CN218356796U - Special suction system for arthroscopic surgery - Google Patents

Abstract

The utility model discloses a special suction system for arthroscopic surgery, which relates to the technical field of medical instruments and comprises a suction apparatus and a suction bottle; the suction apparatus comprises an outer shell and a liquid suction cavity arranged in the outer shell, and the head and the tail of the outer shell are respectively provided with a suction inlet and a negative pressure suction tube which are communicated with the liquid suction cavity; the suction bottle comprises a bottle body and a sealing cover, the sealing cover is provided with a catheter and an exhaust tube, and a reverse suction prevention floater for preventing the exhaust tube from sucking liquid in the bottle body reversely is arranged in the bottle body; one end of the liquid guide pipe is connected with the negative pressure suction pipe, and the other end of the liquid guide pipe extends into the bottle body; one end of the exhaust tube is used for being connected with an external air exhaust device, and the other end of the exhaust tube extends into the bottle body and is connected with the anti-reverse suction floater. The beneficial effects of the utility model are that the anti-suck-back float in the suction bottle can shelter from the oral area of exhaust tube along exhaust tube rebound under the effect of the buoyancy is produced to the flush fluid, avoids the flush fluid to be by among the suck-back air exhaust device.

Description

A special suction system for arthroscopic surgery

technical field

The utility model relates to the technical field of medical instruments, in particular to a special suction system for arthroscopic surgery.

Background technique

In many orthopedic operations, such as hip replacement, knee catheterization, etc., it is necessary to cut or repair human bones in order to use orthopedic plate fixation or titanium prosthesis for fixation. After the prosthesis is fixed, it is necessary to Flush the replacement site with copious amounts of irrigating fluid to keep the replacement surface clean, and the irrigating fluid needs to be removed after cleaning.

At present, a suction system is usually used to suck away the irrigating fluid. The suction system usually includes a suction head and a suction bottle. The suction bottle is connected with an air suction device, so that the irrigating fluid can be sucked into the suction bottle through the suction head. In the prior art, when the suction bottle is nearly full, the rinsing liquid in the suction bottle is easily sucked back into the suction device, thereby causing damage to the suction device.

At the same time, due to the use of electric bone saws in the operation, a large number of fine bone fragments of different sizes will be produced, and these fine fragments are mixed with the irrigation fluid, so it is very easy to use the suction system to suck the irrigation fluid away. The broken bones are sucked into the suction system together, which will cause blockage of the suction tube and suction bottle in the suction system. If the blockage is serious, the entire suction device needs to be replaced, which not only prolongs the treatment time of the patient, but also affects the efficiency of the operation. In the prior art, in order to solve the problem of blockage of the suction system, patrol nurses are usually arranged to regularly clean the suction pipeline during the operation to achieve the effect of smooth use of the suction system. The method of regular cleaning by special personnel is not only inefficient, but also It is also a great waste of medical resources.

Utility model content

The purpose of the utility model is to at least solve one of the technical problems in the prior art, and provide a special suction system for arthroscopic surgery.

The technical solution of the utility model is as follows:

A special suction system for arthroscopic surgery, comprising a suction device and a suction bottle;

The aspirator includes an outer shell and a liquid suction chamber arranged in the outer shell, and the head and tail of the outer shell are respectively provided with a suction port and a negative pressure suction tube communicating with the liquid suction chamber;

The suction bottle includes a bottle body and a sealing cover, and the sealing cover is provided with a catheter and an air suction tube, and the bottle is provided with an anti-suction float for preventing the suction tube from sucking back liquid in the bottle; One end of the catheter tube is connected with the negative pressure suction tube, and the other end is stretched into the bottle; one end of the suction tube is used to connect with an external suction device, and the other end is stretched into the bottle and connected to the bottle. The anti-suckback float is connected, and the anti-suckback float can move upward along the suction pipe and cover the mouth of the suction pipe under the buoyancy of the liquid in the suction bottle.

As a preferred technical solution of the present invention, the anti-suckback float includes a float body, the upper end of the float body is slidably arranged on the suction pipe, and the side wall of the float body has a The lower end of the float body has an upwardly protruding sealing plug, the sealing plug is located below the suction pipe, and the size of the sealing plug matches the size of the mouth of the suction pipe, and the float The main body can move upwards along the suction pipe under the effect of the buoyancy of the liquid in the suction bottle so that the sealing plug can cover the mouth of the suction pipe.

As a preferred technical solution of the present invention, a filter mesh bag connected to the catheter is arranged inside the bottle.

As a preferred technical solution of the present utility model, a crushing rotor, a grinding rotor and a driving motor are arranged in the housing, and the crushing rotor and the grinding rotor are arranged in the liquid suction cavity, and the driving motor is connected with the crushing rotor and the driving motor. The grinding rotor is connected to be able to drive the grinding rotor and the grinding rotor to rotate.

As a preferred technical solution of the present invention, the pulverizing rotor includes a rotating shaft and a drill bit arranged on the rotating shaft, the drill bit is arranged toward the suction inlet, and the rotating shaft is connected to a driving motor.

As a preferred technical solution of the present utility model, the drill bit and the inner side wall of the outer casing are fitted with a gap, and the gap is 2-8 mm.

As a preferred technical solution of the utility model, the drill bit is in the shape of a shuttle.

As a preferred technical solution of the present invention, the front end of the crushing rotor is arranged close to the suction port, the rear end is connected to the grinding rotor through a connecting shaft, and the rear end of the grinding rotor is connected to the grinding rotor through another connecting shaft. Drive motor connection.

As a preferred technical solution of the present invention, the grinding rotor is fitted with a gap between the inner side wall of the outer casing, and the gap is 1-5 mm.

As a preferred technical solution of the present invention, the outer casing also has a negative pressure chamber connected to the negative pressure suction tube, and the negative pressure chamber communicates with the liquid suction chamber; A foot switch for on-off power supply of the drive motor is described, and the foot switch is connected with the drive motor.

The utility model has at least one of the following beneficial effects:

1. In the utility model, by setting the anti-suckback float in the suction bottle, it is possible to prevent the flushing liquid collected in the suction bottle from being sucked back into the suction device. Specifically, before the suction bottle is not full of liquid, the anti-suckback float Not in contact with the flushing liquid in the suction bottle, the sealing plug on the anti-suckback float is away from the suction pipe under the action of its own gravity, and the suction pipe works normally, so that the suction port in the suction bottle can be sucked through the suction port on the side wall of the anti-suckback float. The gas is sucked away to form a negative pressure; when the suction bottle is close to full, the anti-suckback float contacts the flushing liquid in the suction bottle, and the anti-suckback float moves upward along the suction pipe under the action of the buoyancy generated by the flushing liquid. The sealing plug can cover the mouth of the suction pipe, thereby preventing the flushing liquid collected in the suction bottle from being sucked back into the suction device, and avoiding damage to the suction device. The broken bone particles in the irrigating fluid can be filtered through the filter bag, which facilitates the separation of the rinsing fluid and the broken bone.

2. The suction device in the utility model can pulverize and grind the inhaled bone fragments. Specifically, the driving motor can drive the crushing rotor and the grinding rotor to rotate at the same time. Drilling, and the clearance between the drill bit and the side wall of the outer shell can initially crush the large pieces of broken bones, so as to crush the broken bones and other tissues entering the liquid suction chamber; and then further grind the broken bones and other tissues through the grinding rotor Fine, through the dual functions of the crushing rotor and the grinding rotor, the bone fragments can be well processed into small particles, so that the suction tube and suction bottle can be prevented from being blocked by tissues such as bone fragments. And the drill bit in the utility model is shuttle-shaped, which can avoid the problem that the residual bone fragments on the crushing rotor are not easy to clean.

Description of drawings

Fig. 1 is a schematic structural view of a special suction system for arthroscopic surgery in a preferred embodiment of the present invention;

Fig. 2 is the schematic structural view of the aspirator in the preferred embodiment of the utility model;

Fig. 3 is a schematic cross-sectional structure diagram of an aspirator in a preferred embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structural view of the suction bottle in a preferred embodiment of the present invention;

Marked in the figure:

1. Aspirator; 101. Outer shell; 102. Suction port; 103. Suction cavity; 104. Crushing rotor; 1041. Rotating shaft; 1042. Drill bit; 1043. Propeller blade; 105. Grinding rotor; 106. Drive motor; 107 , negative pressure suction tube; 108, negative pressure cavity; 109, motor power supply line; 1010, suction pipe joint, 1011, suction hole;

2, suction bottle; 201, bottle body; 202, sealing cover; 203, catheter tube; 204, suction pipe; 205, anti-suction float; 2051, float body; Filter bag.

Detailed ways

The utility model is described in further detail below with specific examples, but the utility model is not limited to the following specific examples.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention through specific situations.

As shown in Figure 1, this embodiment provides a special suction system for arthroscopic surgery, including a suction device 1 and a suction bottle 2, through which the irrigation fluid is sucked through the suction device 1 and collected in the suction bottle 2, the suction device 1 and the suction bottle The specific structure of bottle 2 is as follows:

As shown in Figures 2-3, the aspirator 1 includes an outer casing 101, the outer casing 101 has a liquid suction chamber 103 inside, and the front end of the outer casing 101 has a suction port 102 communicating with the outside world, the outer casing 101 Several suction holes 1011 are also arranged on the outer wall of the front end of the body 101. The liquid suction chamber 103 communicates with the suction port 102 and the suction hole 1011. Both the suction port 102 and the suction hole 1011 are used to suck flushing liquid. The suction hole 1011 The size and quantity can be determined according to the actual situation.

A crushing rotor 104, a grinding rotor 105 and a drive motor 106 are arranged in the outer shell 101, specifically, the crushing rotor 104 and the grinding rotor 105 are arranged in the liquid suction chamber 103, and the tail of the outer shell 101 is also There is a placement cavity, the placement cavity is not connected with the liquid suction cavity 103, the drive motor 106 is arranged in the placement cavity, and the tail of the outer casing 101 is also provided with a motor power supply line 109 connected to the drive motor 106; The driving motor 106 is connected with the pulverizing rotor 104 and the grinding rotor 105. Specifically, the front end of the pulverizing rotor 104 is arranged close to the suction port 102, and the rear end is connected with the grinding rotor 105 through a connecting shaft. The grinding rotor 105 The rear end of the shaft is connected with the driving motor 106 through another connecting shaft, so that the pulverizing rotor 104 and the grinding rotor 105 can be driven to rotate simultaneously by the driving motor 106, so as to pulverize and grind the bone fragments entering the liquid suction cavity 103.

In this embodiment, the crushing rotor 104 includes a rotating shaft 1041 and a drill bit 1042, the rotating shaft 1041 is connected to the grinding rotor 105, the drill bit 1042 is arranged at the front end of the rotating shaft 1041, and the drill bit 1042 is arranged toward the suction port 102, The gap between the drill bit 1042 and the inner side wall of the outer shell 101 is matched, preferably, the gap is 2-8mm, so that the large bone fragments can be crushed initially; the drill bit 1042 in this embodiment is in the shape of a shuttle, that is, the drill bit The two ends of 1042 are narrow and the middle is wide, so as to avoid the problem that the broken bones remaining on the crushing rotor 104 are not easy to clean.

In this embodiment, the grinding rotor 105 and the inner side wall of the outer casing 101 are fitted with a gap, the preferred gap is 1-5mm, the grinding rotor 105 is preferably made of corundum material, and the outer diameter of the grinding rotor 105 is determined by the outer diameter of the outer casing 101. The direction from the head to the tail gradually increases, and the grinding rotor 105 can further grind the pulverized bone and tissue finely, so as to prevent the broken bone and tissue from entering the negative pressure suction tube and blocking the negative pressure suction tube.

The rear end of the outer shell 101 is provided with a negative pressure suction tube 107, and the inside of the outer shell 101 also has a negative pressure chamber 108 connected to the negative pressure suction tube 107. In this embodiment, the negative pressure chamber 108 is set At the rear end of the grinding rotor 105 , the negative pressure chamber 108 communicates with the liquid suction chamber 103 , and a suction pipe joint 1010 is provided on the negative pressure suction pipe 107 .

As shown in Figure 4, the suction bottle 2 includes a bottle body 201 and a sealing cap 202 for sealing the bottle body 201, the sealing cap 202 is provided with a catheter 203 and an air suction tube 204, and the fluid guiding One end of the pipe 203 is connected with the negative pressure suction pipe 107, specifically with the suction pipe joint 1010, and the other end extends into the bottle body 201; one end of the air suction pipe 204 is used for connecting with an external air extraction device, The other end extends into the bottle body 201 . Can make suction bottle 2, negative pressure suction tube 107 and negative pressure chamber 108 produce negative pressure in suction bottle 2, negative pressure suction pipe 107 and negative pressure chamber 108 by air extraction device, thereby can inhale flushing liquid and broken bone etc. in the liquid suction chamber 103 through suction inlet 102 and suction hole 1011, Enter the negative pressure cavity 108 and the negative pressure suction tube 107 in turn, and finally the irrigating fluid and bone fragments can be collected into the absorption bottle 2 .

The bottle body 201 is provided with an anti-suckback float 205, which is connected to the lower end of the suction pipe 204, and the anti-suckback float 205 can move along As the suction pipe 204 moves upward and blocks the mouth of the suction pipe 204, it can prevent the suction pipe 204 from sucking back the liquid in the bottle body 201; in this embodiment, the anti-suction float 205 includes a float body 2051, the upper end of the float body 2051 is slidably arranged on the air extraction pipe 204, specifically, the lower end of the air extraction pipe 204 has a step, and the upper end of the float body 2051 has a matching block, through the cooperation of the block and the step , so that the upper end of the float body 2051 is sleeved on the lower end of the suction pipe 204, and the float body 2051 can move upward along the outer wall of the suction pipe 204; Air port 2052, the lower end of the float body 2051 has an upwardly protruding sealing plug 2053, the sealing plug 2053 is located below the suction pipe 204, and the size of the sealing plug 2053 is adapted to the size of the mouth of the suction pipe 204 . Before the suction bottle 2 is not full of liquid, the anti-suckback float 205 is not in contact with the flushing liquid in the suction bottle 2, and the sealing plug 2053 on the anti-suckback float 205 is far away from the suction pipe 204 under the action of its own gravity, and the suction pipe 204 is normal work, so that the gas in the suction bottle 2 can be sucked away through the suction port 2052 on the side wall of the anti-suction float 205 to form a negative pressure; The flushing liquid is in contact with the flushing liquid, and the buoyancy generated by the flushing liquid is greater than the gravity of the anti-suckback float 205 itself, so that the anti-suckback float 205 can move upwards along the suction pipe under the action of the buoyancy generated by the flushing liquid, so that the sealing plug 2053 can block the suction pipe 204 to prevent the flushing liquid collected in the suction bottle 2 from being sucked back into the suction device and causing damage to the suction device.

The bottle body 201 is provided with a filter bag 206 connected to the catheter 203, through which the broken bone particles in the irrigating fluid can be filtered, thereby facilitating the separation of the rinsing fluid and the broken bone .

This embodiment also includes an external switch for controlling the power supply of the drive motor 106 and the external air extraction device. In this embodiment, the external switch is a foot switch, and the foot switch is connected with the drive motor 106 and the external air extraction The device is connected, and the medical staff can control the power supply of the drive motor 106 and the external air extraction device by stepping on the foot switch, so as to control the rotation of the drive motor 106 and the operation of the external air extraction device.

The utility model makes negative pressure in the suction bottle 2 by opening the external air extraction device, and the negative pressure suction tube 107 connected with the suction bottle 2 and the negative pressure chamber 108 generate negative pressure in the suction port 102 and the suction hole 1011. Tissues such as flushing liquid and bone fragments are sucked into the liquid suction chamber 103, and the crushing rotor 104 and the grinding rotor 105 are driven to rotate by turning on the drive motor 106, and the large pieces of debris entering the liquid suction chamber 103 are first crushed by the drill bit 1042 on the crushing rotor 104. Tissues such as bone are pulverized, and then the tissue such as broken bone is further ground into small particles by grinding rotor 105, so that tissue such as broken bone can be prevented from clogging the suction tube and the suction bottle; the rinsing liquid and the broken bone enter the suction bottle 2 through the catheter 203 Inside, the flushing liquid can be filtered through the filter mesh bag 206, so that the broken bone particles are trapped in the filter mesh bag 206, which facilitates the separation of the flushing liquid and the broken bone particles, and the flushing liquid is collected in the bottle body 201; The float 205 can prevent the flushing liquid collected in the suction bottle 2 from being sucked back into the suction device, thereby avoiding damage to the suction device.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (10)

1. A special suction system for arthroscopic surgery is characterized by comprising a suction apparatus (1) and a suction bottle (2);

the aspirator (1) comprises an outer shell (101) and a liquid suction cavity (103) arranged in the outer shell (101), wherein the head part and the tail part of the outer shell (101) are respectively provided with a suction inlet (102) communicated with the liquid suction cavity (103) and a negative pressure suction pipe (107);

attract bottle (2) including bottle (201) and sealed lid (202), be provided with catheter (203) and exhaust tube (204) on sealed lid (202), be provided with in bottle (201) and be used for preventing exhaust tube (204) suck the anti-suck-back float (205) of bottle (201) interior liquid backward, the one end of catheter (203) with negative pressure attracts pipe (107) to be connected, and the other end stretches into in bottle (201), the one end of exhaust tube (204) is used for being connected with outside air exhaust device, and the other end stretches into in bottle (201) with anti-suck-back float (205) are connected, anti-suck-back float (205) can be along exhaust tube (204) rebound and shelter from the oral area of exhaust tube (204) under the effect of buoyancy of the interior liquid of attraction bottle (2).

2. The special suction system for arthroscopic surgery according to claim 1, wherein the anti-suck-back floater (205) comprises a floater body (2051), the upper end of the floater body (2051) is slidably arranged on the suction tube (204), a suction opening (2052) communicated with the suction tube (204) is formed in the side wall of the floater body (2051), an upward-convex sealing plug (2053) is formed in the lower end of the floater body (2051), the sealing plug (2053) is positioned below the suction tube (204), the size of the sealing plug (2053) is matched with the size of the mouth of the suction tube (204), and the floater body (2051) can move upwards along the suction tube (204) under the action of the buoyancy of the liquid in the suction bottle (2) to enable the sealing plug (2053) to cover the mouth of the suction tube (204).

3. The special suction system for arthroscopic surgery according to claim 1, wherein a filter mesh bag (206) connected with the catheter (203) is arranged in the bottle body (201).

4. The special suction system for arthroscopic surgery according to claim 1, wherein a crushing rotor (104), a grinding rotor (105) and a driving motor (106) are arranged in the outer shell (101), the crushing rotor (104) and the grinding rotor (105) are arranged in the liquid suction cavity (103), and the driving motor (106) is connected with the crushing rotor (104) and the grinding rotor (105) and can drive the crushing rotor (104) and the grinding rotor (105) to rotate.

5. The special suction system for arthroscopic surgery according to claim 4, wherein the crushing rotor (104) comprises a rotating shaft (1041) and a drill (1042) arranged on the rotating shaft (1041), the drill (1042) is arranged towards the suction inlet (102), and the rotating shaft (1041) is connected with a driving motor (106).

6. The special suction system for arthroscopic surgery according to claim 5, wherein the drill (1042) is in clearance fit with the inner side wall of the outer shell (101), and the clearance is 2-8mm.

7. The arthroscopic surgical specific aspiration system of claim 5, wherein the drill (1042) is shuttle shaped.

8. The special suction system for arthroscopic surgery according to claim 4, wherein the front end of the crushing rotor (104) is arranged close to the suction inlet (102), the rear end of the crushing rotor is connected with the grinding rotor (105) through a connecting shaft, and the rear end of the grinding rotor (105) is connected with the driving motor (106) through another connecting shaft.

9. The special suction system for arthroscopic surgery according to claim 4, wherein the grinding rotor (105) is in clearance fit with the inner side wall of the outer shell (101), and the clearance is 1-5 mm.

10. The special suction system for arthroscopic surgery according to claim 4, characterized in that the inside of the outer shell (101) is further provided with a negative pressure cavity (108) connected with the negative pressure suction tube (107), and the negative pressure cavity (108) is communicated with the liquid suction cavity (103); the power supply control device also comprises a foot switch for controlling the power supply of the driving motor (106) to be switched on and off, and the foot switch is connected with the driving motor (106).

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