Novel medical surgical tissue grasping forceps

Abstract

The utility model discloses a pair of novel medical surgical tissue grasping forceps, which comprises a tip tube, a pair of forceps forceps and a pair of forceps forceps, the tip jaw is arranged at one end of the tip tube; the structure of each of the movable jaw and the tip jaw is that an arc-shaped clamping part is arranged at one end, the clamping surface is sawtooth-shaped, and a hemispherical accommodating cavity is formed in the middle of each of the tip jaw and the movable jaw; the connecting rod is arranged in the tip tube in a sliding manner; wherein one end of the movable jaw is matched with one end of the tip jaw to form a tong head, and the other end of the movable jaw is rotationally connected with one end of the connecting rod and the tip tube; the operating handle is connected with the other end of the tip tube and the other end of the connecting rod; and the handle self-locking mechanism is arranged on the operating handle.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a novel medical operation tissue forceps. BACKGROUND

[0002] Arthroscopic surgery is different from conventional surgery, and the arthroscopic surgery is performed on lesions or damaged structures in the joint cavity under an arthroscope, and the surgery has high technical requirements, is difficult to operate and has high standards for operation, tendon injury is a common disease in the field of sports medicine, with the continuous development of sports medicine in orthopedics, the number of tendon repair surgeries shows a rising trend year by year, and in the process of tendon repair surgery, tissue forceps are usually used to grasp tissue, and then threading and fixing operations are performed. At present, tissue forceps are generally used to evaluate the tension of tendon tissue to determine the position of suture fixation. However, the existing tissue forceps are prone to cause tissue shedding when the tissue forceps are used to pull the tissue in a high tension state. In addition, during the operation process, the doctor needs to hold the tissue forceps for a long time, which is very inconvenient, and the tissue forceps are easy to slip out of the doctor's hand, thereby causing the grasped tissue to loosen and affecting the smooth progress of the operation. SUMMARY

[0003] The utility model discloses a novel medical operation tissue forceps which can effectively prevent tissue from falling off in a high tension state, improve the inconvenience and easy-to-slip condition of long-term holding by doctors, improve operation efficiency, ensure operation safety and reduce the fatigue feeling of doctors during operation.

[0004] The utility model discloses a technical scheme which is characterized by comprising:

[0005] A novel medical operation tissue forceps, comprising:

[0006] The sharp end pipe is internally hollow;

[0007] The sharp end jaw is arranged at one end of the sharp end pipe;

[0008] The movable jaw and the sharp end jaw are both provided with an arc-shaped clamping portion at one end, the clamping surface is serrated, and a semispherical accommodating cavity is arranged at the middle portion;

[0009] The connecting rod is slidably arranged in the sharp end pipe;

[0010] One end of the movable jaw is matched with one end of the sharp end jaw to form a jaw head, and the other end is rotationally connected with one end of the connecting rod and the sharp end pipe;

[0011] The operation handle is connected with the other end of the sharp end pipe 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 is fixedly connected to the other end of the tip jaw;

[0015] A tip jaw connecting groove is the other end of the tip jaw; the tip jaw connecting groove is a U-shaped groove; the tip jaw connecting groove is in communication with the inside of the connecting tube;

[0016] Two tip jaw connecting holes are oppositely arranged on the lower sides of the tip jaw connecting groove.

[0017] Preferably, the operating handle comprises:

[0018] A thumb operating rod is fixedly connected to the other end of the connecting tube;

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

[0020] An installation groove is arranged on the thumb operating rod;

[0021] Preferably, the other end of the thumb operating rod and the finger operating rod is a circular ring structure for accommodating fingers.

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

[0023] A ratchet is fixedly installed in the installation groove;

[0024] A hook is installed on the finger operating rod, and the upper end of the hook is provided with a spring;

[0025] The other end of the hook cooperates with the ratchet to be self-locked, and the cooperation edge is a tooth shape;

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

[0027] Preferably, the movable jaw further comprises:

[0028] A movable jaw lug is the other end of the movable jaw; the movable jaw lug is oppositely arranged by two connecting plates;

[0029] The tip jaw connecting slot is arranged outside the movable jaw lug, and one end of the connecting rod is arranged between the two connecting plates.

[0030] The two first movable jaw connecting holes are oppositely arranged on the two connecting plates and are located at the lower part of the movable jaw lug.

[0031] The two second movable jaw connecting holes are oppositely arranged on the two connecting plates and are located at the upper part of the movable jaw lug.

[0032] Preferably, the connecting rod further comprises:

[0033] The first connecting rod connecting hole is arranged at the end of the connecting rod connected with the movable jaw.

[0034] The second connecting rod connecting hole is arranged at the end of the connecting rod connected with the finger operating rod.

[0035] Preferably, the two tip jaw connecting holes and the two first movable jaw connecting holes are riveted by a first pin to realize the rotary connection between the tip jaw and the movable jaw, and the two second movable jaw connecting holes and the first connecting rod connecting hole are connected by a second pin to realize the rotary connection between the movable jaw and the connecting rod.

[0036] Preferably, the utility model further comprises:

[0037] The third pin is arranged in the second connecting rod connecting hole, and the other end of the connecting rod is rotatably connected with one end of the finger operating rod through the third pin.

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

[0039] The utility model discloses the beneficial effect is:

[0040] The utility model provides a novel medical operation tissue grabbing forceps, and the arc sawtooth shape clamping part of the head of forceps, the hemispherical accommodating cavity and the concave-convex cooperation structure can reduce tissue shedding and repeated grabbing, improve operation efficiency and safety, the high strength, high hardness head of forceps metal enhances mechanical strength and life, reduces medical accident risk, the operation handle designed according to the small hand of Chinese people can reduce the fatigue feeling of doctor long time operation, the self-locking mechanism of operation handle can be automatically locked when being grabbed for a long time, reduces the force of doctor and facilitates multiple stretch operation, can effectively avoid tissue shedding under high tension, improves the inconvenience and easy to drop hand condition of doctor long time holding, improves operation efficiency, guarantees operation safety and reduces the operation fatigue feeling of doctor. ACCURACY

[0041] Figure 1 It is the tip jaw structure schematic view of the utility model.

[0042] Figure 2 The schematic diagram of the movable jaw structure is described in the utility model.

[0043] Figure 3 The schematic diagram of the connecting rod structure is described in the utility model.

[0044] Figure 4 The schematic diagram of the handle self-locking mechanism structure is described in the utility model.

[0045] Figure 5 The schematic diagram of the plier head structure is described in the utility model.

[0046] Figure 6 The sectional view of the plier head is described in the utility model.

[0047] Figure 7 The exploded structure schematic diagram of the novel medical operation tissue pliers is described in the utility model.

[0048] Figure 8 The open state structure schematic diagram of the novel medical operation tissue pliers is described in the utility model.

[0049] Figure 9 The closed state structure schematic diagram of the novel medical operation tissue pliers is described in the utility model.

[0050] Reference signs: tip tube 100, tip jaw 110, tip jaw clamping part 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 part 211, movable jaw accommodating cavity 212, movable jaw lug 213, first movable jaw connecting hole 214, second movable jaw connecting hole 215, connecting rod 310, first connecting rod connecting hole 311, thumb operating rod 410, mounting groove 411, finger operating rod 420, ratchet wheel 510, hook 520, elastic sheet 521, first pin 610, second pin 620. DETAILED DESCRIPTION

[0051] The utility model will be further explained in detail in combination with the drawings, so that the person skilled in the art can implement according to the description text.

[0052] As Figure 1As shown, the tip tube 100 has a hollow internal structure. The tip tube 100 includes: a tip jaw 110, which is disposed at one end of the tip tube 100; the tip jaw 110 has an arc-shaped tip jaw clamping part 111 at one end with a serrated clamping surface to increase gripping force when clamping tissue and prevent tissue from falling off; a hemispherical tip jaw receiving cavity 112 in the middle; and a tip jaw connecting groove 113 at the other end; the tip jaw clamping part 111 has a groove in the middle; the tip jaw connecting groove 113 is a U-shaped groove; two tip jaw connecting holes 114 are disposed opposite each other on the lower sides of the tip jaw connecting groove 113; and 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 integrally formed or fixedly connected by welding or other methods; the tip jaw connecting groove 113 communicates with the interior of the connecting tube 120.

[0053] like Figure 2 As shown, the movable jaw 210 has a structure basically the same as the pointed jaw 110. The movable jaw 210 has an arc-shaped movable jaw clamping part 211 at one end with a serrated clamping surface, which increases the gripping force when clamping tissue and prevents tissue from falling off. It has a hemispherical movable jaw receiving cavity 212 in the middle and a movable jaw lifting lug 213 at the other end. The movable jaw clamping part 211 has a protruding structure. The movable jaw lifting lug 213 consists of two connecting plates arranged opposite each other. Two first movable jaw connecting holes 214 are arranged opposite each other on the two connecting plates, located at the lower part of the movable jaw lifting lug 213, and corresponding to the positions of the two pointed jaw connecting holes 114. Two second movable jaw connecting holes 215 are arranged opposite each other on the two connecting plates, located at the upper part of the movable jaw lifting lug 213.

[0054] like Figure 3 As shown, the connecting rod 310 is slidably disposed within the connecting tube 120; the first connecting rod connecting hole 311 is disposed at the end of the connecting rod 310 that connects 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 disposed at the end of the connecting rod 310 that connects to the finger operating lever 420.

[0055] like Figure 4As shown in the figure, the handle self-locking mechanism comprises: a ratchet wheel 510 fixedly installed in the mounting groove 411 of the thumb operating rod 410 through two handle pins; a hook 520 fixedly installed at one end of the top of the finger operating rod 420 through two handle pins, the hook 520 being provided with an elastic piece 521 at the upper part of the connected end of the hook 520, the other end of the hook 520 being tightly closed with the tooth part of the ratchet wheel 510 by means of the elastic piece 521, and the hook 520 being formed into a handle self-locking mechanism in cooperation, the cooperation edge of the hook 520 being a tooth shape; wherein the size of the mounting groove 411 is larger than the ratchet wheel 510, and the mounting groove 411 is provided with an empty groove at the lower part after the installation of the ratchet wheel 510; the other end of the hook 520 is inserted into the empty groove and cooperates with the ratchet of the ratchet wheel 510, so that the operation handle is self-locked.

[0056] As shown in the figure, the utility model provides a novel medical operation tissue grab pincers, include: the tip pipe 100, the movable mouth 210, the connecting rod 310, handle self-locking mechanism and operation handle. Figures 5-9

[0057] The handle self-locking mechanism is arranged on the operation handle, can guarantee that the operation handle is self-locked when needing to be grabbed for a long time, reduces the force condition of the doctor, and simultaneously, the doctor is convenient for multiple stretching operations under the condition of being grabbed, makes the doctor reduce the fatigue feeling under the condition of long-time operation.

[0058] The operation handle is connected with the other end of the tip pipe 100 and the other end of the connecting rod 310; wherein the operation handle comprises: the thumb operating rod 410 is fixedly connected with the other end of the connecting pipe 120; the finger operating rod 420 is rotatably connected with the other end of the connecting rod 310 and rotatably connected with the thumb operating rod 410 through a handle pin; the mounting groove 411 is arranged in the middle part of the thumb operating rod 410; wherein the other end 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 jaw head, and the other end is rotationally connected with 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 in 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, reducing the situation of tissue falling off, blocking the sliding of the free body, effectively reducing the repeated grabbing caused by falling off, improving the efficiency and safety of the operation; wherein when the jaw 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 ball sockets is two, which can accommodate the free body under the condition of ensuring the occlusal force, thereby improving the clamping effect of the free body and eliminating the situation of the free body falling off, thereby improving the safety of the operation; the jaw head is made of high-strength and high-hardness metal material, which will not be broken, effectively improving the mechanical strength and service life, ensuring that the jaw head will not be broken and left in the cavity, thereby greatly reducing the risk of medical accidents; the tip jaw connecting groove 113 is sleeved outside the movable jaw lug 213, the two tip jaw connecting holes 114 and the two first movable jaw connecting holes 214 are riveted by the first pin 610, and a gap is left during riveting, so that the tip jaw 110 and the movable jaw 210 are rotationally connected to form a rotating structure; one end of the connecting rod 310 is arranged between the two connecting plates, the two second movable jaw connecting holes 215 and the first connecting rod connecting hole 311 are connected by the second pin 620, so that the movable jaw 210 and the connecting rod 310 are rotationally connected to form a driving structure for driving the jaw head to open and close; the end of the connecting rod 310 connected with the movable jaw 210 is provided with a limiting groove, and when the limiting groove is engaged on the first pin 610, the jaw head is in a closed state.

[0060] The third pin is a shear pin arranged in the second connecting rod connecting hole; the other end of the connecting rod 310 is rotationally connected with 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 pipe 120, so as to open or close the jaw head.

[0061] The working process of the novel medical operation tissue grabbing forceps is as follows: holding the thumb operating rod 410 and the finger operating rod 420, driving the finger operating rod 420 to move towards the thumb operating rod 410, the finger operating rod 420 drives the connecting rod 310 to slide in the connecting pipe 120, so that the movable jaw 210 rotates to be in a closed state with the pointed jaw 110, meanwhile, the hook 520 and the tooth part of the ratchet wheel 510 are tightly closed by the elastic sheet 521 on the upper part of the hook 520, the operating handle is locked, the jaw head is kept in a closed state, and the traction or clamping operation of the tissue is carried out; when the traction or clamping operation is finished, the other end of the hook 520 is pressed, the other end of the hook 520 is separated from the ratchet, the hook 520 is disengaged from the ratchet wheel 510, so that the self-locking state of the operating handle is released, and the finger operating rod 420 can be freely moved, so that the jaw head can be freely opened or closed.

[0062] The novel medical operation tissue grabbing forceps has the following advantages: the pointed jaw and the movable jaw of the jaw head part are respectively provided with an arc sawtooth-shaped clamping part and a middle half-spherical accommodating cavity, the concave-convex matching structure can hook the tissue and block the free body from sliding out, a ball socket is formed when the jaw head is closed to accommodate the free body, the tissue falling and repeated grabbing are effectively reduced, the operation efficiency and safety are improved, the jaw head is made of high-strength and high-hardness metal, the mechanical strength and service life are enhanced, and the risk of medical accidents is reduced; the shape and spacing of the operating handle are ergonomically designed according to the small hand size of Chinese people, the doctor can better reduce fatigue even in long-time operation, meanwhile, the handle self-locking mechanism of the operating handle can be automatically locked when the tissue is grabbed for a long time, the doctor's force is reduced, and the multiple stretching and pulling operations are facilitated; the problems that the existing tissue grabbing forceps is easy to cause the tissue to fall off under high tension, the doctor is not easy to operate and the tissue is easy to slip off are solved, and a safer, more efficient and convenient operation tool is provided for tendon repair and other operations.

[0063] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, it can be applied to various fields suitable for the utility model, and other modifications can be easily realized by those skilled in the art, therefore, the utility model is not limited to specific details and the figures shown and described herein without departing from the general concept defined by the claims and the equivalent range.

Claims

1. A new type of medical surgical tissue grasper, characterized in that, The utility model provides a kind of sharp end pipe, sharp end jaw, movable jaw, connecting rod, operating handle and handle self-locking mechanism, which are connected to each other. The sharp end pipe has a hollow structure. The sharp end jaw is arranged at one end of the sharp end pipe. The movable jaw and the sharp end jaw are both provided with an arc-shaped clamping portion at one end, and the clamping surface is serrated. The connecting rod is slidably arranged in the sharp end pipe. One end of the movable jaw is connected with one end of the sharp end jaw to form a jaw head, and the other end is rotatably connected with one end of the connecting rod and the sharp end pipe. The operating handle is connected with the other end of the sharp end pipe and the other end of the connecting rod. The handle self-locking mechanism is arranged on the operating handle.

2. The novel medical surgical tissue grasping forceps according to claim 1, wherein, The sharp end pipe further comprises a connecting pipe, a sharp end jaw connecting slot, and two sharp end jaw connecting holes. One end of the connecting pipe is fixedly connected with the other end of the sharp end jaw. The sharp end jaw connecting slot is a U-shaped slot. The two sharp end jaw connecting holes are oppositely arranged at the lower part of the sharp end jaw connecting slot.

3. The novel medical surgical tissue grasping forceps according to claim 2, wherein, The operating handle comprises a thumb operating rod and a finger operating rod. One end of the thumb operating rod is fixedly connected with the other end of the connecting pipe. One end of the finger operating rod is rotatably connected with the other end of the connecting rod and the thumb operating rod. An installation slot is arranged on the thumb operating rod. The other end of the thumb operating rod and the finger operating rod are both in a circular ring structure for accommodating fingers.

4. The novel medical surgical tissue grasping forceps according to claim 3, wherein, The handle self-locking mechanism comprises a ratchet wheel and a hook. One end of the hook is provided with a spring sheet and is arranged on the finger operating rod. The other end of the hook is self-locked with the ratchet wheel, and the matching edge is in a tooth shape. The size of the installation slot is larger than that of the ratchet wheel.

5. The novel medical surgical tissue grasping forceps according to claim 1, wherein, The other end of the hook is inserted into the empty slot to match with the ratchet wheel, so as to self-lock the operating handle.

6. The novel medical surgical tissue grasping forceps according to claim 3, wherein, The sharp end jaw clamping portion and the movable jaw clamping portion are in a concave-convex matching structure. When the jaw head is in a closed state, the sharp end jaw accommodating cavity and the movable jaw accommodating cavity are closed to form a ball socket for accommodating a free body. The movable jaw further comprises a movable jaw lifting lug. The sharp end jaw connecting slot is arranged outside the movable jaw lifting lug. One end of the connecting rod is arranged between the two connecting plates.

7. The novel medical surgical tissue grasping forceps according to claim 6, wherein, Two first movable jaw connecting holes are oppositely arranged on the two connecting plates and located at the lower part of the movable jaw lifting lug. Two second movable jaw connecting holes are oppositely arranged on the two connecting plates and located at the upper part of the movable jaw lifting lug. The connecting rod further comprises a first connecting rod connecting hole and a second connecting rod connecting hole. The first connecting rod connecting hole is arranged at one end of the connecting rod connected with the movable jaw. The second connecting rod connecting hole is arranged at one end of the connecting rod connected with the finger operating rod.

8. The novel medical surgical tissue grasping forceps according to claim 7, wherein, The two tip jaw connecting holes and the two first movable jaw connecting holes are riveted by first pins to make the tip jaw and the movable jaw rotatably connected; the two second movable jaw connecting holes and the first connecting rod connecting hole are connected by second pins to make the movable jaw and the connecting rod rotatably connected.

9. The novel medical surgical tissue grasping forceps according to claim 7, wherein, Also comprising: A third pin arranged in the second connecting rod connecting hole; The other end of the connecting rod is rotatably connected with one end of the finger operating rod through the third pin.

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

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