Tong head structure capable of achieving efficient cutting

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a forceps head structure capable of achieving efficient cutting. In order to solve the problem that in the prior art, the shearing efficiency is low, the tong head structure capable of achieving efficient cutting is provided and comprises an outer pipe body and a center rod located in the outer pipe body, one end of the center rod extends out of the outer pipe body, and the end of the outer pipe body is rotationally connected with a tong head assembly; the tong head assembly can be made to be close to or away from the center rod by rotating the tong head assembly, the tong head assembly comprises a movable tong head and a movable tong head installation base, and the end, away from the movable tong head, of the movable tong head installation base is rotationally connected to the outer pipe body. And the movable tong head is rotationally connected with the movable tong head mounting seat through a connecting site and extends along the two ends of the connecting site. In the operation process, the movable forceps head can rotate after making contact with tissue of a patient, so that the movable forceps head is integrally pressed on the tissue of the patient for shearing, the movable forceps head is integrally stressed, one-step shearing is achieved, and the shearing effect is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a clamp head structure capable of realizing efficient cutting. Background Art

[0002] Ultrasonic surgical forceps use ultrasonic energy to separate and cut soft tissues and coagulate and stop bleeding in laparoscopic surgery and open surgery; electrocoagulation forceps use high-frequency current to generate cutting and hemostasis effects through tissue heating, such as bipolar electrocoagulation forceps, monopolar electric hooks, monopolar electric knives, etc. Ultrasonic knives and bipolar electrocoagulation forceps are both commonly used in surgery, and both ultrasonic knives and bipolar electrocoagulation forceps have their own advantages and disadvantages. For example, ultrasonic knives have little thermal damage, but the cutting speed is slow; bipolar electrocoagulation forceps have a fast cutting speed, but will cause certain thermal damage to surrounding tissues, causing pain symptoms, and the instrument has a slightly larger grip force, and the doctor's hands are prone to fatigue after long-term operation. However, the pliers head structure commonly used in ultrasonic knives and bipolar electrocoagulation forceps in the prior art, because its hinge point is located at the end of the pliers head, causes the various parts of the pliers head to be subjected to force gradually during the shearing process of the surgery, which results in low shearing efficiency and uneven force on the pliers head.

[0003] For example, a Chinese invention patent application applies for a bipolar electrocoagulation forceps head [application number: CN202210459145.2]. The invention application includes a first clamp rod, which is integrally connected by an insulating part and a metal clamp rod with a through hole, and the insulating part is coated on the metal clamp rod, and both ends of the metal clamp rod extend beyond the insulating part, and at the same time, the insulating part has a first mounting hole coaxially distributed with the through hole at a position corresponding to the through hole, and the hole wall of the first mounting hole covers the hole wall of the through hole; a second clamp rod, the second clamp rod is a conductor, and the head end of the second clamp rod corresponds to the head end of the metal clamp rod, and the tail end of the second clamp rod is fixed with a first pin shaft, and the first pin shaft is penetrated through the first The insulating fork is connected to the first "U"-shaped slot, and the first end of the insulating fork has a second "U"-shaped slot, and the tail end of the insulating member is located in the groove of the second "U"-shaped slot, and can be respectively defined as an insulating space with the two side walls of the second "U"-shaped slot and the bottom of the second "U"-shaped slot, and the tail end of the metal clamp rod extends into the insulating space.

[0004] This invention application has the advantage of not easily generating space discharge, thereby improving its safety performance and increasing its service life, but it still does not solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a pliers head structure capable of achieving efficient cutting in view of the above problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A clamp head structure capable of achieving efficient cutting comprises an outer tube body and a center rod located in the outer tube body, one end of the center rod extends to the outside of the outer tube body, the end of the outer tube body is rotatably connected to a clamp head assembly, and rotating the clamp head assembly can make the clamp head assembly approach or move away from the center rod, the clamp head assembly comprises a movable clamp head and a movable clamp head mounting seat, the movable clamp head mounting seat is rotatably connected to the outer tube body at one end away from the movable clamp head, the movable clamp head is rotatably connected to the movable clamp head mounting seat via a connection site, and the movable clamp head extends along both ends of the connection site.

[0008] In the above-mentioned clamp head structure capable of achieving efficient cutting, the connection site is located at the midpoint of the movable clamp head.

[0009] In the above-mentioned pliers structure capable of achieving efficient cutting, the connection point is located at the end of the movable pliers mounting seat, one end of the movable pliers is located below the movable pliers mounting seat, and the other end extends to the outside of the movable pliers mounting seat.

[0010] In the above-mentioned pliers structure that can achieve efficient cutting, the movable pliers includes a pliers body, one end of which is retracted inward to form a connecting platform, and the side wall of the connecting platform is penetrated by a connecting hole corresponding to the connecting point, and the connecting platform is located below the movable pliers mounting seat.

[0011] In the above-mentioned pliers structure capable of achieving efficient cutting, the edge of the connecting platform is surrounded by a step surface, and rotating the movable pliers can make the upper surface of the connecting platform abut against the bottom surface of the movable pliers mounting seat or make the step surface abut against the end of the movable pliers mounting seat.

[0012] In the above-mentioned pliers head structure capable of realizing efficient cutting, the movable pliers head further comprises two rows of teeth located at the bottom of the pliers head body.

[0013] In the above-mentioned pliers head structure capable of realizing efficient cutting, the angle between the movable pliers head mounting seat and the center rod is 0 to 75 degrees.

[0014] In the above-mentioned pliers head structure capable of realizing efficient cutting, the angle between the movable pliers head mounting seat and the movable pliers head is -5 to 5 degrees.

[0015] In the above-mentioned forceps head structure capable of realizing efficient cutting, it also includes a tissue pad embedded in the movable forceps head, and the bottom surface of the tissue pad is provided with a serrated structure for anti-slip.

[0016] In the above-mentioned forceps head structure capable of achieving efficient cutting, one end of the tissue pad away from the movable forceps head mounting seat extends outside the movable forceps head.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. The present invention designs the clamp head assembly into two parts: a movable clamp head and a movable clamp head mounting seat, and the movable clamp head can rotate relative to the movable clamp head mounting seat with the middle position as the center. In this way, during the operation, the movable clamp head can rotate after contacting the patient's tissue so that the movable clamp head as a whole is pressed on the patient's tissue for shearing, so that the movable clamp head is subjected to force as a whole, and shearing is performed in one step, which greatly improves the shearing effect.

[0019] 2. The present invention has a simple structure and can be realized by making a minor structural change to the original clamp head structure, and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the movable clamp head;

[0023] In the figure: outer tube body 1, center rod 2, clamp head assembly 3, tissue pad 4, serration structure 5, movable clamp head 31, movable clamp head mounting seat 32, connection point 33, clamp head body 311, step surface 312, connection platform 313, connection hole 314, tooth portion 315. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Combination Figure 1 and Figure 2 As shown, a clamp head structure that can achieve efficient cutting includes an outer tube body 1 and a center rod 2 located in the outer tube body 1, one end of the center rod 2 extends to the outside of the outer tube body 1, and the end of the outer tube body 1 is rotatably connected to a clamp head assembly 3. Rotating the clamp head assembly 3 can make the clamp head assembly 3 approach or move away from the center rod 2. The clamp head assembly 3 includes a movable clamp head 31 and a movable clamp head mounting seat 32. The movable clamp head mounting seat 32 is rotatably connected to the outer tube body 1 at one end away from the movable clamp head 31. The movable clamp head 31 is rotatably connected to the movable clamp head mounting seat 32 through a connecting site 33, and the movable clamp head 31 extends along both ends of the connecting site 33.

[0026] The hinge point of the clamp head structure in the prior art is generally located at the end of the clamp head. In this way, during the surgical shearing of patient tissue, the clamp head structure close to the hinge point first contacts the patient tissue to achieve cutting, and the clamp head structure far from the hinge point may even fail to contact the patient tissue and cut due to the degree of clamp closure operated by medical staff at a single time. This results in that the effective cutting length of a single time is not the entire clamp head length, and the cutting efficiency is low. At the same time, the clamp head is gradually stressed from close to the hinge point to away from the hinge point during the shearing process, resulting in uneven stress. This process is similar to the process of scissors cutting paper, and the paper close to the hinge of the scissors is always cut first. The present invention is provided with a rotatable movable clamp head 31, so that when the patient tissue touches the inner part of the movable clamp head 31, the movable clamp head 31 will rotate along the connection point 33, so that the movable clamp head 31 as a whole contacts the patient tissue to achieve cutting, so that the effective cutting length is the length of the entire movable clamp head 31, thereby ensuring the cutting efficiency and the uniformity of stress. Therefore, the present invention designs the clamp head assembly 3 into two parts, namely, the movable clamp head 31 and the movable clamp head mounting seat 32, and the movable clamp head 31 can rotate relative to the movable clamp head mounting seat 32 with the middle position as the center, so that during the operation, the movable clamp head 31 can rotate after contacting the patient's tissue so that the movable clamp head 31 is pressed on the patient's tissue as a whole for shearing, so that the movable clamp head 31 is subjected to force as a whole, and the shearing is performed in one step, which greatly improves the shearing effect. At the same time, the present invention has a simple structure and can be realized by making a small structural change on the original clamp head structure, and the production cost is low.

[0027] When the present invention is used, the medical staff operates the movable clamp head mounting seat 32 to rotate away from the center rod 2, that is, the clamp head is opened to prepare for clamping and cutting the patient's tissue. The angle formed between the movable clamp head mounting seat 32 and the center rod 2 ranges from 0 to 75 degrees. The movable clamp head mounting seat 32 is then rotated to move closer to the center rod 2. At this time, the inner end of the movable clamp head 31, that is, the end close to the outer tube body 1, first contacts the patient's tissue, but at the same time, the movable clamp head 31 can rotate relative to the movable clamp head mounting seat 32 along the connection site 33 as the center, so that the movable clamp head 31 is pressed on the patient's tissue as a whole for shearing. The angle formed between the movable clamp head mounting seat 32 and the movable clamp head 31 ranges from -5 to 5 degrees.

[0028] Preferably, the connection point 33 is located at the midpoint of the movable clamp head 31. This can further ensure the uniformity of force.

[0029] Combination Figure 1 and Figure 3As shown, the connection point 33 is located at the end of the movable clamp head mounting seat 32, one end of the movable clamp head 31 is located below the movable clamp head mounting seat 32, and the other end extends to the outside of the movable clamp head mounting seat 32. Preferably, the movable clamp head 31 basically covers the entire area of ​​the bottom of the movable clamp head mounting seat 32, so as to ensure that the effective cutting length is as long as possible and the cutting efficiency is high.

[0030] Specifically, the movable clamp head 31 includes a clamp head body 311, one end of which is contracted inward to form a connection platform 313, and a connection hole 314 corresponding to the connection position 33 is formed through the side wall of the connection platform 313, and the connection platform 313 is located below the movable clamp head mounting seat 32. The edge of the connection platform 313 is surrounded by a step surface 312, and the movable clamp head 31 can be rotated to make the upper surface of the connection platform 313 abut against the bottom surface of the movable clamp head mounting seat 32 or the step surface 312 abut against the end of the movable clamp head mounting seat 32.

[0031] The movable clamp head 31 is designed to swing within a relatively small angle range relative to the movable clamp head mounting seat 32, that is, the above-mentioned -5 to 5 degrees. The maximum swing amplitude of both sides is achieved on one side by the step surface 312 abutting against the end of the movable clamp head mounting seat 32, and on the other side by the upper surface of the connecting platform 313 abutting against the bottom surface of the movable clamp head mounting seat 32. The limit is realized simply and conveniently by using this structure, without the need for an additional limit structure, and the clamp head structure is simplified.

[0032] like Figure 3 As shown, the movable clamp head 31 further includes two rows of teeth 315 located at the bottom of the clamp head body 311 .

[0033] like Figure 2 As shown, the present invention also includes a tissue pad 4 embedded in the movable forceps head 31, and the bottom surface of the tissue pad 4 is provided with a serrated structure 5 for anti-slip. The tissue pad 4 can be made of polytetrafluoroethylene or silicone material, which can be used to protect the patient's tissue from excessive thermal damage. The serrated structure 5 can prevent slipping.

[0034] Preferably, one end of the tissue pad 4 away from the movable clamp head mounting seat 32 extends outside the movable clamp head 31. This can expand the scope of protecting the patient's tissue from excessive thermal damage.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0036] Although the terms such as outer tube body 1, center rod 2, clamp head assembly 3, tissue pad 4, serration structure 5, movable clamp head 31, movable clamp head mounting seat 32, connection site 33, clamp head body 311, step surface 312, connection platform 313, connection hole 314, tooth portion 315 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A clamp head structure capable of achieving efficient cutting, comprising an outer tube body (1) and a center rod (2) located in the outer tube body (1), one end of the center rod (2) extending to the outside of the outer tube body (1), and a clamp head assembly (3) rotatably connected to the end of the outer tube body (1), and the clamp head assembly (3) can be rotated to make the clamp head assembly (3) approach or move away from the center rod (2), characterized in that: The pliers assembly (3) comprises a movable pliers (31) and a movable pliers mounting seat (32); one end of the movable pliers mounting seat (32) away from the movable pliers (31) is rotatably connected to the outer tube body (1); the movable pliers (31) is rotatably connected to the movable pliers mounting seat (32) via a connection point (33), and the movable pliers (31) extends along both ends of the connection point (33).

2. A pliers head structure capable of achieving efficient cutting as claimed in claim 1, characterized in that: The connection site (33) is located at the midpoint of the movable clamp head (31).

3. A pliers head structure capable of achieving efficient cutting as claimed in claim 2, characterized in that: The connection point (33) is located at the end of the movable clamp head mounting seat (32), one end of the movable clamp head (31) is located below the movable clamp head mounting seat (32), and the other end extends to the outside of the movable clamp head mounting seat (32).

4. A pliers head structure capable of achieving efficient cutting as claimed in claim 3, characterized in that: The movable clamp head (31) comprises a clamp head body (311), one end of which is contracted inwardly to form a connecting platform (313), a connecting hole (314) corresponding to the connecting site (33) passing through the side wall of the connecting platform (313), and the connecting platform (313) is located below the movable clamp head mounting seat (32).

5. A pliers head structure capable of achieving efficient cutting as claimed in claim 4, characterized in that: The edge of the connecting platform (313) is surrounded by a step surface (312), and the movable clamp head (31) can be rotated to make the upper surface of the connecting platform (313) abut against the bottom surface of the movable clamp head mounting seat (32) or the step surface (312) abut against the end of the movable clamp head mounting seat (32).

6. A pliers head structure capable of achieving efficient cutting as claimed in claim 4, characterized in that: The movable pliers head (31) further comprises two rows of teeth (315) located at the bottom of the pliers head body (311).

7. A pliers head structure capable of achieving efficient cutting as claimed in claim 1, characterized in that: The included angle between the movable clamp head mounting seat (32) and the central rod (2) is 0 to 75 degrees.

8. A pliers head structure capable of achieving efficient cutting as claimed in claim 1, characterized in that: The included angle between the movable clamp head mounting seat (32) and the movable clamp head (31) is -5 to 5 degrees.

9. A pliers head structure capable of achieving efficient cutting as claimed in claim 1, characterized in that: It also comprises a tissue pad (4) embedded in the movable forceps head (31), and the bottom surface of the tissue pad (4) is provided with a sawtooth structure (5) for preventing slipping.

10. A pliers head structure capable of achieving efficient cutting as claimed in claim 9, characterized in that: One end of the tissue pad (4) away from the movable clamp head mounting seat (32) extends to the outside of the movable clamp head (31).

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