Novel multifunctional blunt separation forceps

Abstract

The application provides a new multifunctional blunt separation forceps, and relates to the technical field of medical devices. The forceps comprises a forceps rod, a forceps handle, a forceps head and a traction rod. The forceps handle is freely slidable along the forceps rod, and the forceps rod is provided with a locking member for limiting the forceps handle at a preset position of the forceps rod. The traction rod is slidably arranged at the end of the forceps rod away from the forceps handle, and the forceps handle and the traction rod are connected through a steel wire traction. The forceps head comprises two forceps jaws hinged to the end of the forceps rod. Each forceps jaw is hinged to the traction rod through a connecting rod, so as to facilitate the free opening and closing of the forceps jaws. The separation forceps is used by sliding the forceps handle backward, and the traction rod is pulled backward through the steel wire between the forceps handle and the traction rod. The traction rod drives the connecting rod to open the two forceps jaws with a large force, so as to realize the hard separation of the forceps jaws to the tissue, and help to ensure the rapid peeling and safety of the submucosal dissection (ESD), especially in avoiding perforation and bleeding.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a novel multifunctional blunt-shaped separation forceps. Background Technology

[0002] Endoscopic submucosal dissection (ESD) is a rapidly developing endoscopic procedure for digestive diseases. Due to its low cost and high effectiveness, it has become widely practiced by endoscopists, allowing for the complete endoscopic resection of many early-stage gastrointestinal cancers, eliminating the pain and organ removal associated with open surgery. ESD can achieve the same therapeutic effect as traditional surgery in tumor removal. ESD is primarily used to treat the following gastrointestinal lesions: (1) early-stage gastrointestinal cancers, (2) large flat polyps, (3) submucosal tumors, and (4) POME (prolapse and endoscopic myocardial infarction) procedures for achalasia.

[0003] Although the procedure is relatively mature, the speed and safety of submucosal dissection, especially how to avoid perforation and bleeding, still present certain challenges.

[0004] Therefore, it is particularly important to design a specialized tool for the rapid and safe removal of tissue. Summary of the Invention

[0005] The purpose of this invention is to provide a novel multifunctional blunt dissection forceps that can quickly and safely dissect tissue during ESD tumor resection surgery.

[0006] The embodiments of the present invention are implemented as follows:

[0007] A novel multifunctional blunt-shaped separating clamp includes a clamp bar, a clamp handle, a clamp head, and a traction rod. The clamp handle slides freely along the clamp bar, and the clamp bar is provided with a locking element for restricting the clamp handle to a preset position. The traction rod is slidably disposed at the end of the clamp bar away from the clamp handle, and the clamp handle and the traction rod are connected by a steel wire traction connection.

[0008] The clamp head includes two clamping segments hinged to the end of the clamping bar. Each clamping segment is hinged to the traction rod via a connecting rod to facilitate the free opening and closing of the clamping segments.

[0009] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0010] Using this dissecting forceps, by sliding the forceps handle backward, the steel wire between the forceps handle and the traction rod pulls the traction rod backward. This traction rod drives the connecting rod, allowing the two forceps flaps to open with greater force, thus achieving hard dissection of the tissue by the forceps flaps. This helps to ensure rapid and safe dissection in submucosal dissection (ESD), especially in avoiding perforation and bleeding, which has unique advantages.

[0011] In some embodiments of the present invention, the clamp bar includes a guide section and an extension section, and a "U"-shaped guide groove is provided along the length direction of the guide section, and the clamp handle is configured to be restricted to sliding within the guide groove.

[0012] Based on the above design, by setting a guide groove in the guide section of the clamp bar, the clamp handle is restricted to sliding within the guide groove, thereby guiding the movement of the clamp handle and ensuring that the clamp handle can move in a straight line along the clamp bar without deviating.

[0013] In some embodiments of the present invention, the pliers handle is integrally formed with two finger ring sleeves.

[0014] Based on the above design, by setting a finger ring sleeve on the forceps, medical staff can easily put their fingers into the finger ring sleeve to move the forceps handle, making the operation very convenient.

[0015] In some embodiments of the present invention, the outer wall of the guide section is provided with threads, and the locking member is a locking nut threadedly connected to the extension section.

[0016] Based on the above design, by setting threads on the outer wall of the guide section and threading the locking element to the guide section in the form of a locking nut, it is convenient to adjust the locking nut to fit against the forceps handle during the operation, thereby restricting the forceps handle from sliding freely. This can maintain the opening angle of the forceps arms during the operation and ensure the smooth progress of the operation.

[0017] In some embodiments of the present invention, scale markings are provided on the outer wall of the guide section along the length direction of the extension section.

[0018] Based on the above design, by setting scale markings on the outer wall of the guide section, it is possible to clearly know whether the pliers handle has slid to the preset position.

[0019] In some embodiments of the present invention, the end of the guide segment is integrally formed with a hanging ring.

[0020] Based on the above design, a hanging ring is set at the end of the guide section to facilitate the placement of the suspension separation clamp.

[0021] In some embodiments of the present invention, the extension section is provided with a through hole along its central axis, and both the traction rod and the steel wire are disposed in the through hole.

[0022] Based on the above design, by setting a through hole in the extension section and placing the traction rod and steel wire inside the through hole, the movement of the traction rod and steel wire can be guided.

[0023] In some embodiments of the present invention, the end of the traction rod away from the steel wire is exposed outside the through hole, and a cross plate for hinged connection of the connecting rod is provided at the end of the traction rod, and a return spring is fitted on the traction rod between the cross plate and the extension section.

[0024] Based on the above design, by setting a return spring on the traction rod, the clamp arm can be automatically restored to the closed state after the operation is completed.

[0025] In some embodiments of the present invention, the outer edge surface of the clamp flap is provided with a plurality of blunt teeth.

[0026] Based on the above design, by setting blunt teeth on the outer edge of the clamp flap, it is easier to use the blunt teeth to exert a certain gripping force on the tissue during the opening of the clamp flap, which is more conducive to opening the tissue, and the blunt teeth will not cause damage to the tissue. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of a novel multifunctional blunt-shaped separation forceps provided in an embodiment of the present invention. Figure 1 ;

[0029] Figure 2 A schematic diagram of the structure of a novel multifunctional blunt-shaped separation forceps provided in an embodiment of the present invention. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the pliers head in use.

[0031] Icons: 1-Pliers bar, 101-Guide section, 102-Extension section, 2-Pliers handle, 201-Finger ring sleeve, 3-Pliers head, 301-Pliers disc, 302-Connecting rod, 303-Blunt teeth, 4-Traction rod, 5-Guide slot, 6-Horizontal plate, 7-Hanging ring, 8-Locking component, 9-Reset spring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] Example 1

[0035] See Figures 1 to 3 As shown, Figure 1 A schematic diagram of the structure of a novel multifunctional blunt-shaped separation forceps provided in an embodiment of the present invention. Figure 1 ; Figure 2 A schematic diagram of the structure of a novel multifunctional blunt-shaped separation forceps provided in an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the pliers head.

[0036] This embodiment provides a novel multifunctional blunt-shaped separating clamp, including a clamp bar 1, a clamp handle 2, a clamp head 3, and a traction rod 4. The clamp handle 2 slides freely along the clamp bar 1, and the clamp bar 1 is provided with a locking member 8 for restricting the clamp handle 2 to a preset position on the clamp bar 1. The traction rod 4 is slidably disposed at the end of the clamp bar 1 away from the clamp handle 2, and the clamp handle 2 and the traction rod 4 are connected by a steel wire. The clamp head 3 includes two clamping segments 301 hinged to the end of the clamp bar 1, and each clamping segment 301 is hinged to the traction rod 4 by a connecting rod 302.

[0037] Specifically:

[0038] The aforementioned forceps handle 1 includes a guide section 101 and an extension section 102. A U-shaped guide groove 5 is provided along the length of the guide section 101. The forceps handle 2 is configured to slide within the guide groove 5, thereby ensuring that the forceps handle 2 moves along the guide section 101. Finger ring sleeves 201 are integrally formed on both sides of the forceps handle 2, allowing medical personnel to insert their fingers into the finger ring sleeves 201 when using the dissecting forceps, thus facilitating the backward pulling of the forceps handle 2.

[0039] The guide section 101 is provided with threads on its outer wall, and the locking member 8 is a locking nut, which is threadedly connected to the guide section 101.

[0040] Meanwhile, the aforementioned extension section 102 is located at the front end of the guide section 101, and the rear end of the guide section 101 is integrally formed with a hanging ring 7, which facilitates the suspension and placement of the entire separating clamp. A through hole is provided along the central axis of the extension section 102, and the traction rod 4 is inserted into the through hole and can move freely along the through hole.

[0041] Furthermore, a steel wire is installed inside the aforementioned through hole. One end of the steel wire is fixedly connected to the traction rod 4, and the other end is fixedly connected to the clamp handle 2. Thus, by moving the clamp handle 2, the traction rod 4 can be moved using the steel wire. The end of the traction rod 4 away from the steel wire protrudes outside the through hole, and a horizontal plate 6 is integrally formed at the end of the traction rod 4. A return spring 9 is fitted on the traction rod 4 between the horizontal plate 6 and the end of the extension section 102.

[0042] Furthermore, the clamping segments 301 are arranged opposite each other, and one end of each clamping segment 301 is pivotally hinged to the end of the extension segment 102, while the other end is freely openable and closed. Each clamping segment 301 is pivotally hinged to a connecting rod 302, and the end of the connecting rod 302 away from the clamping segment 301 is pivotally connected to the cross plate 6 at the end of the traction rod 4. Thus, the two clamping segments 301, the two connecting rods 302, and the traction rod 4 form a reverse five-bar linkage 302 mechanism.

[0043] As can be seen from the above, this embodiment provides a novel multifunctional blunt-shaped separating forceps, the working principle of which is as follows:

[0044] Pulling the forceps handle 2 backward causes it to pull the traction rod 4 into the through hole via a steel wire. The return spring 9 is compressed, causing the traction rod 4 to move the connecting rod 302, which is hinged to it, backward. This backward movement of the connecting rod 302 slowly opens the two forceps flaps 301, allowing for tissue dissection. Once the forceps flaps 301 have dissected the tissue and the lesion is clearly exposed, the locking nut is rotated to hold the forceps handle 2 in place, preventing it from retracting under the action of the return spring 9. This ensures that the angle of the forceps flaps 301 remains constant during the surgery, providing favorable conditions for the procedure.

[0045] After the surgery is completed, the moving locking nut separates from the clamp handle 2, and the reset spring 9 returns to its original length, pulling the traction rod 4 out of the through hole. The connecting rod 302 moves forward with the traction rod 4, thereby driving the connecting rod 302 forward, closing the two clamp flaps 301, and repositioning the tissue.

[0046] Example 2

[0047] See Figures 1 to 3 As shown, this embodiment provides a novel multifunctional blunt-shaped separation forceps, which is basically the same as that in Embodiment 1, with the main difference being:

[0048] In this embodiment, a scale mark is provided on the outer wall of the guide section 101 along the length direction of the extension section 102.

[0049] The purpose of the above design is:

[0050] Since the opening angle of the clamp flap 301 is controlled by moving the clamp handle 2 through the through hole, and the moving distance of the clamp handle 2 cannot be accurately predicted under normal circumstances, medical staff usually control the moving distance of the clamp handle 2 based on experience to control the opening angle of the clamp flap 301. This adjustment method cannot accurately determine the opening angle of the clamp flap 301.

[0051] Therefore, in this embodiment, by setting scale markings on the outer wall of the guide section 101, each scale marking corresponds to the opening angle of the clamp flap 301. By moving the clamp handle 2 to the corresponding scale, it is possible to clearly know whether the clamp handle 2 has moved to the preset position, so as to accurately control the opening degree of the clamp flap 301 during the operation.

[0052] Example 3

[0053] See Figures 1 to 3 As shown, this embodiment provides a novel multifunctional blunt-shaped separation forceps, the main difference of which is from Embodiment 1 or Embodiment 2:

[0054] The outer edge of the aforementioned clamping flap 301 is provided with several blunt teeth 303.

[0055] The purpose of the above design is:

[0056] Normally, the surface of the tissue is covered with tissue fluid and is slippery. Therefore, when the clamp flap 301 is opened, it is easy for the tissue to slip with the clamp flap 301 due to the slippery tissue, making it difficult to open the clamp flap 301.

[0057] Therefore, in this embodiment, by providing blunt teeth 303 on the outer edge surface of the clamping flap 301, it is easier to use the blunt teeth 303 to exert a certain gripping force on the tissue during the opening process of the clamping flap 301, which is more conducive to opening the tissue, and the blunt teeth 303 will not cause damage to the tissue.

[0058] In summary, the present invention has at least the following advantages or beneficial effects:

[0059] Using this dissecting forceps, by sliding the forceps handle 2 backward, the steel wire between the forceps handle 2 and the traction rod 4 is used to pull the traction rod 4 backward. This causes the traction rod 4 to drive the connecting rod 302, which allows the two sides of the forceps 301 to open with greater force, so as to achieve hard dissection of the tissue by the forceps 301. This helps to ensure the rapid dissection and safety of submucosal dissection (ESD), especially in avoiding perforation and bleeding, which has unique advantages.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A novel multifunctional blunt-shaped separating forceps, characterized in that, It includes a pliers rod (1), pliers handles (2), a pliers head (3) and a traction rod (4). The pliers handles (2) slide freely along the pliers rod (1), and a locking member (8) for restricting the pliers handles (2) to a preset position on the pliers rod (1) is provided on the pliers rod (1). The traction rod (4) is slidably arranged at one end of the pliers rod (1) far from the pliers handles (2), and the pliers handles (2) and the traction rod (4) are connected by wire traction; The pliers head (3) includes two pliers flaps (301) hinged to the end of the pliers rod (1). Each pliers flap (301) is hinged to the traction rod (4) through a connecting rod (302) to facilitate the free opening and closing of the pliers flaps (301). A number of blunt teeth (303) are provided on the outer edge surface of the pliers flaps (301); The pliers rod (1) includes a guiding section (101) and an extension section (102). A "mouth"-shaped guiding through groove (5) is arranged along the length direction of the guiding section (101), and the pliers handles (2) are configured to be restricted to slide within the guiding through groove (5); The outer wall of the guiding section (101) is provided with threads, and the locking member (8) is a locking nut threadedly connected to the extension section (102); Scale markings are arranged on the outer wall of the guiding section (101) along the length direction of the extension section (102); A through hole is arranged along the central axis of the extension section (102), and the traction rod (4) and the wire are both arranged within the through hole; One end of the traction rod (4) far from the wire is exposed outside the through hole, and a cross plate (6) for hinging the connecting rod (302) is arranged at the end of the traction rod (4). A return spring (9) is sleeved on the traction rod (4) between the cross plate (6) and the extension section (102).

2. The novel multifunctional blunt-shaped separating forceps according to claim 1, characterized in that, Two finger ring sleeves (201) are integrally formed on the pliers handles (2).

3. The novel multifunctional blunt-shaped separating forceps according to claim 1, characterized in that, A hanging ring (7) is integrally formed at the end of the guiding section (101).

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