CN113558783A - Annular smoke aspirator for incision protective sleeve - Google Patents

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an annular smoke aspirator for an incision protective sleeve, which comprises a first tube, a second tube, a clamping plate and a negative pressure tube, wherein the first tube is connected with the second tube through a connecting rod; one side of the first tube, which is close to the annular circle center, is provided with a through hole; a ring groove is formed below the first pipe; a second pipe is fixedly connected in the annular groove; the surface of one side of the second pipe, which is far away from the annular circle center of the second pipe, is fixedly connected with a negative pressure pipe; the negative pressure pipe is communicated with the interior of the second pipe; an air suction hole is formed in the lower portion of the inner portion of the first pipe; the diameter of the air suction hole at the position, close to the negative pressure pipe, on the first pipe is smaller than that of the air suction hole at the position, far away from the negative pressure pipe, on the first pipe; a clamping plate is fixedly connected below the second pipe; the clamping plate consists of two clamping blocks; the two clamping blocks are close to each other at one end far away from the first pipe; the invention has simple structure, can realize the problems that the annular smoke suction device is troublesome to install, has poor smoke suction effect, is not beneficial to the expansion of an operation and is not beneficial to the health of medical care personnel.

Description

Annular smoke aspirator for incision protective sleeve

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an annular smoke aspirator for an incision protective sleeve.

Background

The tools such as the electrosurgery equipment, the laser scalpel, the ultrasonic scalpel, the high-frequency electrotome and the like are widely used in the operation, but the toxic and harmful smoke generated when the human tissue is cut in the operation process not only obstructs the sight of the operating personnel, but also can cause certain damage to the health of medical care personnel.

Among the prior art, the disposable suction tube that uses in the operation is the tubular device, and the suction scope is little, can not effectively get rid of poisonous flue gas to the device needs the handheld supplementary smoking of assistant, and extravagant manpower has occupied the space of operating table, is unfavorable for the expansion of operation, is not convenient for main doctor work.

The technical scheme of the annular smoke suction device on the incision protection sleeve also appears in the prior art, for example, a Chinese patent with the application number of CN201920144127.9 discloses the annular smoke suction device on the incision protection sleeve, which comprises an annular suction tube, an annular clamping groove, a connecting tube and open pores, wherein the annular suction tube is in an annular hollow tubular structure, the open pores are uniformly distributed on the inner wall of the annular suction tube, the annular clamping groove is in an annular semi-tubular structure, the diameter of the annular clamping groove is larger than that of the annular suction tube, the annular suction tube is positioned under the annular suction tube and is integrally connected with the annular suction tube, and one end of the connecting tube is communicated with the annular suction tube; although the utility model discloses a can carry out all-round attraction to smog, this utility model needs the ring groove lower extreme to drag and then on the ring groove chucking incision protective sheath to both ends when the incision protective sheath is sheathed in, and this process is comparatively troublesome, and consumption time is more, is unfavorable for the expansion of operation.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that in the prior art, the annular smoke suction apparatus is troublesome to mount on the incision protection sleeve, has poor smoke suction effect, is not beneficial to the expansion of an operation and is not beneficial to the health of medical care personnel, the invention provides the annular smoke suction apparatus for the incision protection sleeve.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an annular smoke aspirator for an incision protective sleeve, which comprises a first tube, a second tube, a clamping plate and a negative pressure tube; the first pipe and the second pipe are integrally annular; one side of the first tube, which is close to the annular circle center, is provided with a through hole; the through holes are uniformly distributed on the first tube by taking the annular circle center of the first tube as the center; a ring groove is formed below the first pipe; the cross section of the ring groove is arc-shaped; a second pipe is fixedly connected in the annular groove; the surface of one side of the second pipe, which is far away from the annular circle center of the second pipe, is fixedly connected with a negative pressure pipe; the negative pressure pipe is communicated with the interior of the second pipe; an air suction hole is formed in the lower portion of the inner portion of the first pipe; the first pipe is communicated with the second pipe through a suction hole; the diameter of the air suction hole at the position, close to the negative pressure pipe, on the first pipe is smaller than that of the air suction hole at the position, far away from the negative pressure pipe, on the first pipe; the second pipe is fixedly connected with the first pipe through a reinforcing rib; a clamping plate is fixedly connected below the second pipe; the clamping plate consists of two clamping blocks; the two clamping blocks are close to each other at one end far away from the first pipe; the clamping plates are multiple and are uniformly distributed below the second pipe by taking the annular circle center of the second pipe as the center;

when the device works, after the incision protection sleeve is placed into a wound of a human body, the outer ring of the upper end of the incision protection sleeve is turned to be tightly attached to the wound surface, then the two clamping blocks fixedly connected below the second tube are pulled off, the lower ends of the clamping blocks move in opposite directions, at the moment, the clamping blocks are placed on the outer ring of the incision protection sleeve in a space on one side opposite to each other, hands are loosened, one ends of the two clamping blocks far away from the first tube are close to each other, the clamping blocks are made of silica gel materials, at the moment, the outer ring of the incision protection sleeve is clamped by the two clamping blocks, then, the plurality of clamping plates are sequentially clamped by the outer ring of the incision protection sleeve, the negative pressure tube is connected to an external air extractor, and at the moment, the installation and fixation work of the annular smoke aspirator is completed; compared with the annular smoke aspirator for the incision protection sleeve in the prior art, the device can be quickly and effectively installed on the incision protection sleeve, the time for installing the device is shortened, and a certain time is strived for a doctor to perform an open operation;

when a doctor uses the electric knife to cut human body tissues, the external air suction device is opened, negative pressure is formed in the first tube and the second tube at the moment, smoke generated by cutting the human body tissues by the electric knife is sucked into the first tube through the through holes, the smoke in the first tube is sucked into the second tube through the plurality of air suction holes, and the smoke in the second tube is conveyed to the outside by the negative pressure tube to be processed; compared with the prior art that the annular smoke aspirator for the incision protection sleeve directly adopts the negative pressure pipe to communicate with the inside of the first pipe to aspirate smoke, the diameter of the suction hole arranged below the inner part of the first pipe is gradually increased on the side close to the negative pressure pipe and the side far away from the negative pressure pipe, so that when the gas in the first pipe is aspirated, the negative pressure at each position in the first pipe is in a mean value state, the gas in the first pipe can be uniformly and stably aspirated away, the phenomenon that the inner wall of the first pipe made of silica gel or rubber is attached to the position of the negative pressure pipe due to overlarge pressure of the aspirated gas caused by directly connecting the negative pressure pipe with the first pipe is avoided, other positions of the first pipe cannot effectively aspirate the smoke, the smoke escapes from other places, the smoke shields the sight of a doctor, is not beneficial to the expansion of an operation, and the smoke is easy to be inhaled by the doctor through the protective mask, is not beneficial to the health of medical care personnel; this application links firmly through the strengthening rib between setting up No. two pipes and a pipe, has guaranteed the joint strength of No. two pipes and a pipe, causes the vibration of this application device when reducing external device and bleeding, avoids causing the damage to patient's wound department.

Preferably, the inner walls of the first pipe and the second pipe are fixedly connected with cross-shaped strips between two adjacent air suction holes;

when the suction device works, when the external suction device extracts gas in the first tube and the second tube, the cross-shaped strips fixedly connected between the adjacent two suction holes on the inner wall of the first tube and the inner wall of the second tube can effectively strengthen the overall structural strength of the first tube and the second tube, and avoid that one side part of the first tube close to the annular circle center of the first tube shrinks towards one side far away from the annular circle center of the first tube due to overlarge pressure of the gas extracted by the extraction device, so that one side part of the first tube close to the annular circle center of the first tube is extruded to reduce the diameter of the through hole, thereby not effectively sucking smoke, being not beneficial to the expansion of an operation and protecting the health of medical care personnel; great messenger's a pipe and No. two pipes inner walls are close to each other but during contactless when the pressure of draw-out device extraction gas, though this kind of condition still can attract the flue gas, but when a pipe and No. two pipes inner wall warp respectively, the position of through-hole also can change relatively, thereby lead to the through-hole can not be with the complete attraction of flue gas, consequently this application can effectively avoid the production of above-mentioned condition through setting up the cross flower strip, guarantee a pipe and No. two inside space structure relatively stable, be favorable to the flue gas that the electrotome cutting human tissue produced to last stable attraction.

Preferably, a plurality of elastic steel wires are fixedly connected inside the first tube and the second tube; the elastic steel wires are uniformly distributed in the first pipe and the second pipe by taking the central points of the cross sections of the first pipe and the second pipe as centers;

the during operation, when outside air exhaust device to a pipe, when No. two inside gases extract, the elasticity steel wire is made for stainless steel, the elasticity steel wire can effectively guarantee that a pipe and No. two inside parts that do not have the cross flower can possess certain negative pressure resistance, make it possess certain elasticity, when attracting the flue gas that the operation produced, can effectively reduce the space range variation of a pipe and No. two inside parts that do not have the cross flower, improve the stability that this device attracted the flue gas, improve the practicality of this device.

Preferably, a groove is formed in the circumferential surface of the first tube on one side close to the annular center of the first tube; the cross section of the groove is U-shaped; the through hole consists of a first hole and a second hole; the first hole is positioned above the second hole, and one end of the first hole, which is close to the circular center of the first pipe, penetrates through the groove and is inclined upwards; one end of the second hole, which is close to the circular center of the first pipe, penetrates through the groove, and the opening is inclined downwards;

the during operation, when attracting the flue gas, the flue gas is at first attracted the flue gas through No. two pore pairs of downtilt on a pipe, the flue gas that is not attracted by No. two pores this moment is attracted by a pore pair that is located the uptilt on a pipe, under the combined action in a pore pair and No. two pores, avoid only setting up the haplopore on a pipe and probably having the problem that the flue gas can not be attracted completely, improve the effect of the attraction flue gas of this device, improve the practicality of this device, provide convenience when doing open operation for the doctor, avoid medical personnel to inhale the problem that has the poison flue gas and be unfavorable for healthy simultaneously.

Preferably, the surfaces of the opposite sides of the clamping blocks are fixedly connected with a plurality of rubber strips; the end, far away from the clamping block, of the rubber strip is inclined upwards;

the during operation, when two clamp splice clamp tightly the incision protective sheath, be silica gel or rubber material because of incision protective sheath and clamp splice and make, thereby when attracting the flue gas, probably there is the relative slip between the two because of the vibration that this device work produced between incision protective sheath and the clamp splice, be unfavorable for fixing this device, and the clamp splice in a plurality of rubber strips and the rubber strip that links firmly in a lateral surface in opposite directions one end tilt up in keeping away from the clamp splice, make the rubber strip can hug closely incision protective sheath surface, can effectual reduction appear between clamp splice and the incision protective sheath because of the vibration that this application device work produced produces the problem of relative slip, improve the stability of being connected between this device and the incision protective sheath, improve the stability and the efficiency that this device attracted the flue gas.

Preferably, a magnetic block is fixedly connected to the lower part of the inner part of the clamping block; the magnetic blocks in the two clamping blocks attract each other;

the during operation, when two clamp splice clamp tight incision protective sheaths, under the effect of the inter attraction's that links firmly below two clamp splices, the clamp splice can be more firm be connected with the incision protective sheath, avoid medical personnel not to bump this device and lead to the problem that two clamp splices easily come off the incision protective sheath, strengthen the firm nature of being connected between this device and the incision protective sheath, improve the security that the doctor carried out open operation.

The invention has the following beneficial effects:

1. the annular smoke aspirator for the incision protective sleeve is characterized in that the diameter of the aspirator hole is gradually increased from one side close to the negative pressure pipe to the other side far away from the negative pressure pipe, when the gas in the first tube is extracted, the negative pressure at each position in the first tube is in a mean value state, the gas in the first tube can be uniformly and stably extracted, the phenomenon that the inner walls of the first tube are attached to each other and the smoke gas cannot be effectively absorbed at other positions of the first tube due to the fact that the first tube made of silica gel or rubber is extruded by atmospheric pressure at the position of the negative pressure tube because the pressure of the extracted gas is too high because the negative pressure tube is directly connected with the first tube is avoided, thereby leading the smoke to be dissipated from other places, leading the smoke to block the sight of a doctor and be not beneficial to the expansion of the operation, meanwhile, the smoke is easy to be inhaled by a doctor through the protective mask, and is not beneficial to the health of medical care personnel.

2. According to the annular smoke aspirator for the incision protective sleeve, the overall structural strength of the first tube and the second tube can be effectively enhanced by arranging the first tube, the second tube and the cross-shaped strips, the internal space structures of the first tube and the second tube are relatively stable, and the continuous and stable suction of smoke generated by cutting human tissues by an electrotome is facilitated.

3. According to the annular smoke aspirator for the incision protective sleeve, the rubber strip can be tightly attached to the surface of the incision protective sleeve through the clamping blocks, the rubber strip and the magnets, so that relative sliding between the clamping blocks and the incision protective sleeve due to vibration generated by the operation of the device is reduced, and meanwhile, the magnetic blocks which are mutually attracted exist in the two clamping blocks, so that the clamping blocks can be more firmly connected with the incision protective sleeve, the connection stability between the device and the incision protective sleeve is improved, and the stability and efficiency of the device for smoke attraction are improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic view of the present invention taken in section;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

in the figure: the pipe comprises a first pipe 1, a second pipe 2, a clamping plate 3, a clamping block 31, a negative pressure pipe 4, a through hole 5, a first hole 51, a second hole 52, a ring groove 6, an air suction hole 7, a reinforcing rib 8, a cross-shaped flower strip 11, an elastic steel wire 12, a groove 13, a rubber strip 14 and a magnetic block 15.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 2, the annular smoke aspirator for an incision sheath comprises a first tube 1, a second tube 2, a splint 3 and a negative pressure tube 4; the first pipe 1 and the second pipe 2 are annular as a whole; a through hole 5 is formed in one side, close to the annular circle center, of the first pipe 1; the through holes 5 are uniformly distributed on the first tube 1 by taking the annular circle center of the first tube 1 as the center; a ring groove 6 is formed below the first pipe 1; the cross section of the ring groove 6 is arc-shaped; a second pipe 2 is fixedly connected in the annular groove 6; the surface of one side of the second pipe 2, which is far away from the annular circle center of the second pipe 2, is fixedly connected with a negative pressure pipe 4; the negative pressure pipe 4 is communicated with the inside of the second pipe 2; an air suction hole 7 is formed in the lower portion of the inner portion of the first tube 1; the first pipe 1 is communicated with the second pipe 2 through an air suction hole 7; the diameter of the air suction hole 7 on the first tube 1 at the position close to the negative pressure tube 4 is smaller than that of the air suction hole 7 on the first tube 1 at the position far away from the negative pressure tube 4; the second pipe 2 is fixedly connected with the first pipe 1 through a reinforcing rib 8; a clamping plate 3 is fixedly connected below the second pipe 2; the clamping plate 3 consists of two clamping blocks 31; the two clamping blocks 31 are close to each other at one end far away from the first pipe 1; the clamping plates 3 are multiple and are uniformly distributed below the second pipe 2 by taking the annular circle center of the second pipe 2 as the center;

when the device works, after the incision protection sleeve is placed into a wound of a human body, the outer ring at the upper end of the incision protection sleeve is turned to be tightly attached to the wound surface, then the two clamping blocks 31 fixedly connected below the second tube 2 are pulled off, the lower ends of the clamping blocks 31 move in opposite directions, at the moment, the clamping blocks 31 are placed on the outer ring of the incision protection sleeve in a space on one side opposite to each other, hands are loosened, because the two clamping blocks 31 are close to one end away from the first tube 1, and the clamping blocks 31 are made of silica gel materials, at the moment, the two clamping blocks 31 clamp the outer ring of the incision protection sleeve, then the clamping plates 3 clamp the outer ring of the incision protection sleeve in sequence, the negative pressure tube 4 is connected to an external air extractor, and at the moment, the installation and fixation work of the annular smoke aspirator is completed; compared with the annular smoke aspirator for the incision protection sleeve in the prior art, the device can be quickly and effectively installed on the incision protection sleeve, the time for installing the device is shortened, and a certain time is strived for a doctor to perform an open operation;

when a doctor uses an electrotome to cut human body tissues, an external air extraction device is opened, negative pressure is formed inside a first tube 1 and a second tube 2 at the moment, smoke generated by cutting the human body tissues by the electrotome is sucked into the first tube 1 through a through hole 5, the smoke inside the first tube 1 is sucked into the second tube 2 through a plurality of air suction holes 7, and the smoke inside the second tube 2 is transported to the outside by a negative pressure tube 4 to be processed; compared with the prior art that the annular smoke aspirator for the incision protection sleeve directly adopts the negative pressure pipe 4 to communicate with the inside of the first pipe 1 to suck smoke, the diameter of the suction hole 7 arranged below the inside of the first pipe 1 is gradually increased from the side close to the negative pressure pipe 4 to the side far away from the negative pressure pipe 4, so that when gas in the first pipe 1 is sucked, the negative pressure at each position in the first pipe 1 is in a mean value state, the gas in the first pipe 1 can be uniformly and stably sucked, the situation that the inner wall of the first pipe 1 made of silica gel or rubber is attached to the position of the negative pressure pipe 4 due to the fact that the pressure of the sucked gas is too high when the negative pressure pipe 4 is directly connected with the first pipe 1 is avoided, other positions of the first pipe 1 cannot effectively suck smoke, the smoke escapes from other positions, and the smoke shields the vision of a doctor from being unfavorable for the expansion of the operation, meanwhile, the smoke is easy to be inhaled by a doctor through the protective mask, so that the health of medical care personnel is not facilitated; this application links firmly through strengthening rib 8 between setting up No. two pipe 2 and a pipe 1, has guaranteed No. two pipe 2 and a pipe 1's joint strength, causes the vibration of this application device when reducing the external device and bleeding, avoids causing the damage to patient's wound department.

As an embodiment of the invention, the inner walls of the first pipe 1 and the second pipe 2 are fixedly connected with cross-shaped strips 11 between two adjacent air suction holes 7;

when the device works, when the external air pumping device pumps the gas in the first tube 1 and the second tube 2, the cross-shaped strips 11 fixedly connected between the adjacent two air suction holes 7 on the inner wall of the first tube 1 and the inner wall of the second tube 2 can effectively strengthen the overall structural strength of the first tube 1 and the second tube 2, and prevent the first tube 1 from contracting from one side close to the annular circle center of the first tube 1 to one side far away from the annular circle center of the first tube 1 due to overlarge air pumping pressure of the pumping device, so that the diameter of the through hole 5 is reduced due to the extrusion of the part of the first tube 1 on one side close to the annular circle center of the first tube 1, the smoke cannot be effectively sucked, the expansion of an operation is not facilitated, and the health of medical care personnel is not facilitated; great messenger's a pipe 1 and No. two pipe 2 inner walls are close to each other but during contactless when the pressure of draw-out device extraction gas, though this kind of condition still can attract the flue gas, but when a pipe 1 and No. two pipe 2 inner walls warp respectively, the position of through-hole 5 also can change relatively, thereby lead to through-hole 5 can not be with the complete attraction of flue gas, consequently this application can effectively avoid the production of above-mentioned condition through setting up cross flower strip 11, guarantee a pipe 1 and No. two 2 inside space structures of pipe relatively stable, be favorable to the flue gas that the electrotome cutting human tissue produced to continuously stable attraction.

As an embodiment of the invention, a plurality of elastic steel wires 12 are fixedly connected inside the first tube 1 and the second tube 2; the elastic steel wires 12 are uniformly distributed in the first pipe 1 and the second pipe 2 respectively by taking the central points of the cross sections of the first pipe and the second pipe as centers;

the during operation, when outside air exhaust device to a pipe 1, when No. 2 inside gases of pipe extract, elastic steel wire 12 is made for stainless steel, elastic steel wire 12 can effectively guarantee that No. 1 and No. 2 inside parts that do not have cross flower strip 11 of a pipe can possess certain negative pressure resistance, make it possess certain elasticity, when attracting the flue gas that the operation produced, can effectively reduce the space range variation of No. 1 inside no cross flower strip 11 of a pipe and No. 2, improve the stability that this device attracted the flue gas, improve the practicality of this device.

As an embodiment of the invention, a groove 13 is formed on the circumferential surface of the first tube 1 at one side close to the annular center of the first tube 1; the cross section of the groove 13 is U-shaped; the through hole 5 consists of a first hole 51 and a second hole 52; the first hole 51 is positioned above the second hole 52, and one end of the first hole 51, which is close to the annular circle center of the first pipe 1, penetrates through the groove 13 and inclines upwards; one end of the second hole 52 close to the annular circle center of the first pipe 1 penetrates through the groove 13, and the opening is inclined downwards;

the during operation, when attracting the flue gas, the flue gas is at first attracted the flue gas through No. two holes 52 of slope downwards on No. 1 pipe, the flue gas that is not attracted by No. two holes 52 this moment is attracted by a hole 51 that is located the tilt up on No. 1 pipe, under the combined action of a hole 51 and No. two holes 52, avoid only setting up the haplopore on No. 1 pipe and probably have the problem that the flue gas can not be attracted completely, improve the effect of the attraction flue gas of this device, improve the practicality of this device, provide convenience when doing open operation for the doctor, avoid medical personnel to inhale the poisonous flue gas and be unfavorable for the healthy problem simultaneously.

As an embodiment of the present invention, a plurality of rubber strips 14 are fixedly connected to the opposite side surfaces of the clamping blocks 31; the end of the rubber strip 14 far away from the clamping block 31 is inclined upwards;

the during operation, when two clamp splice 31 press from both sides tight incision protective sheath, be silica gel or rubber material because of incision protective sheath and clamp splice 31 and make, thereby when attracting the flue gas, probably there is the relative slip between the two because of the vibration that this device work produced between incision protective sheath and the clamp splice 31, be unfavorable for fixing this device, and clamp splice 31 in a plurality of rubber strips 14 and the rubber strip 14 that links firmly in a lateral surface in opposite directions 31 one end tilt up in keeping away from clamp splice, make rubber strip 14 can hug closely incision protective sheath surface, can effectual reduction appear between clamp splice 31 and the incision protective sheath because of the vibration that this application device work produced and produce the problem of relative slip, improve the stability of being connected between this device and the incision protective sheath, improve the stability and the efficiency that this device attracts the flue gas.

As an embodiment of the present invention, a magnetic block 15 is fixedly connected to the lower portion inside the clamping block 31; the magnetic blocks 15 in the two clamping blocks 31 attract each other;

the during operation, when two clamp splice 31 press from both sides tight incision protective sheath, under the effect of the inter attraction's that links firmly below two clamp splice 31 insides magnetic path 15, clamp splice 31 can be more firm be connected with the incision protective sheath, avoid medical personnel not to bump this device and lead to the problem that two clamp splice 31 easily come off the incision protective sheath, strengthen the firm nature of being connected between this device and the incision protective sheath, improve the security that the doctor carried out open operation.

The specific implementation flow is as follows:

after the incision protection sleeve is placed in a wound of a human body, the outer ring at the upper end of the incision protection sleeve is turned to be tightly attached to the wound surface, then the two clamping blocks 31 fixedly connected below the second tube 2 are pulled off, the lower ends of the clamping blocks 31 move in opposite directions, the clamping blocks 31 are placed on the outer ring of the incision protection sleeve in a space on one side opposite to the first tube, hands are loosened, due to the fact that the two clamping blocks 31 are close to one end far away from the first tube 1, the clamping blocks 31 are fixedly connected with a plurality of rubber strips 14 on the surface on one side opposite to the first tube, the rubber strips 14 are inclined upwards on one end far away from the clamping blocks 31, and meanwhile under the action of mutually-attracted magnetic blocks 15 fixedly connected below the two clamping blocks 31, the two clamping blocks 31 clamp the outer ring of the incision protection sleeve, then the plurality of clamping plates 3 clamp the outer ring of the incision protection sleeve in sequence, the negative pressure tube 4 is connected to an external air extractor, and the installation and fixation work of the annular smoke extractor is completed;

when a doctor uses the electrotome to cut human tissues, the external air suction device is opened, negative pressure is formed inside the first tube 1 and the second tube 2, the inner wall of the first tube 1 and the inner wall of the second tube 2 are fixedly connected with the cross-shaped strips 11 between the two adjacent air suction holes 7, the overall structural strength of the first tube 1 and the second tube 2 can be effectively ensured, the elastic steel wires 12 in the first tube 1 and the second tube 2 can effectively ensure that the parts without the cross-shaped strips 11 in the first tube 1 and the second tube 2 can have certain negative pressure resistance to avoid the tube wall from deforming, the smoke generated by the electric knife cutting human tissues is firstly sucked through the downwardly inclined second holes 52 on the first tube 1, the smoke which is not sucked by the second holes 52 is sucked by the upwardly inclined first holes 51 on the first tube 1, under the combined action of the first hole 51 and the second hole 52, the generated smoke is transported to the outside by the negative pressure pipe 4 for treatment.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. An annular smoke aspirator for an incision sheath is characterized in that: comprises a first tube (1), a second tube (2), a clamping plate (3) and a negative pressure tube (4); the first pipe (1) and the second pipe (2) are integrally annular; one side of the first tube (1) close to the annular circle center is provided with a through hole (5); the number of the through holes (5) is multiple, and the through holes are uniformly distributed on the first tube (1) by taking the annular circle center of the first tube (1) as the center; a ring groove (6) is formed below the first pipe (1); the cross section of the ring groove (6) is arc-shaped; a second pipe (2) is fixedly connected in the annular groove (6); the surface of one side of the second pipe (2) far away from the circular center of the second pipe (2) is fixedly connected with a negative pressure pipe (4); the negative pressure pipe (4) is communicated with the inside of the second pipe (2); an air suction hole (7) is formed in the lower portion of the inner portion of the first pipe (1); the first pipe (1) is communicated with the second pipe (2) through an air suction hole (7); the diameter of the air suction hole (7) at the position, close to the negative pressure pipe (4), on the first pipe (1) is smaller than that of the air suction hole (7) at the position, far away from the negative pressure pipe (4), on the first pipe (1); the second pipe (2) is fixedly connected with the first pipe (1) through a reinforcing rib (8); a clamping plate (3) is fixedly connected below the second tube (2); the clamping plate (3) consists of two clamping blocks (31); one ends of the two clamping blocks (31) far away from the first pipe (1) are close to each other; the clamping plates (3) are multiple and are uniformly distributed below the second tube (2) by taking the annular circle center of the second tube (2) as the center.

2. An annular smoke aspirator for an incision protector according to claim 1, wherein: a cross-shaped flower bar (11) is fixedly connected between the inner wall of the first pipe (1) and the inner wall of the second pipe (2) and between the two adjacent air suction holes (7).

3. An annular smoke aspirator for an incision protector according to claim 2, wherein: a plurality of elastic steel wires (12) are fixedly connected inside the first pipe (1) and the second pipe (2); the elastic steel wires (12) are uniformly distributed in the first pipe (1) and the second pipe (2) by taking the respective cross section center points as centers.

4. An annular smoke aspirator for an incision protector according to claim 1, wherein: a groove (13) is formed in the circumferential surface of the first tube (1) close to one side of the annular circle center of the first tube (1); the cross section of the groove (13) is U-shaped; the through hole (5) consists of a first hole (51) and a second hole (52); the first hole (51) is positioned above the second hole (52), and one end of the first hole (51) close to the annular circle center of the first pipe (1) penetrates through the groove (13) and inclines upwards; one end of the second hole (52) close to the annular circle center of the first pipe (1) penetrates through the groove (13), and the opening is downward inclined.

5. An annular smoke aspirator for an incision protector according to claim 1, wherein: the surfaces of the opposite sides of the clamping blocks (31) are fixedly connected with a plurality of rubber strips (14); the rubber strip (14) inclines upwards at one end far away from the clamping block (31).

6. An annular smoke aspirator for an incision protector according to claim 5, wherein: a magnetic block (15) is fixedly connected to the lower part of the inner part of the clamping block (31); the magnetic blocks (15) in the two clamping blocks (31) are mutually attracted.

Images