CN212308611U - Autogenous cutting sleeve pipe connecting device - Google Patents

Abstract

The utility model relates to a autogenous cutting bushing apparatus, including pedestal and connecting pipe. The seat body is provided with a first port, a second port and a flow guide cavity for communicating the first port with the second port, and the tail end of the connecting pipe facing the second port is provided with a connecting port. The connecting pipe can slide to expose any one of the second port and the connecting port. The seat body can be communicated with devices such as a voice valve, a resuscitation air bag and the like through the first port. Then, if the size of the interface of the autogenous cutting sleeve is the same as or approximately the same as that of the second port, the connecting pipe is retracted and the second port is exposed; if the size of the connector of the autogenous cutting cannula is the same as or approximately the same as the size of the connector, the connecting tube is extended out to expose the connector. Therefore, the autogenous cutting sleeve connecting device can be smoothly connected with the autogenous cutting sleeve, and then the devices such as a voice valve, a resuscitation air bag and the like are communicated with the autogenous cutting sleeve through the diversion cavity. Therefore, the autogenous cutting sleeve connecting device can be used for communicating autogenous cutting sleeves with different calibers, and is more convenient to use.

Description

Autogenous cutting sleeve pipe connecting device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to autogenous cutting bushing apparatus.

Background

Tracheotomy is a clinical and common first-aid technique, and a tracheotomy cannula needs to be inserted into an incision after tracheotomy to realize air conduction. During intubation, it is also often necessary to connect the tracheostomy cannula to a speech valve, resuscitation balloon, or the like, to administer the corresponding therapy.

However, autogenous cutting cannulas come in a variety of different sizes, with autogenous cutting cannulas of different sizes having different port diameters. When the interface caliber of the tracheostomy tube is not matched with the calibers of the voice valve, the resuscitation air bag and other devices, the tracheostomy tube cannot be smoothly connected, and therefore relevant treatment cannot be carried out. Therefore, the existing tracheostomy cannula has the problem of inconvenient use.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a connection device for an autogenous cutting cannula, which is convenient for the autogenous cutting cannula to be used, aiming at the problem that the existing autogenous cutting cannula is inconvenient to use.

A autogenous cutting bushing connecting device, includes pedestal and connecting pipe, the pedestal has first port, second port and communicates the first port with the water conservancy diversion chamber of second port, the connecting pipe with the pedestal cup joints mutually and follows the axial slidable of second port, the connecting pipe towards the end of second port has the connector, just the connecting pipe slidable is to making any one exposes in second port and the connector.

In one embodiment, the number of the connecting pipes is multiple, the connecting pipes are sequentially sleeved on the seat body, the pipe diameters of the connecting pipes are gradually reduced or increased, and the connecting port of each connecting pipe can be exposed.

In one embodiment, the connecting tube includes a first connecting tube and a second connecting tube, the first connecting tube is sleeved on the seat body, the second connecting tube is sleeved on the first connecting tube, the first connecting tube and the second connecting tube respectively have a first connecting port and a second connecting port, and a diameter of the second connecting port is larger than a diameter of the first connecting port.

In one embodiment, the outer wall of the seat body is provided with a limit flange, and the first connecting pipe can slide to abut against the limit flange and expose the first connecting port.

In one embodiment, the outer wall of the seat body is provided with a support lug, and the support lug and the limit flange are arranged at intervals along the axial direction of the seat body.

In one embodiment, support plates are arranged on two sides of the first connecting pipe, a guide groove extending along the axial direction of the first connecting pipe is formed in each support plate, the second connecting pipe is located between each support plate and the outer wall of the first connecting pipe, and a sliding protrusion in sliding fit with the guide groove is formed in the outer wall of the second connecting pipe.

In one embodiment, the base and the connecting tube can be elastically deformed along a radial direction, so that the apertures of the second port and the connecting port can be adjusted.

In one embodiment, the device further comprises a blocking piece, wherein the blocking piece is detachably arranged on the seat body and covers the first port, and the blocking piece is provided with an opening-adjustable exhaust port.

In one embodiment, the closure comprises:

the body is of a hollow cylindrical structure with openings at two ends, the body can be sleeved on the seat body, the opening at one end of the body forms the exhaust port, and a first half blocking piece is arranged in the exhaust port;

the rotating cap is sleeved on the body and rotates around the body in the axial direction, the rotating cap is provided with a second half separation blade, and the rotating cap can rotate to enable the second half separation blade to be overlapped with or staggered with the first half separation blade.

In one embodiment, the outer wall of the body is provided with a hanging lug, and the hanging lug is connected with the seat body through a flexible connecting piece.

The autogenous cutting sleeve connecting device can communicate the seat body with devices such as a voice valve and a resuscitation air bag through the first port. Then, if the size of the interface of the autogenous cutting sleeve is the same as or approximately the same as that of the second port, the connecting pipe is retracted and the second port is exposed; if the size of the connector of the autogenous cutting cannula is the same as or approximately the same as the size of the connector, the connecting tube is extended out to expose the connector. Therefore, the autogenous cutting sleeve connecting device can be smoothly connected with the autogenous cutting sleeve, and then the devices such as a voice valve, a resuscitation air bag and the like are communicated with the autogenous cutting sleeve through the diversion cavity. Therefore, the autogenous cutting sleeve connecting device can be used for communicating autogenous cutting sleeves with different calibers, and is more convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a autogenous cutting casing connecting device according to a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of the autogenous cutting cannula connection of FIG. 1;

FIG. 3 is a schematic view of the autogenous cutting cannula connection apparatus shown in FIG. 2 without a closure;

FIG. 4 is a schematic structural view of another use state of the tracheostomy cannula connection device of FIG. 3;

FIG. 5 is a schematic structural view of the tracheostomy cannula connection device of FIG. 3 in yet another use configuration;

FIG. 6 is a schematic view of the closure of the tracheostomy cannula connection device of FIG. 1;

fig. 7 is a schematic view of another state of use of the closure of fig. 6.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the 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 "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, 2 and 3, a autogenous cutting casing connecting device 100 according to a preferred embodiment of the present invention includes a base 110 and a connecting pipe 120. Wherein:

the housing 110 has a first port 101, a second port 102, and a flow guide cavity (not shown) connecting the first port 101 and the second port 102. The first port 101 is used to communicate with a voice valve, resuscitation balloon, or the like. The size of the interface is fixed because devices such as voice valves, resuscitation balloons and the like need to meet specific industry standards. Accordingly, the first port 101 may be sized according to the industry standards described above to enable the first port 101 to be easily interfaced with a voice valve, resuscitation balloon, or the like.

The base 110 may be made of metal, plastic, or resin. The seat body 110 is generally a hollow cylindrical structure with two open ends, and the first port 101 and the second port 102 are respectively located at two ends of the seat body 110. Obviously, the seat body 110 may also be in an L shape, a Z shape, or other shapes, and only the first port 101 and the second port 102 are required to be connected to each other.

The connecting tube 120 is sleeved with the holder body 110 and is slidable along the axial direction of the second port 102. Specifically, the connecting tube 120 may be inserted into the seat body 110 to form an inner sleeve, or may be sleeved outside the seat body 110 to form an outer sleeve. The connecting tube 120 in this embodiment is sleeved outside the seat body 110. The end of the connection tube 120 facing the second port 102 has a connection port 201, and the connection tube 120 is slidable to expose either the second port 102 or the connection port 201.

Wherein, the connecting tube 120 is slid to extend out relative to the base 110, so as to expose the connecting port 201; and sliding the connecting tube 120 to retract relative to the base 110 exposes the second port 102. Because the socket joint needs to be realized, the pipe diameter of the connecting pipe 120 is different from that of the seat body 110, and the connecting port 201 and the second port 102 also have different calibers.

The second port 102 and the connection port 201 can be connected with the tracheostomy cannula. When the voice valve, the resuscitation air bag and other devices need to be communicated with the tracheostomy cannula for related treatment, the seat body 110 can be communicated with the voice valve, the resuscitation air bag and other devices through the first port 101. Then, the second port 102 or the connection port 201 having the same or substantially the same size as the connection port of the tracheostomy cannula is selected through the sliding connection tube 120 to realize the butt joint, so that the tracheostomy cannula connection device 100 can be smoothly connected with the tracheostomy cannula, and further, the device such as the voice valve, the resuscitation air bag and the like is communicated with the tracheostomy cannula through the diversion cavity.

As described above, since the connection port 201 and the second port 102 have different diameters, the above-described tracheostomy cannula connection device 100 can communicate at least with two kinds of tracheostomy cannulas having different diameters, so that the use of the tracheostomy cannulas is facilitated.

However, there are many more than two sizes of tracheostomy cannula. For example, the tracheostomy cannula commonly used in clinic includes three specifications, the mouth of which is approximately 11 mm, 13.5 mm and 15 mm in diameter.

Specifically, in this embodiment, the connecting pipes 120 are multiple, the connecting pipes 120 are sequentially sleeved on the base 110, the pipe diameters of the connecting pipes are gradually decreased or increased, and the connecting port 201 of each connecting pipe 120 can be exposed.

Each of the connection pipes 120 is extendable and retractable so that the connection port 201 at the end thereof is exposed. Therefore, when the autogenous cutting sleeve connecting device 100 is used for being connected with an autogenous cutting sleeve, the number of selectable connecting ports 201 with different calibers is increased, so that the autogenous cutting sleeve connecting device can be matched with more autogenous cutting sleeves with different specifications, and the convenience of the autogenous cutting sleeve in the using process is further improved.

Obviously, the simplest case is that the tracheostomy cannula connection device 100 includes only one connection tube 120. At this time, the autogenous cutting cannula connecting device 100 can be adapted to more autogenous cutting cannulas of two different specifications, and the convenience of use can also be improved to a certain extent.

Specifically, in the present embodiment, the base 110 and the connecting tube 120 can be elastically deformed along the radial direction, so that the apertures of the second port 102 and the connecting port 201 can be adjusted.

The base 110 and the connection pipe 120 may be integrally made of a material having a certain elasticity, such as resin, plastic, rubber, etc., so that the second port 102 and the connection port 201 can be opened by an external force to increase the diameter, and can be restored when the external force disappears. Alternatively, the main structure of the seat 110 and the connection pipe 120 may be made of a rigid material, such as metal, and a section of pipe joint formed by rubber, plastic, etc. may be spliced at the end of the main structure, and the second port 102 and the connection port 201 are formed at the end of the pipe joint. In this way, the aperture of the second port 102 and the aperture of the connection port 201 can be adjusted.

Due to errors in the machining process, the interface caliber of the autogenous cutting sleeve may fluctuate within a certain range, rather than being strictly equal to the standard size. For example, a tracheostomy cannula having a 11 mm gauge mouth may actually have a mouth diameter of between 10.8 mm and 11.2 mm. Due to the fact that the calibers of the second port 102 and the connector 201 are adjustable, the calibers of the second port 102 and the connector 201 can be correspondingly adjusted along with the fluctuation of the interface calibers of the autogenous cutting sleeve, and therefore the autogenous cutting sleeve connecting device 100 can be better in butt joint with the autogenous cutting sleeve.

In this embodiment, the connection tube 120 includes a first connection tube 121 and a second connection tube 122, the first connection tube 121 is sleeved on the seat body 110, the second connection tube 122 is sleeved on the first connection tube 121, the first connection tube 121 and the second connection tube 122 respectively have a first connection port 2011 and a second connection port 2012, and an aperture of the second connection port 2012 is greater than an aperture of the first connection port 2011.

As mentioned above, there are generally three specifications of tracheostomy cannula commonly used in clinic, so the tracheostomy cannula connection device 100 in this embodiment includes two connection tubes 120 with different tube diameters. Moreover, the second port 102, the first connection port 2011 and the second connection port 2012 can be respectively used for being connected with the ports of the autogenous cutting cannulas with three different specifications. Therefore, the autogenous cutting sheath connecting apparatus 100 does not complicate the structure too much while satisfying most use scenarios.

As shown in fig. 2 and 3, when the tracheostomy cannula to be connected has the smallest diameter, the first connecting tube 121 and the second connecting tube 122 are both retracted to expose the second port 102; as shown in fig. 4, when the tracheostomy cannula to be connected is of the second largest diameter, the first connection tube 121 is extended and the second connection tube 122 is retracted to expose the first connection port 2011; as shown in fig. 5, when the autogenous cutting cannula to be connected has a maximum caliber, the second connection pipe 122 extends out to expose the second connection port 2012.

Further, in the present embodiment, the outer wall of the seat body 110 is provided with a limit flange 111, and the first connecting tube 121 can slide to abut against the limit flange 111 and expose the first connecting port 2011.

The limiting flange 111 is used for limiting the sliding range of the first connecting pipe 121 and preventing the first connecting pipe 121 from falling off from the end of the holder body 110 provided with the second port 102. Specifically, a stop ring 1211 is disposed at an end of the first connection tube 121 away from the first connection port 2011. The stop collar 1211 is located on a side of the stop flange 111 facing away from the second port 102, and an inner diameter of the stop collar 1211 is smaller than an outer diameter of the stop flange 111. Therefore, when the first connection pipe 121 is extended to a certain extent, the stopper ring 1211 abuts on the stopper flange 111, thereby achieving the stopper.

Furthermore, in this embodiment, the outer wall of the seat body 110 is provided with a support lug 112, and the support lug 112 and the position-limiting flange 1 are arranged at an interval along the axial direction of the seat body 110.

The support lug 112 is generally formed integrally with the base 110, and a mounting hole (not shown) is formed on the support lug 112, so that the tracheostomy cannula connection device 100 can be mounted and fixed through the support lug 122. In addition, the support lug 112 can also limit the sliding range of the first connecting tube 121 to prevent the first connecting tube 121 from falling off from the end of the seat body 110 provided with the first port 101.

In this embodiment, support plates 1212 are disposed on two sides of the first connection pipe 121, a guide groove 1213 extending along an axial direction of the first connection pipe 121 is formed on the support plate 1212, the second connection pipe 122 is located between the support plate 1212 and an outer wall of the first connection pipe 121, and a sliding protrusion 1221 slidably engaged with the guide groove 1213 is disposed on an outer wall of the second connection pipe 122.

Specifically, the support plates 1212 may be two and are respectively located at both sides of the first connection tube 121. The support plate 1212 may be a bar-shaped plate-shaped structure extending in the same direction as the axial direction of the first connection tube 121. The supporting plate 1212 may be integrally formed with the stop ring 1211, or may be fixed to both sides of the stop ring 1211 by welding. The guide groove 1213 cooperates with the sliding projection 1221 to limit the sliding range of the second connection pipe 122, thereby preventing the second connection pipe 122 from being detached from the first connection pipe 121.

In the clinical application of tracheotomy, after the patient's condition is stable and the respiratory muscle function is recovered, the tracheostomy cannula needs to be pulled out at a proper time. However, prior to extubation, a blockage training must be performed to allow the patient to gradually adapt to spontaneous breathing. The pipe blocking training usually adopts progressive pipe blocking, namely the state of the air outlet hole of the autogenous cutting sleeve pipe is gradually transited from half blocking to full blocking, so that the air flow in the autogenous cutting sleeve pipe is gradually reduced. At present, medical staff generally adopt self-made cork stoppers, rubber plugs, cotton balls and the like to perform tube plugging operation, so that the preparation is complicated, and the problems of easy falling and suction, incomplete disinfection, easy pollution and the like exist.

In order to solve the above problem, please refer to fig. 1 and fig. 2 again, specifically, in the present embodiment, the tracheostomy cannula connection device 100 further includes a plugging member 130, the plugging member 130 is detachably mounted on the base 110 and covers the first port 101, and the plugging member 130 has an exhaust opening 301 with an adjustable opening degree.

The plugging member 130 may be mounted at one end of the base 110 where the first port 101 is disposed in a threaded manner, or may be mounted with the base 110 in other manners such as an interference fit manner. When the tube plugging training is performed, the autogenous cutting casing connecting device 100 is firstly butted with the autogenous cutting casing, so that the exhaust port 301 of the plugging piece 130 can be used as the air outlet of the autogenous cutting casing. Then, by adjusting the opening degree of the exhaust port 301, the air flow rate in the tracheostomy tube can be adjusted.

When the tracheostomy cannula needs to be connected with devices such as a voice valve and a resuscitation air bag to perform corresponding treatment, the plugging piece 130 is directly detached from the base body 110, so that the first port 101 is exposed.

Referring to fig. 6 and fig. 7, in the present embodiment, the plugging member 130 includes a body 131 and a screw cap 132. Wherein:

the body 131 is a hollow cylindrical structure with two open ends, and can be sleeved on the base 110. The body 131 may be made of the same material as the base 110, and may be made of metal, plastic, resin, etc. The inner wall of the body 131 may also form an internal thread, and the outer wall of the seat body 110 may form a corresponding external thread, so that the body 131 may be installed on the seat body 110 in a thread-fitting manner. An opening at one end of the body 131 forms an exhaust port 301, and a first half baffle 1311 is arranged in the exhaust port 301. The first half block 1311 is generally welded to the inner wall of the exhaust port 301, and blocks half of the flow area of the exhaust port 301.

Specifically, in the present embodiment, the body 131 is cylindrical, and the exhaust port 301 is circular, so the first half block 1311 is semicircular.

The screw cap 132 is sleeved on the body 131 and is rotatable in the axial direction. Specifically, the screw cap 132 is annular and matches with the contour of the main body 131, so that the screw cap 132 can be sleeved on the end of the main body 131 provided with the exhaust port 301. The screw cap 132 has a second half flap 1321. Wherein second half flap 1321 is generally identical to first half flap 1311. Also, the screw cap 132 can be rotated to overlap or misalign the second half flap 1321 with the first half flap 1311.

When the second half flap 1321 overlaps the first half flap 1311, the exhaust port 301 is still half open and the tracheostomy cannula is in a half blocked state; when the second half flap 1321 is completely offset from the first half flap 1311, the exhaust port 301 is closed and the tracheostomy cannula is fully blocked. During the pipe blockage training, the autogenous cutting sleeve pipe can be switched between a half-blockage state and a full-blockage state in any state by rotating the rotary cap 132. Therefore, the pipe blocking training is simple to operate, the efficiency is improved, and the problems of pollution and the like can be avoided.

Further, in the present embodiment, a hanging lug 1312 is disposed on an outer wall of the body 131, and the hanging lug 1312 is connected to the seat body 110 through a flexible connecting member (not shown).

The flexible connecting piece can be a hanging rope, a ring, a chain and the like. Specifically, the hanging lug 1312 can be connected with the supporting lug 112 on the seat body 110 through a connecting piece. When the plugging member 130 is detached from the seat body 110, the connecting member can ensure that the plugging member 130 is always connected with the seat body 110, thereby preventing the plugging member 130 from being difficult to find in the next pipe plugging training after falling.

The tracheostomy cannula connection device 100 may be configured to communicate the housing 110 with a speech valve, resuscitation bag, etc. via the first port 101. Then, if the size of the interface of the tracheostomy cannula is the same or substantially the same as the size of the second port 102, the connection tube 120 is retracted and the second port 102 is exposed; if the size of the port of the tracheostomy cannula is the same or substantially the same as the size of the connection port 201, the connection tube 120 is extended to expose the connection port 201. Therefore, the autogenous cutting sleeve connecting device can be smoothly connected with the autogenous cutting sleeve, and then the devices such as a voice valve, a resuscitation air bag and the like are communicated with the autogenous cutting sleeve through the diversion cavity. Therefore, the autogenous cutting casing pipe connecting device 100 can communicate with autogenous cutting casing pipes with different calibers, and is more convenient to use.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A autogenous cutting bushing connecting device, characterized by, including pedestal and connecting pipe, the pedestal has first port, second port and communicates the first port with the water conservancy diversion chamber of second port, the connecting pipe with the pedestal cup joints and slidable along the axial of second port, the connecting pipe has the connector towards the end of second port, and the connecting pipe can slide to make any one in second port and the connector expose.

2. The autogenous cutting casing pipe connecting device of claim 1, wherein there are a plurality of connecting pipes, the connecting pipes are sequentially sleeved on the base body and the pipe diameters are gradually decreased or increased, and the connecting port of each connecting pipe can be exposed.

3. The autogenous cutting cannula connecting device as claimed in claim 1, wherein the connecting tube includes a first connecting tube and a second connecting tube, the first connecting tube is sleeved on the base, the second connecting tube is sleeved on the first connecting tube, the first connecting tube and the second connecting tube respectively have a first connecting port and a second connecting port, and the caliber of the second connecting port is larger than that of the first connecting port.

4. The autogenous cutting cannula connection device of claim 3, wherein the outer wall of the seat body is provided with a stop flange, the first connection tube being slidable into abutment with the stop flange and exposing the first connection port.

5. The autogenous cutting sleeve connecting device of claim 4, characterized in that the outer wall of the seat body is provided with lugs, and the lugs and the limit flanges are arranged at intervals along the axial direction of the seat body.

6. The autogenous cutting bushing connecting device of claim 3, wherein the first connecting pipe is provided with support plates at both sides thereof, the support plates are provided with guide grooves extending in the axial direction of the first connecting pipe, the second connecting pipe is located between the support plates and the outer wall of the first connecting pipe, and the outer wall of the second connecting pipe is provided with sliding protrusions slidably engaged with the guide grooves.

7. The autogenous cutting cannula connection device of claim 1, wherein the seat and the connection tube are elastically deformable in a radial direction so that the diameters of the second port and the connection port are adjustable.

8. The autogenous cutting cannula connection apparatus of any one of claims 1 to 7, further comprising a block piece detachably mounted to the housing and covering the first port, the block piece having an exhaust port with an adjustable degree of opening.

9. The autogenous cutting cannula connection apparatus of claim 8, wherein the block piece comprises:

the body is of a hollow cylindrical structure with openings at two ends, the body can be sleeved on the seat body, the opening at one end of the body forms the exhaust port, and a first half blocking piece is arranged in the exhaust port;

the rotating cap is sleeved on the body and rotates around the body in the axial direction, the rotating cap is provided with a second half separation blade, and the rotating cap can rotate to enable the second half separation blade to be overlapped with or staggered with the first half separation blade.

10. The autogenous cutting cannula connection device of claim 9, wherein the outer wall of the body is provided with a lug, and the lug is connected with the seat body through a flexible connecting piece.

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