CN114010278A - Puncture outfit with double-channel gas circuit of control valve - Google Patents

Abstract

The invention provides a puncture outfit with a double-channel gas path of a control valve, belonging to the technical field of puncture outfits and comprising: the puncture outfit body is provided with a gas injection channel and a smoke exhaust channel; the valve seat is connected with the puncture outfit body and is provided with a first gas injection hole, a second gas injection hole, a first smoke exhaust hole and a second smoke exhaust hole, the first gas injection hole is communicated with the gas injection channel, and the first smoke exhaust hole is communicated with the smoke exhaust channel; the valve core is rotatably arranged in the valve seat and provided with a gas injection connecting hole and a smoke exhaust connecting hole, and the valve core can rotate to an opening position or a closing position. The invention has the beneficial effects that: the puncture outfit is also provided with a control valve on the basis of gas injection and smoke exhaust, so that the puncture outfit can control the switch of the gas injection and smoke exhaust channel, and the pneumoperitoneum can be smoothly established and maintained when the dual-channel puncture outfit is used in the operation process.

Description

Puncture outfit with double-channel gas circuit of control valve

Technical Field

The invention belongs to the technical field of puncture outfits, and relates to a puncture outfit with a double-channel air passage and a control valve.

Background

The puncture outfit can be used in various minimally invasive surgical operations, is used for a doctor to puncture the abdominal cavity in a laparoscopic operation and convey gas into the abdominal cavity so as to establish pneumoperitoneum, and can be used as a passage for an endoscope and a surgical instrument to enter and exit the abdominal cavity from the outside.

A utility model with publication number CN213722310U discloses a puncture outfit with air inlet and outlet structure, which comprises an inner sleeve exhaust hole arranged on the outer wall of an inner sleeve; the outer wall of the outer sleeve is provided with a first pipe body and a second pipe body, the outer wall of the outer sleeve is provided with an outer sleeve exhaust hole and an outer sleeve air inlet hole, the outer sleeve is sleeved outside the inner sleeve, so that an air inlet channel is formed between the outer sleeve and the inner sleeve, and an exhaust channel is formed in the inner sleeve; the separator comprises a substrate, a third pipe body and a fourth pipe body, a separator air inlet and a separator air outlet are formed in the substrate, the separator is inserted into the outer sleeve, so that the fourth pipe body is sleeved on the second pipe body, and the third pipe body is sleeved on the first pipe body; the first sealing element and the second sealing element are sleeved between the inner sleeve and the outer sleeve so as to separate the air inlet channel from the exhaust channel, so that the air inlet and exhaust effects are met, and the pressure stabilizing effect is achieved.

When the high-frequency electric knife is used for contacting with the tissues and organs of the human body in the surgical operation, smoke is generated to block the operation visual field of a doctor, the prior art is to additionally open an additional wound on the human body, for the emission of smoke gases or the connection of smoke evacuation devices, this arrangement has the disadvantage that the emitted gases pollute the environment, or one more wound is added to the patient when more instruments are used, and the operation burden is increased in the operation process, which is very inconvenient, the puncture outfit in the comparison document integrates two channels of gas injection and smoke exhaust on a puncture outfit with mutually independent double channels, that is, the puncture outfit with the double channels can perform smoke exhaust while injecting gas, the above-mentioned drawbacks can be well overcome, but the puncture outfit in the reference document cannot control the switch of the smoke evacuation and gas injection channel by itself, which causes a new problem: in the process of the exchange operation, if the puncture outfit cannot control the switch of the air passage of the puncture outfit, the gas in the pneumoperitoneum leaks from the open puncture outfit in the exchange process, so that the pneumoperitoneum cannot be kept, and the subsequent operation cannot be performed. In addition, the air injection drift diameter of the puncture outfit on the market is smaller at present, which is often the bottleneck of the air injection flow in the whole system, and for maintaining the stable condition of the pneumoperitoneum, the larger air injection flow can be quicker and more stable when the stability of the pneumoperitoneum is adjusted. Therefore, there is a large room for improvement against the above problems.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a puncture outfit with a control valve and a double-channel air passage.

The purpose of the invention can be realized by the following technical scheme: a puncture instrument having a dual path air passage with a control valve, comprising:

the puncture outfit body is provided with a gas injection channel and a smoke exhaust channel;

the valve seat is connected with the puncture outfit body and is provided with a first gas injection hole, a second gas injection hole, a first smoke exhaust hole and a second smoke exhaust hole, the first gas injection hole is communicated with the gas injection channel, and the first smoke exhaust hole is communicated with the smoke exhaust channel;

the case, its rotatable setting is in the disk seat, the case is provided with the gas injection connecting hole and the connecting hole of discharging fume, the case is rotatable to open the position or closed position, works as the case is located when opening the position, the second gas injection hole passes through the gas injection connecting hole with first gas injection hole intercommunication, the second discharge fume hole passes through the connecting hole of discharging fume with first discharge fume hole intercommunication, works as the case is located when closing the position, the second gas injection hole with first gas injection hole is isolated, the second discharge fume hole with first discharge fume hole is isolated.

Preferably, the number of the first gas injection holes, the number of the second gas injection holes and the number of the gas injection connecting holes are at least two, and the first gas injection holes and the second gas injection connecting holes are arranged in a one-to-one correspondence manner, the valve seat is further provided with a first gas inlet cavity and a second gas inlet cavity, each first gas injection hole is communicated with the first gas inlet cavity, the first gas inlet cavity is communicated with the gas inlet channel, and each second gas injection hole is communicated with the second gas inlet cavity.

Preferably, the valve seat is connected with a joint assembly, the joint assembly is provided with an air inlet joint and a smoke exhaust joint, the second air inlet cavity is communicated with the air inlet joint, and the second smoke exhaust hole is communicated with the smoke exhaust joint.

Preferably, the joint assembly comprises a joint seat and a joint knob, the joint seat is connected with the valve seat, the joint knob is fixedly connected with the joint seat, and the air inlet joint and the smoke exhaust joint are both arranged on the joint knob.

Preferably, the joint seat is in threaded connection with the valve seat, the joint seat is provided with an air injection column and a smoke exhaust column, the smoke exhaust column is located in the air injection column and concentrically arranged with the air injection column, the second smoke exhaust hole is located in the second air inlet cavity and concentrically arranged with the second air inlet cavity, when the joint seat is screwed with the valve seat, the smoke exhaust column is inserted into the second smoke exhaust hole, and the air injection column is inserted into the second air inlet cavity.

Preferably, the joint base is provided with a gas transition cavity and a smoke transition cavity, the gas transition cavity is communicated with the second gas inlet cavity, the smoke transition cavity is communicated with the second smoke exhaust hole, the gas inlet joint is communicated with the gas transition cavity, and the smoke exhaust joint is communicated with the smoke transition cavity.

Preferably, an end surface cavity is formed between the joint seat and the joint knob, a partition plate is arranged in the end surface cavity, and the partition plate partitions the end surface cavity to form the gas transition cavity and the smoke transition cavity.

Preferably, the first smoke exhaust holes are located between the first air injection holes, and the second smoke exhaust holes are located between the second air injection holes.

Preferably, the puncture outfit body comprises a bottom shell and an inner sleeve, the valve seat is connected with the bottom shell, the inner sleeve penetrates through the bottom shell, the gas injection channel is located between the bottom shell and the inner sleeve, and the smoke exhaust channel is arranged in the inner sleeve.

Preferably, the bottom shell is provided with a gas inlet cavity, a smoke outlet cavity and a gas outlet, the gas injection channel is communicated with the first gas inlet cavity through the gas inlet cavity, the gas injection channel is communicated with a human body through the gas outlet, and the smoke exhaust channel is communicated with the first smoke exhaust hole through the smoke outlet cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. this puncture ware still is provided with the control valve on the basis that can the gas injection can discharge fume again for puncture ware self just can control the switch of gas injection and exhaust fume channel, when gas injection pipe on the pneumoperitoneum machine exchanges other puncture wares from a puncture ware in the operation process, also can guarantee not to take place gas leakage, thereby guarantee the normal clear of operation, very big increase the practicality, in addition, novelty ground can pass through a valve, the switch of simultaneous control gas injection and discharge fume, greatly increased the convenience of using.

2. The control valve is provided with at least two gas injection holes, and the double-gas-path channel switch can be controlled, the structural strength of the control valve is guaranteed, and meanwhile, large-flow gas injection is guaranteed.

3. The connector assembly comprises a connector seat and a connector knob, and compared with an integrally formed air pipe connector, the connector assembly of the puncture outfit is convenient for mold injection molding and has high precision of a molded product.

4. The joint assembly is provided with a threaded hole, the valve seat is provided with a plurality of threaded connectors, the threaded connectors are connected with the threaded hole, the connector seat and the valve seat are tightly abutted to seal through threaded screwing between the connector seat and the valve seat, the sealing mode is very convenient and ingenious, and the structure is simple and reliable.

5. The joint knob is provided with a partition plate, so that gas injection and smoke exhaust gas path channels can be separated while the joint seat and the joint knob are fixedly connected, and the design is very simple and ingenious.

6. The gas injection holes on the valve seat are distributed in a ring shape and surround the smoke exhaust hole, so that the injection amount of gas can be increased, and the large-flow injection of the gas is realized.

7. Be provided with a plurality of gas outlets on the drain pan for gas can enter into human body fast, thereby establishes the pneumoperitoneum fast.

Drawings

Fig. 1 is a cross-sectional view of the puncture instrument of the present invention with the puncture needle removed.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic view of the entire structure of the puncture instrument of the present invention.

Fig. 4 is a schematic structural view of the puncture outfit of the invention with the puncture needle removed.

Fig. 5 is a cross-sectional view of the cartridge and seat of the present invention after detonation.

Fig. 6 is an isometric view of the valve core and valve seat of the present invention after detonation.

Fig. 7 is an isometric view of the adapter of the present invention.

FIG. 8 is an isometric view of a connector knob of the present invention.

Fig. 9 is an isometric view of the bottom housing of the present invention.

In the figure, 100, the puncture outfit body; 110. a gas injection channel; 120. a smoke evacuation channel; 130. a bottom case; 131. a gas introduction chamber; 132. a smoke outlet cavity; 133. an air outlet; 140. an inner sleeve; 200. a valve seat; 210. a first gas injection hole; 220. a second gas injection hole; 230. a first smoke discharge hole; 240. a second smoke exhaust hole; 250. a first air intake chamber; 260. a second air intake chamber; 270. a convex surface; 280. a threaded connector; 300. a valve core; 310. gas injection connecting holes; 320. a smoke exhaust connecting hole; 330. a mating groove; 410. a joint base; 411. injecting a gas column; 412. a smoke discharging column; 413. a gas transition chamber; 414. a smoke transition chamber; 415. a positioning column; 420. a connector knob; 421. an air inlet joint; 422. a smoke evacuation connector; 423. positioning holes; 430. an end face cavity; 431. a partition plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3, 4 and 5, a puncture instrument with a dual-channel air passage having a control valve is characterized by comprising: a puncture instrument body 100 provided with a gas injection passage 110 and a smoke evacuation passage 120;

a valve seat 200 connected to the puncture outfit body 100, wherein the valve seat 200 is provided with a first gas injection hole 210, a second gas injection hole 220, a first smoke discharge hole 230 and a second smoke discharge hole 240, the first gas injection hole 210 is communicated with the gas injection channel 110, and the first smoke discharge hole 230 is communicated with the smoke discharge channel 120;

the valve element 300 is rotatably disposed in the valve seat 200, the valve element 300 is provided with an air injection connecting hole 310 and a smoke exhaust connecting hole 320, the valve element 300 can be rotated to an open position or a closed position, when the valve element 300 is located at the open position, the second air injection hole 220 is communicated with the first air injection hole 210 through the air injection connecting hole 310, the second smoke exhaust hole 240 is communicated with the first smoke exhaust hole 230 through the smoke exhaust connecting hole 320, when the valve element 300 is located at the closed position, the second air injection hole 220 is isolated from the first air injection hole 210, and the second smoke exhaust hole 240 is isolated from the first smoke exhaust hole 230.

Preferably, the valve seat 200 and the puncture device body 100 are sealed by glue connection in this embodiment, and other connection methods such as ultrasonic welding and the like which can produce equivalent effects are also within the protection scope of the present invention.

In the actual structure, as shown in fig. 5, the valve element 300 is provided with a matching groove 330, the valve seat 200 is provided with a raised surface 270, and after the valve element 300 is pressed into the valve seat 200 during assembly, the raised surface 270 is just positioned in the matching groove 330, so that the connection mode can ensure that the valve element 300 cannot fall out of the valve seat 200 and the valve element 300 can also rotate in the valve seat 200.

Preferably, the valve seat 200 and the valve core 300 are in interference fit, so that the valve seat 200 and the valve core 300 are sealed, and gas cannot leak from the fit between the valve seat 200 and the valve core 300 during gas injection.

In practical use, as shown in fig. 2, when the valve core 300 is located at the open position, the gas injection passage 110, the first gas injection hole 210, the gas injection connecting hole 310 and the second gas injection hole 220 are sequentially communicated, and the smoke evacuation passage 120, the first smoke evacuation hole 230, the smoke evacuation connecting hole 320 and the second smoke evacuation hole 240 are sequentially communicated.

At this time, the pneumoperitoneum machine can inject gas into the human body sequentially through the second gas injection hole 220, the gas injection connecting hole 310, the first gas injection hole 210 and the gas injection channel 110, and smoke generated in the human body can be discharged out of the body sequentially through the smoke exhaust channel 120, the first smoke exhaust hole 230, the smoke exhaust connecting hole 320 and the second smoke exhaust hole 240, so that the puncture outfit can realize gas injection and smoke exhaust.

When the valve core 300 is in the closed position, as shown in fig. 5 and 6, the cylindrical surfaces of the valve core 300 without openings are located at the first gas injection hole 210 and the second gas injection hole 220, so that the valve core 300 blocks the communication between the first gas injection hole 210 and the second gas injection hole 220 and between the first smoke exhaust hole 230 and the second smoke exhaust hole 240, and the smoke exhaust and gas injection channels are closed.

That is, when a plurality of the puncture outfits are inserted into the human body, only the valve core 300 of the puncture outfit connected with the pneumoperitoneum machine is required to be in the open position, and the valve cores 300 of other puncture outfits are required to be in the closed position, at the moment, the pneumoperitoneum machine can inject air and exhaust smoke into the human body through the puncture outfit with the valve core 300 connected with the pneumoperitoneum machine in the open position, so that two mutually independent and self-circulating air passage channels can be established through one puncture outfit, namely, the air and the smoke can only be exhausted or enter the human body through the puncture outfit connected with the pneumoperitoneum machine, and the pneumoperitoneum can be successfully established and maintained in the operation.

It should be pointed out that, this puncture ware has set up case 300 and disk seat 200 on the basis that can the gas injection can discharge fume again, make puncture ware self just can control going on of gas injection and discharging fume, when having guaranteed that the gas injection pipe on the pneumoperitoneum machine exchanges another puncture ware from a puncture ware in the operation process, also can guarantee not to take place gas leakage, thereby guarantee the normal clear of operation, very big increase the practicality of the puncture ware that can the gas injection can discharge fume again, in addition, just can control the switching of gas injection and discharge fume channel simultaneously through a valve, greatly increased the convenience of operation, the risk of maloperation in the operation has been reduced.

As shown in fig. 1, 2, and 5, on the basis of the above embodiment, the number of the first gas injection holes 210, the second gas injection holes 220, and the gas injection connecting holes 310 is at least two and the first gas injection holes 210, the second gas injection holes 220, and the gas injection connecting holes 310 are arranged in a one-to-one correspondence, the valve seat 200 is further provided with a first gas inlet chamber 250 and a second gas inlet chamber 260, each first gas injection hole 210 is communicated with the first gas inlet chamber 250, the first gas inlet chamber 250 is communicated with the gas inlet channel, and each second gas injection hole 220 is communicated with the second gas inlet chamber 260.

Preferably, as shown in fig. 2, 5 and 6, the number of the first gas injection holes 210, the second gas injection holes 220 and the gas injection connecting holes 310 of the present embodiment is two, the two first gas injection holes 210 are both communicated with the first gas inlet chamber 250, the two second gas injection holes 220 are both communicated with the second gas inlet chamber 260, and when the valve core 300 is in the open position, the two gas injection connecting holes 310 are uniformly and correspondingly communicated with the two first gas injection holes 210 and the two second gas injection holes 220.

It should be noted that, by providing the plurality of first gas injection holes 210 and the plurality of second gas injection holes 220 in the same number on the valve seat 200 and providing the plurality of gas injection connecting holes 310 in the same number on the valve element 300, the large flow injection of gas is ensured on the basis of controlling the opening and closing of the two-channel gas path, and the practicability is greatly increased.

As shown in fig. 1 to 4, in addition to the above embodiments, a joint assembly is connected to the valve seat 200, the joint assembly is provided with an air inlet joint 421 and a smoke exhaust joint 422, the second air inlet chamber 260 is communicated with the air inlet joint 421, and the second smoke exhaust hole 240 is communicated with the smoke exhaust joint 422.

Preferably, air inlet joint 421 is connected with the pneumoperitoneum machine, and the pneumoperitoneum machine injects gas into the human body through air inlet joint 421, and smoke exhaust joint 422 is connected with smoke collecting device, and air inlet joint 421 and smoke exhaust joint 422 all exceed the terminal surface of piecing components and the tip between them all is provided with the chamfer, sets up tracheal inserting of can being convenient for like this.

As shown in fig. 1, 4, 7 and 8, in addition to the above embodiments, the joint assembly includes a joint seat 410 and a joint knob 420, the joint seat 410 is connected to the valve seat 200, the joint knob 420 is fixedly connected to the joint seat 410, and the air inlet joint 421 and the smoke exhaust joint 422 are both disposed on the joint knob 420.

Preferably, in the present embodiment, the connector base 410 and the connector knob 420 are fixedly connected by an ultrasonic welding process, and other fixing means such as glue, etc. which can achieve the same effect, should also be within the protection scope of the present invention.

Further preferably, as shown in fig. 7 and 8, the joint seat 410 is provided with a positioning column 415, the joint knob 420 is provided with a positioning hole 423, and the positioning column 415 and the positioning hole 423 play a foolproof role, so that the joint knob 420 and the joint seat 410 are always in a correct position when being fixedly connected, and therefore it is ensured that the air intake and smoke exhaust channels are not interrupted due to errors of the assembly position.

It should be noted that the connector assembly is composed of two parts, namely, the connector base 410 and the connector knob 420, and compared with the integrally formed air tube connector, the connector assembly of the puncture outfit is convenient for mold injection molding and has higher precision of molded products.

As shown in fig. 1, 2, and 4, based on the above embodiment, the joint seat 410 is in threaded connection with the valve seat 200, the joint seat 410 is provided with an air injection column 411 and a smoke discharge column 412, the smoke discharge column 412 is located in the air injection column 411 and concentrically arranged with each other, the second smoke discharge hole 240 is located in the second air intake chamber 260 and concentrically arranged with each other, when the joint seat 410 is screwed to the valve seat 200, the smoke discharge column 412 is inserted into the second smoke discharge hole 240, and the air injection column 411 is inserted into the second air intake chamber 260.

When the adapter 410 is screwed to the valve seat 200, the gas injection column 411 and the smoke exhaust column 412 are both pressed against the valve seat 200 to seal the valve seat 200 and the adapter 410.

Preferably, the adapter 410 is provided with threaded holes, as shown in fig. 6, and the valve seat 200 is provided with 4 threaded connectors 280, although the number of the threaded connectors is not limited to 4, and other threaded connectors such as 3, 5, 6, etc. are within the protection scope. The valve seat 200 in this embodiment is connected to the threaded hole of the adapter 410 by the 4 threaded connectors.

It should be noted that the joint assembly is screwed to the valve seat 200 by a screw thread so that the joint seat 410 abuts against the valve seat 200 for sealing, which is very convenient and smart, and has a simple and reliable structure.

As shown in fig. 1, 2, and 4, on the basis of the above embodiment, the joint seat 410 is further provided with a gas transition cavity 413 and a smoke transition cavity 414, the gas transition cavity 413 is communicated with the second gas inlet cavity 260, the smoke transition cavity 414 is communicated with the second smoke discharge hole 240, the gas inlet joint 421 is communicated with the gas transition cavity 413, and the smoke discharge joint 422 is communicated with the smoke transition cavity 414.

The adapter 410 and the valve seat 200 thus form a communication gas path, and gas can be injected from the adapter 410 into the valve seat 200 through the gas transition chamber 413, and smoke can be exhausted from the valve seat 200 into the adapter 410 through the smoke transition chamber 414.

As shown in fig. 1, 4 and 8, on the basis of the above embodiment, a terminal surface cavity 430 is provided between the joint base 410 and the joint knob 420, the terminal surface cavity 430 is provided with a partition plate 431, and the partition plate 431 partitions the terminal surface cavity 430 to form the gas transition cavity 413 and the smoke transition cavity 414.

It should be noted that the partition plate 431 is disposed on the joint knob 420, so that the gas path channels for gas injection and smoke exhaust can be separated while the joint base 410 and the joint knob 420 are fixedly connected, and the design is very simple and ingenious.

As shown in fig. 2, 5, and 6, on the basis of the above embodiment, the first smoke discharge holes 230 are located between the first gas injection holes 210, and the second smoke discharge holes 240 are located between the second gas injection holes 220.

Preferably, the first gas-injection holes 210 may be fan-shaped holes, or may be shaped holes such as strip-shaped holes, and each of the first gas-injection holes 210 is annularly arranged around the first gas-injection hole 210.

It should be noted that, the first gas-injection holes 210 on the valve seat 200 are distributed in a ring and surround the first gas-injection holes 210, so that the injection amount of the gas can be increased, and the injection of the gas with a large flow rate can be realized.

As shown in fig. 1 and 4, based on the above embodiment, the puncture outfit body 100 includes a bottom shell 130 and an inner sleeve 140, the valve seat 200 is connected to the bottom shell 130, the inner sleeve 140 is inserted into the bottom shell 130 and the gas injection channel 110 is located between the bottom shell 130 and the inner sleeve 140, and the smoke evacuation channel 120 is disposed in the inner sleeve 140.

As shown in fig. 1, 2, 4 and 9, the bottom case 130 is provided with a gas inlet chamber 131, a smoke outlet chamber 132 and a gas outlet 133, the gas injection channel 110 is communicated with the first gas inlet chamber 250 through the gas inlet chamber 131, the gas injection channel 110 is communicated with the human body through the gas outlet 133, and the smoke exhaust channel 120 is communicated with the first smoke discharge hole 230 through the smoke outlet chamber 132.

It should be noted that the bottom case 130 is provided with a plurality of air outlets 133 so that air can be rapidly injected into the human body, thereby rapidly establishing pneumoperitoneum.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims (10)

1. The utility model provides a puncture ware of binary channels gas circuit with control valve which characterized in that includes:

the puncture outfit body is provided with a gas injection channel and a smoke exhaust channel;

the valve seat is connected with the puncture outfit body and is provided with a first gas injection hole, a second gas injection hole, a first smoke exhaust hole and a second smoke exhaust hole, the first gas injection hole is communicated with the gas injection channel, and the first smoke exhaust hole is communicated with the smoke exhaust channel;

the case, its rotatable setting is in the disk seat, the case is provided with the gas injection connecting hole and the connecting hole of discharging fume, the case is rotatable to open the position or closed position, works as the case is located when opening the position, the second gas injection hole passes through the gas injection connecting hole with first gas injection hole intercommunication, the second discharge fume hole passes through the connecting hole of discharging fume with first discharge fume hole intercommunication, works as the case is located when closing the position, the second gas injection hole with first gas injection hole is isolated, the second discharge fume hole with first discharge fume hole is isolated.

2. The puncture instrument with a dual-channel air passage of a control valve according to claim 1, wherein: the first gas injection hole, the second gas injection hole and the quantity of gas injection connecting hole all set up to at least two and one-to-one setting, the disk seat still is provided with first chamber and the second chamber of admitting air, each first gas injection hole all with first chamber intercommunication of admitting air, first chamber of admitting air with inlet channel intercommunication, each second gas injection hole all with the second chamber intercommunication of admitting air.

3. The puncture instrument with a dual-channel air passage of a control valve according to claim 2, wherein: the valve seat is connected with a joint component, the joint component is provided with an air inlet joint and a smoke exhaust joint, the second air inlet cavity is communicated with the air inlet joint, and the second smoke exhaust hole is communicated with the smoke exhaust joint.

4. The puncture instrument with a dual-channel air passage of a control valve according to claim 3, wherein: the joint assembly comprises a joint seat and a joint knob, the joint seat is connected with the valve seat, the joint knob is fixedly connected with the joint seat, and the air inlet joint and the smoke exhaust joint are both arranged on the joint knob.

5. The puncture instrument with a dual-channel air passage of a control valve according to claim 4, wherein: the joint seat with disk seat threaded connection, the joint seat is provided with notes gas column and row's cigarette post, it is located to arrange the cigarette post in the notes gas column and both set up with one heart, the second smoke vent is located second air inlet intracavity and both set up with one heart, works as the joint seat with when the disk seat was screwed, arrange the cigarette post and insert the second smoke vent, the notes gas column inserts the second air inlet chamber.

6. The puncture instrument with a dual-channel air passage of a control valve according to claim 5, wherein: the joint seat is further provided with a gas transition cavity and a smoke transition cavity, the gas transition cavity is communicated with the second gas inlet cavity, the smoke transition cavity is communicated with the second smoke exhaust hole, the gas inlet joint is communicated with the gas transition cavity, and the smoke exhaust joint is communicated with the smoke transition cavity.

7. The puncture instrument with a dual-channel air passage of a control valve according to claim 6, wherein: an end face cavity is arranged between the joint seat and the joint knob, a partition plate is arranged in the end face cavity, and the partition plate divides the end face cavity to form the gas transition cavity and the smoke transition cavity.

8. The puncture instrument with a dual-channel air passage of a control valve according to claim 2, wherein: the first smoke exhaust holes are located between the first air injection holes, and the second smoke exhaust holes are located between the second air injection holes.

9. The puncture instrument with a dual-channel air passage of a control valve according to claim 2, wherein: the puncture outfit body comprises a bottom shell and an inner sleeve, the valve seat is connected with the bottom shell, the inner sleeve penetrates through the bottom shell, the gas injection channel is located between the bottom shell and the inner sleeve, and the smoke exhaust channel is arranged in the inner sleeve.

10. The puncture instrument with a dual-channel air passage of a control valve according to claim 9, wherein: the drain pan is provided with gas introduction chamber, smog derivation chamber and gas outlet, the gas injection passageway passes through gas introduction chamber with first air inlet chamber intercommunication, the gas injection passageway passes through gas outlet and human intercommunication, the smoke exhaust passage pass through smog derivation chamber with first fume hole intercommunication.

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