Smoke exhaust assembly for surgical knife and surgical knife
By designing smoke exhaust components for surgical tools, the problem of surgical smoke affecting the vision and health of the surgical field, achieving timely absorption of smoke and improving surgical efficiency.
Patent Information
- Application Number
- CN202421774560.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-25
AI Technical Summary
During the operation, when using an ultrasonic knife or other energy device, surgical smoke is easily generated, which affects the field of vision and the process of surgery, and poses a threat to the health of the surgeon. Traditional smoke exhaust devices cannot effectively absorb smoke, especially in laparoscopic surgery in tight spaces or low locations.
A smoke exhaust assembly for surgical tools is designed, including a tee joint, a smoke exhaust pipe, a clamping sleeve and a switch valve body. A smoking hole is opened at one end of the smoke exhaust pipe away from the cutting head, and the clamping sleeve is tightened by a nut, and the switch valve body allows the smoke exhaust to be controlled without interrupting the operation.
It achieves timely and comprehensive absorption of surgical smoke, maintains clear vision of the surgical field, reduces the impact on the operating room environment, and improves the safety and efficiency of the operation.
Smart Images
Figure CN222983424U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and relates to a smoke exhaust component for a surgical knife and a surgical knife. Background Art
[0002] With the development of medical technology and the progress of medical standards, energy instrument devices such as ultrasonic knives and electrocoagulation have been increasingly widely used in clinical practice. For example, a high-frequency electrosurgical knife heats tissues by generating high-frequency high-voltage current at the electrode tip when contacting the body, achieving the separation and coagulation of body tissues, thereby serving the purpose of cutting and hemostasis. However, when using an ultrasonic knife or other energy instruments to cut human tissues, surgical smoke is easily generated, which carries a large number of harmful substances. It not only affects the surgical field of view and hinders the surgical process, but also causes serious damage to the body if the surgeon inhales the surgical smoke for a long time.
[0003] Therefore, in current actual clinical techniques, when a doctor uses an ultrasonic knife or other energy instruments, an assistant needs to use a smoke exhaust device such as a smoking tube to absorb the surgical smoke. However, such an operation can only absorb the smoke on one side of the knife head, can only absorb a small amount of smoke, and since it is a two-person operation, the movements are difficult to synchronize. In addition, in endoscopic surgeries at low positions, ultra-low positions, and narrow spaces in clinical practice, traditional suction devices and conventional smoke exhaust instruments are often restricted by structural space and other factors. The distance between the smoking position and the smoke generation position is relatively far, and the surgical smoke cannot be effectively attracted. Summary of the Utility Model
[0004] The purpose of the utility model is to address the above problems existing in the prior art and propose a smoke exhaust component for a surgical knife and a surgical knife.
[0005] The purpose of the utility model can be achieved by the following technical solutions: A smoke exhaust component for a surgical knife, comprising:
[0006] A tee joint, the tee joint includes a first connection port, a second connection port, and a third connection port, and the first connection port, the second connection port, and the third connection port are in communication with each other;
[0007] A smoke exhaust pipe, the smoke exhaust pipe is connected to the first connection port;
[0008] A clamping sleeve, the clamping sleeve is connected to the second connection port, and the clamping sleeve is connected with a nut that can tighten the clamping sleeve.
[0009] Preferably, it further includes a switch valve body, and the switch valve body is connected to the third connection port.
[0010] Preferably, a valve core is installed in the switch valve body, and the valve core is connected with a switch handle.
[0011] Preferably, at least one smoking hole is formed on a peripheral wall of one end of the smoke exhaust pipe away from the first connecting port.
[0012] Preferably, the inner wall surface of the smoke exhaust pipe is provided with a plurality of inwardly protruding anti-contact protrusions along its circumference.
[0013] Preferably, a sealing cap is installed in the second connecting port.
[0014] Preferably, the first connection port and the second connection port are coaxially arranged.
[0015] Preferably, the outer circumferential surface of the clamping sleeve is provided with a force-bearing inclined surface, and the inner circumferential surface of the nut is provided with an extrusion inclined surface, and the force-bearing inclined surface is in contact with the extrusion inclined surface.
[0016] A surgical tool is also provided, comprising the smoke exhaust assembly and a knife rod, wherein the three-way joint, the smoke exhaust pipe and the clamping sleeve of the smoke exhaust assembly are all sleeved on the knife rod, and the smoke exhaust pipe extends to the head of the knife rod, and there is a gap between the smoke exhaust pipe and the knife rod for smoke to enter the three-way joint, and the clamping sleeve tightly holds the knife rod.
[0017] Preferably, the surgical knife is an ultrasonic knife or a high-frequency electric knife.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] 1. A smoke exhaust component that can be installed on an ultrasonic knife or a high-frequency electric knife is provided. The third connection port is connected to a negative pressure source (such as a smoke exhaust type pneumoperitoneum machine or a negative pressure aspirator), so that the smoke exhaust pipe absorbs the smoke generated by the operation of the knife head. The smoke enters the three-way joint and is led out from the third connection port, thereby keeping the doctor's vision clear and realizing timely and comprehensive absorption of the smoke.
[0020] 2. The negative pressure source is connected to the switch valve body through a catheter, and the switch valve body can determine the on-off connection between the third connection port and the catheter. The advantage of this design is that through the switch valve body, the user can control the start and stop of smoke exhaust according to actual needs without interrupting the operation. Therefore, when replacing the surgical tool, the smoke exhaust channel can be cut off by closing the switch valve body, and then the catheter can be unplugged and inserted into the third connection port of the new surgical tool.
[0021] 3. The end of the smoke exhaust pipe away from the first connection port is actually the end close to the cutting head. A plurality of smoking holes are provided at this end to help smoke enter the smoke exhaust pipe and improve the smoke absorption efficiency. Moreover, since the smoking holes are close to the cutting head, the smoke generated by the scalpel cutting the tissue can be captured at the first time, reducing the time the smoke stays in the surgical area, thereby purifying the surgical field faster and improving the visibility of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the internal structure of the smoke exhaust component of the present utility model.
[0023] Figure 2 This is a schematic diagram of the smoke exhaust component of the present utility model.
[0024] Figure 3 This is a schematic cross-sectional view of the smoke exhaust pipe of the present utility model.
[0025] Figure 4 This is a schematic diagram when the smoke exhaust component of the present utility model is sleeved on a surgical tool.
[0026] In the figure, 100 is a tee joint; 110 is a first connection port; 120 is a second connection port; 130 is a third connection port; 140 is a sealing cap; 200 is a smoke exhaust pipe; 210 is a smoking hole; 220 is an anti-contact bump; 300 is a clamping sleeve; 310 is a force-receiving inclined surface; 400 is a nut; 410 is an extrusion inclined surface; 500 is a switch valve body; 510 is a valve core; 520 is a switch handle; 600 is a tool shank. Specific embodiments
[0027] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.
[0028] As Figures 1-4 shown, a smoke exhaust component for a surgical tool includes: a tee joint 100, the tee joint 100 includes a first connection port 110, a second connection port 120, and a third connection port 130, and the first connection port 110, the second connection port 120, and the third connection port 130 communicate with each other; a smoke exhaust pipe 200, the smoke exhaust pipe 200 is connected to the first connection port 110; a clamping sleeve 300, the clamping sleeve 300 is connected to the second connection port 120, and the clamping sleeve 300 is connected with a nut 400 that can tighten the clamping sleeve 300.
[0029] The core of the smoke exhaust component is a tee joint 100. The tee joint 100 has three interfaces. Among them, the first connection port 110 is connected to the smoke exhaust pipe 200, the second connection port 120 cooperates with the clamping sleeve 300, and the third connection port 130 is used to connect to an external negative pressure source (such as a smoke exhaust type pneumoperitoneum machine or a negative pressure aspirator). The smoke exhaust pipe 200 can be sleeved on the tool bar 600 and its front end extends to the head of the tool bar 600. Therefore, during the operation, the smoke exhaust pipe 200 can move synchronously with the tool bar 600, so that the smoke generated during the operation of the tool head can be absorbed in a timely and comprehensive manner. The clamping sleeve 300 can be sleeved on the end of the tool bar 600, and the clamping sleeve 300 can be tightened by the nut 400 to hold the tool bar 600, ensuring that the smoke exhaust component is fixed to the tool bar 600. Since the third connection port 130 is connected to the negative pressure source, a negative pressure environment is formed. This continuous negative pressure can pull the smoke, so that the smoke is sucked into the smoke exhaust pipe 200 from the tool head position, then enters the tee joint 100 through the first connection port 110, and then is extracted by the negative pressure source from the third connection port 130, realizing the continuous and efficient discharge of the smoke.
[0030] The smoke exhaust component simplifies the steps of manually operating the smoke suction pipe in traditional surgeries, reduces the burden on operating room personnel, and improves the surgical efficiency. Since the entire smoke exhaust component is designed to be close to the tool, it can be closer to the smoke source and absorb smoke from multiple directions, ensuring the timeliness and comprehensiveness of smoke absorption, thus maintaining a clear surgical field of view, reducing the impact on the operating room environment, and improving the safety and comfort of the surgery.
[0031] As Figures 1-4 shown, on the basis of the above-mentioned embodiment, it further includes a switch valve body 500, and the switch valve body 500 is connected to the third connection port 130.
[0032] In the actual structure, the negative pressure source is connected to the switch valve body 500 through a catheter, and the switch valve body 500 can determine the on-off between the third connection port 130 and the catheter. The advantage of this design is that through the switch valve body 500, the user can control the start and stop of smoke exhaust according to actual needs without interrupting the surgery. Therefore, when replacing the surgical tool, the smoke exhaust channel can be cut off by closing the switch valve body 500, then the catheter can be unplugged and inserted into the third connection port 130 of the new surgical tool.
[0033] In addition, in case of an emergency, such as a failure of the negative pressure source or the need to immediately stop the smoke exhaust process, the switch valve body 500 can quickly cut off the smoke exhaust path, with a more rapid and flexible response.
[0034] Further, a valve core 510 is installed inside the switch valve body 500, and the valve core 510 is connected to a switch handle 520. By rotating the switch handle 520, the operator can change the position of the valve core 510, thereby controlling the opening and closing state of the valve body. This method is direct and efficient, enabling the user to adjust the smoke exhaust state immediately according to the actual situation.
[0035] As Figures 1-2 shown, on the basis of the above-described embodiment, at least one smoking hole 210 is provided in the peripheral wall of the end of the smoke exhaust pipe 200 remote from the first connection port 110.
[0036] The end of the smoke exhaust pipe 200 remote from the first connection port 110 is actually the end close to the tool head. Providing a plurality of smoking holes 210 at this end helps the smoke to enter the smoke exhaust pipe 200 and improves the smoke absorption efficiency. Moreover, since the smoking holes 210 are close to the tool head, the smoke generated by the surgical knife cutting tissue can be captured in the first time, reducing the time for the smoke to stay in the surgical area, thereby purifying the surgical field of view faster and improving the visibility of the surgery.
[0037] As Figures 3-4 shown, on the basis of the above-described embodiment, a plurality of inwardly protruding anti-contact bumps 220 are provided on the inner wall surface of the smoke exhaust pipe 200 along its circumferential direction. The function of these anti-contact bumps 220 is to keep a gap for the smoke to pass between the smoke exhaust pipe 200 and the tool rod 600. Specifically, the anti-contact bumps 220 contact the outer surface of the tool rod 600, thereby preventing the inner wall surface of the smoke exhaust pipe 200 from contacting the outer surface of the tool rod 600 and retaining the necessary gap.
[0038] As Figure 1 shown, on the basis of the above-described embodiment, a sealing cap 140 is installed in the second connection port 120. The sealing cap 140 is used to fit with the surface of the tool rod 600 to form a sealing interface, strengthening the sealing between the smoke exhaust assembly and the tool rod 600 and ensuring that the smoke does not leak out from the second connection port 120.
[0039] On the basis of the above-described embodiment, the first connection port 110 and the second connection port 120 are coaxially arranged. Such a design allows the tool rod 600 to be directly inserted from the second connection port 120, continue to pass through the first connection port 110, and then pass through the smoke exhaust pipe 200. This simplifies the assembly steps of the surgical tool and the smoke exhaust assembly and simplifies the assembly process.
[0040] As Figure 1 shown, on the basis of the above-described embodiment, a force-receiving inclined surface 310 is provided on the outer peripheral surface of the clamping sleeve 300, and an extrusion inclined surface 410 is provided on the inner peripheral surface of the nut 400, and the force-receiving inclined surface 310 contacts the extrusion inclined surface 410.
[0041] When the nut 400 is loosened, the knife bar 600 can pass through the clamping sleeve 300. When the nut 400 is tightened, the inclined surface will generate an inward extrusion force, which will gradually increase with the degree of tightening, so that the clamping sleeve 300 is fastened to the knife bar 600. This inclined surface contact design allows the operator to quickly adjust the tightness of the clamping sleeve 300 by simply rotating the nut 400 according to actual needs, thereby achieving the effect of quick loading and unloading.
[0042] like Figures 1-4 As shown, a surgical tool includes a smoke exhaust component and a knife rod 600. The three-way joint 100, the smoke exhaust pipe 200 and the clamping sleeve 300 of the smoke exhaust component are all sleeved on the knife rod 600, and the smoke exhaust pipe 200 extends to the head of the knife rod 600. There is a gap between the smoke exhaust pipe 200 and the knife rod 600 for smoke to enter the three-way joint 100, and the clamping sleeve 300 holds the knife rod 600 tightly.
[0043] The smoke exhaust assembly is detachably connected to the knife rod 600. The third connection port 130 of the smoke exhaust assembly needs to be connected to an external negative pressure source to form a smoke exhaust system. The three-way connector 100, the smoke exhaust pipe 200, and the clamping sleeve 300 are all mounted on the knife rod 600. This design ensures the seamless integration of the smoke exhaust system and the surgical tool without occupying additional surgical space, while maintaining the portability and flexibility of the surgical tool. The smoke exhaust pipe 200 specifically extends to the head of the knife rod 600, i.e., the front end of the surgical tool, where the most smoke is generated. This layout ensures that the smoke can be captured in the first place, reducing pollution in the surgical area.
[0044] In addition, the clamping sleeve 300 is not only mounted on the knife rod 600, but also has a tightening mechanism designed therein, such as a nut 400 and a force-bearing inclined surface 310 and an extrusion inclined surface 410, thereby ensuring the tightness and stability of the fastening, avoiding smoke leakage, and allowing the surgical knife and the smoke exhaust component to be firmly combined and not fall off during surgery.
[0045] Preferably, the surgical knife is an ultrasonic knife or a high-frequency electric knife. These two types of surgical knives are extremely common in modern medical operations and are widely used due to their unique advantages. Combined with the innovative design of the smoke exhaust component, these two types of knives can not only play a cutting and hemostatic effect during surgery, but also effectively solve the accompanying smoke problem, improve the quality of the operating room environment, ensure the clarity and efficiency of surgical operations, and reduce potential health effects on doctors and medical staff. It is an important advancement in surgical technology.
[0046] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0047] In addition, in the present utility model, descriptions such as "first", "second", and "one" are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0048] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0049] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
Claims
1. A smoke exhaust assembly for a surgical tool, characterized in that: include: A three-way connector (100), the three-way connector (100) comprising a first connection port (110), a second connection port (120) and a third connection port (130), the first connection port (110), the second connection port (120) and the third connection port (130) being connected to each other; a smoke exhaust pipe (200), the smoke exhaust pipe (200) being connected to the first connecting port (110); A clamping sleeve (300), the clamping sleeve (300) is connected to the second connection port (120), and the clamping sleeve (300) is connected to a nut (400) that can tighten the clamping sleeve (300).
2. A smoke exhaust assembly for a surgical tool as claimed in claim 1, characterized in that: It also includes a switch valve body (500), wherein the switch valve body (500) is connected to the third connection port (130).
3. A smoke exhaust assembly for a surgical tool as claimed in claim 2, characterized in that: A valve core (510) is installed in the switch valve body (500), and the valve core (510) is connected to a switch handle (520).
4. A smoke exhaust assembly for a surgical tool as claimed in claim 1, characterized in that: At least one smoking hole (210) is provided on the peripheral wall of the smoke exhaust pipe (200) at one end away from the first connecting port (110).
5. A smoke exhaust assembly for a surgical tool as claimed in claim 1, characterized in that: The inner wall surface of the smoke exhaust pipe (200) is provided with a plurality of inwardly protruding anti-contact protrusions (220) along its circumference.
6. A smoke exhaust assembly for a surgical tool as claimed in claim 1, characterized in that: A sealing cap (140) is installed in the second connecting port (120).
7. A smoke exhaust assembly for a surgical tool as claimed in claim 1, characterized in that: The first connection port (110) and the second connection port (120) are coaxially arranged.
8. A smoke exhaust assembly for a surgical tool as claimed in claim 1, characterized in that: The outer circumferential surface of the clamping sleeve (300) is provided with a force-bearing inclined surface (310), and the inner circumferential surface of the nut (400) is provided with an extrusion inclined surface (410), and the force-bearing inclined surface (310) is in contact with the extrusion inclined surface (410).
9. A surgical knife, characterized in that: The smoke exhaust assembly comprises a smoke exhaust component as described in any one of claims 1 to 8, and further comprises a knife rod (600), wherein the three-way joint (100), the smoke exhaust pipe (200) and the clamping sleeve (300) of the smoke exhaust assembly are all sleeved on the knife rod (600), and the smoke exhaust pipe (200) extends to the head of the knife rod (600), and there is a gap between the smoke exhaust pipe (200) and the knife rod (600) for smoke to enter the three-way joint (100), and the clamping sleeve (300) tightly holds the knife rod (600).
10. A surgical tool according to claim 9, characterized in that: The surgical knife is an ultrasonic knife or a high-frequency electric knife.