigue of doctors during long-term surgery; the self-locking mechanism of the operating handle can automatically lock when grasped for a long time, reducing the doctor's force and facilitating multiple stretching and pulling operations, which can effectively prevent tissue from falling off under high tension, improve the inconvenience of long-term gripping by doctors and the easy slipping of the hands, improve surgical efficiency, ensure surgical safety and reduce the doctor's fatigue during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the pointed jaw structure of the present invention.

[0042] Figure 2 The figure is a schematic diagram of the movable jaw structure of the present invention.

[0043] Figure 3 This is a schematic diagram of the connecting rod structure of the present invention.

[0044] Figure 4 This is a schematic diagram of the structure of the handle self-locking mechanism of the present invention.

[0045] Figure 5 The figure is a schematic diagram of the clamp head structure of the present invention.

[0046] Figure 6 It is a cross-sectional view of the pliers head described in the present invention.

[0047] Figure 7 This is a schematic diagram of the exploded structure of the novel medical surgical tissue grasping forceps described in the present invention.

[0048] Figure 8 This is a schematic structural diagram of the opening state of the novel medical surgical tissue grasping forceps described in the present invention.

[0049] Fig. 9 This is a schematic diagram of the closed state structure of the novel medical surgical tissue grasping forceps described in the present invention.

[0050] Figure numerals: tip tube 100, tip jaw 110, tip jaw clamping portion 111, tip jaw accommodating cavity 112, tip jaw connecting groove 113, tip jaw connecting hole 114, connecting tube 120, movable jaw 210, movable jaw clamping portion 211, movable jaw accommodating cavity 212, movable jaw lifting ear 213, first movable jaw connecting hole 214, second movable jaw connecting hole 215, connecting rod 310, first connecting rod connecting hole 311, thumb operating lever 410, mounting groove 411, finger operating lever 420, ratchet 510, hook 520, spring piece 521, first pin 610, second pin 620. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0052] like Figure 1As shown, the tip tube 100 has a hollow structure inside; the tip tube 100 includes: a tip jaw 110, which is arranged at one end of the tip tube 100; the structure of the tip jaw 110 is that an arc-shaped tip jaw clamping part 111 is provided at one end, and the clamping surface is serrated, which increases more gripping force when clamping tissue to prevent the tissue from falling off, a hemispherical tip jaw accommodating cavity 112 is provided in the middle, and a tip jaw connecting groove 113 is provided at the other end; a groove is provided in the middle of the tip jaw clamping part 111; the tip jaw connecting groove 113 is a U-shaped groove; two tip jaw connecting holes 114 are relatively arranged on both sides of the lower part of the tip jaw connecting groove 113; a connecting tube 120, one end of which is fixedly connected to the other end of the tip jaw 110; wherein the tip jaw 110 and the connecting tube 120 are an integrally formed structure or are fixedly connected by welding or the like; the tip jaw connecting groove 113 is communicated with the inside of the connecting tube 120.

[0053] like Figure 2 As shown, the movable jaw 210 has basically the same structure as the pointed jaw 110. The structure of the movable jaw 210 is that an arc-shaped movable jaw clamping portion 211 is provided at one end, and the clamping surface is serrated. When clamping the tissue, more gripping force is added to prevent the tissue from falling off. A hemispherical movable jaw accommodating cavity 212 is provided in the middle, and a movable jaw lifting ear 213 is provided at the other end; the movable jaw clamping portion 211 is a convex structure; the movable jaw lifting ear 213 is arranged oppositely by two connecting plates; two first movable jaw connecting holes 214 are arranged oppositely on the two connecting plates, located at the lower part of the movable jaw lifting ear 213, and corresponding to the positions of the two pointed jaw connecting holes 114; two second movable jaw connecting holes 215 are arranged oppositely on the two connecting plates, located at the upper part of the movable jaw lifting ear 213.

[0054] like Figure 3 As shown, the connecting rod 310 is slidably arranged in the connecting tube 120; the first connecting rod connecting hole 311 is arranged at one end of the connecting rod 310 connected to the movable jaw 210 and corresponds to the position of the two second movable jaw connecting holes 215; the second connecting rod connecting hole is arranged at one end of the connecting rod 310 connected to the finger operating rod 420.

[0055] like Figure 4As shown, the handle self-locking mechanism includes: a ratchet 510, which is fixedly installed in the installation groove 411 of the thumb operating rod 410 through two handle pins; a hook 520, one end of which is fixedly installed on the top of the finger operating rod 420 through two handle pins, and the upper part of the hook 520 connected to the finger operating rod 420 is provided with a spring piece 521, relying on the spring piece 521, the other end of the hook 520 is tightly closed with the tooth part of the ratchet 510 to form a handle self-locking mechanism, and the matching edge of the hook 520 is tooth-shaped; wherein, the size of the installation groove 411 is larger than the ratchet 510, and an empty groove is left at the lower part of the installation groove 411 after the ratchet 510 is installed; the other end of the hook 520 passes through the empty groove and cooperates with the ratchet teeth of the ratchet 510 to make the operating handle self-locking.

[0056] like Figure 5-9 As shown, a novel medical surgical tissue grasping forceps provided by the present invention comprises: a tip tube 100, a movable jaw 210, a connecting rod 310, a handle self-locking mechanism and an operating handle.

[0057] The handle self-locking mechanism is arranged on the operating handle, which can ensure that the operating handle locks itself when it needs to be grasped for a long time, thereby reducing the doctor's force. At the same time, when the doctor grasps it tightly, it is convenient for the doctor to perform multiple stretching operations, which reduces the doctor's fatigue during long-term surgery.

[0058] The operating handle is connected to the other end of the tip tube 100 and the other end of the connecting rod 310; wherein, the operating handle includes: one end of the thumb operating rod 410 is fixedly connected to the other end of the connecting tube 120; one end of the finger operating rod 420 is rotatably connected to the other end of the connecting rod 310, and is rotatably connected to the thumb operating rod 410 through a handle pin; the mounting groove 411 is arranged in the middle of the thumb operating rod 410; wherein, the other ends of the thumb operating rod 410 and the finger operating rod 420 are both circular ring structures for accommodating fingers.

[0059] One end of the movable jaw 210 cooperates with one end of the tip jaw 110 to form a pliers head, and the other end is rotatably connected to one end of the connecting rod 310 and the tip jaw connecting groove 113; the tip jaw clamping part 111 and the movable jaw clamping part 211 are a concave-convex matching structure, which ensures that after grabbing the tissue, the tip jaw clamping part 111 and the movable jaw clamping part 211 can hook the tissue, reduce the situation of tissue shedding, and at the same time prevent the loose body from sliding out, effectively reduce the situation of repeated grasping due to shedding, and improve the efficiency and safety of the operation; wherein, when the pliers head is in a closed state, the tip jaw accommodating cavity 112 and the movable jaw accommodating cavity 212 are closed to form a ball socket. In this embodiment, the number of the ball socket is set to two. Under the condition of ensuring the bite force, the ball socket can accommodate the loose body, thereby improving the clamping effect of the loose body, preventing the loose body from falling, and improving the safety of the operation; the pliers head is made of high-strength and high-hardness metal material, which will not produce The tip jaw connection groove 113 is sleeved on the outer side of the movable jaw lifting ear 213, and the two tip jaw connection holes 114 are riveted with the two first movable jaw connection holes 214 by a first pin 610, and a gap is left during riveting, so that the tip jaw 110 is rotatably connected with the movable jaw 210 to form a rotating structure; one end of the connecting rod 310 is arranged between the two connecting plates, and the two second movable jaw connection holes 215 are connected with the first connecting rod connection hole 311 by a second pin 620, so that the movable jaw 210 is rotatably connected with the connecting rod 310 to form a driving structure for driving the opening and closing of the pliers head; a limiting groove is provided at the end of the connecting rod 310 connected with the movable jaw 210, and when the limiting groove is engaged with the first pin 610, the pliers head is in a closed state.

[0060] The third pin, which is a shear pin, is arranged in the connecting hole of the second connecting rod; the other end of the connecting rod 310 is rotatably connected to one end of the finger operating rod 420 through the third pin to form a driving structure for driving the connecting rod 310 to slide in the connecting tube 120, thereby opening or closing the pliers head.

[0061] The working process of the novel medical surgical tissue grasping forceps provided by the present invention is as follows: holding the thumb operating rod 410 and the finger operating rod 420, driving the finger operating rod 420 to move toward the thumb operating rod 410, and the finger operating rod 420 drives the connecting rod 310 to slide in the connecting tube 120, so that the movable jaw 210 rotates and is in a closed state with the tip jaw 110, and at the same time, relying on the spring piece 521 on the upper part of the hook 520, the hook 520 and the tooth part of the ratchet 510 are tightly matched and the operating handle is locked to ensure that the clamp head remains in a closed state, and the tissue traction or clamping operation is performed; when the traction or clamping operation is completed, the other end of the hook 520 is pressed to separate the other end of the hook 520 from the ratchet, and the hook 520 is released from the ratchet 510, thereby releasing the self-locking state of the operating handle, and the finger operating rod 420 can move freely, so that the clamp head can be opened or closed freely.

[0062] The novel medical surgical tissue grasping forceps provided by the present invention have arc-shaped serrated clamping parts and a hemispherical accommodating cavity in the middle part of the tip jaws and the movable jaws of the forceps head. The concave-convex matching structure can hook tissue and prevent loose bodies from sliding out. When the jaws are closed, a ball socket is formed to accommodate loose bodies, which effectively reduces tissue shedding and repeated grasping, improves surgical efficiency and safety, and the forceps head is made of high-strength and high-hardness metal to enhance mechanical strength and service life, and reduce the risk of medical accidents. As for the operating handle, the shape and spacing of the operating handle are ergonomically designed according to the small and medium-sized hands of Chinese people, so that doctors can better reduce fatigue during long-term surgical card clearing. At the same time, the operating handle is equipped with a handle self-locking mechanism, which can be locked by itself when grasped for a long time, reducing the doctor's force and facilitating multiple stretching and pulling operations. It effectively solves the problems of existing tissue grasping forceps that easily cause tissue shedding under high tension and doctors are inconvenient to operate and easy to slip out of their hands, and provides a safer, more efficient and convenient operating tool for tendon repair and other surgeries.

[0063] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A new type of medical surgical tissue grasping forceps, characterized in that: include: A tip tube having a hollow structure inside; a tip jaw disposed at one end of the tip tube; The movable jaws and the pointed jaws have a structure in which one end is provided with an arc-shaped clamping portion, the clamping surface is serrated, and the middle part is provided with a hemispherical accommodating cavity; a connecting rod slidably disposed within the tip tube; Wherein, one end of the movable jaw cooperates with one end of the tip jaw to form a jaw head, and the other end is rotatably connected to one end of the connecting rod and the tip tube; an operating handle connected to the other end of the tip tube and the other end of the connecting rod; A handle self-locking mechanism is arranged on the operating handle.

2. The novel medical surgical tissue grasping forceps according to claim 1 is characterized in that: The tip tube also includes: A connecting tube, one end of which is fixedly connected to the other end of the tip jaw; A tip jaw connection groove, which is the other end of the tip jaw; the tip jaw connection groove is a U-shaped groove; the tip jaw connection groove is connected to the inside of the connecting tube; Two sharp end jaw connection holes are arranged oppositely on both sides of the lower part of the sharp end jaw connection groove.

3. The novel medical surgical tissue grasping forceps according to claim 2 is characterized in that: The operating handle comprises: A thumb operating lever, one end of which is fixedly connected to the other end of the connecting tube; A finger operating lever, one end of which is rotatably connected to the other end of the connecting rod and the thumb operating lever; A mounting slot, which is provided on the thumb operating rod; Wherein, the other ends of the thumb operating rod and the finger operating rod are both circular ring structures for accommodating fingers.

4. The novel medical surgical tissue grasping forceps according to claim 3 is characterized in that: The handle self-locking mechanism comprises: A ratchet wheel fixedly mounted in the mounting groove; A hook, one end of which is provided with a spring sheet at the upper part and is mounted on the finger operating rod; the other end of the hook cooperates with the ratchet for self-locking, and the cooperation edge is toothed; The size of the installation slot is larger than the ratchet, and an empty slot is left at the bottom of the installation slot after the ratchet is installed; the other end of the hook passes through the empty slot and cooperates with the ratchet teeth of the ratchet, so that the operating handle is self-locking.

5. The novel medical surgical tissue grasping forceps according to claim 1 is characterized in that: The pointed jaw clamping portion and the movable jaw clamping portion are of a concave-convex matching structure, wherein a groove is provided in the middle of the pointed jaw clamping portion; when the pliers head is in a closed state, the pointed jaw accommodating cavity and the movable jaw accommodating cavity are closed to form a ball socket for accommodating a loose body.

6. The novel medical surgical tissue grasping forceps according to claim 3 is characterized in that: The movable jaws also include: The movable jaw lifting lug is the other end of the movable jaw; the movable jaw lifting lug is two connecting plates arranged opposite to each other; Wherein, the tip jaw connection groove is sleeved on the outside of the movable jaw lifting ear; one end of the connecting rod is arranged between the two connecting plates; Two first movable jaw connecting holes are arranged opposite to each other on the two connecting plates and are located below the movable jaw lifting ears; Two second movable jaw connecting holes are arranged oppositely on the two connecting plates and are located above the movable jaw lifting ears.

7. The novel medical surgical tissue grasping forceps according to claim 6 is characterized in that: The connecting rod also includes: A first connecting rod connecting hole, which is provided at one end of the connecting rod connected to the movable jaw; A second connecting rod connecting hole is arranged at one end of the connecting rod connected to the finger operating rod.

8. The novel medical surgical tissue grasping forceps according to claim 7 is characterized in that: The two pointed jaw connecting holes are riveted to the two first movable jaw connecting holes through a first pin, so that the pointed jaw is rotatably connected to the movable jaw; the two second movable jaw connecting holes are connected to the first connecting rod connecting hole through a second pin, so that the movable jaw is rotatably connected to the connecting rod.

9. The novel medical surgical tissue grasping forceps according to claim 7, characterized in that: Also includes: a third pin, which is disposed in the second connecting rod connecting hole; The other end of the connecting rod is rotatably connected to one end of the finger operating rod through the third pin.

10. The novel medical surgical tissue grasping forceps according to claim 5, characterized in that: The number of the ball sockets is two.

Images