Arthroscopic surgical retractable metal working cannula

Abstract

The application discloses a joint mirror surgery reusable metal working sleeve, relates to the technical field of medical devices, and has the technical scheme as follows: a needle body, a handle head one and a pipe body are included; the bottom of the handle head one is detachably connected with one end of the pipe body; the middle part of the handle head one is provided with a movable channel one in the height direction; the movable channel one is connected with the pipe body; a control gate valve is arranged on the outer side wall of the handle head one; the control gate valve is arranged in the movable channel one by penetrating the side wall thickness of the handle head one; a water inlet pipe is detachably connected with the outer side wall of the end of the pipe body close to the handle head one; a camera is arranged on the inner side wall of the end of the pipe body away from the handle head one; a controller is arranged on the end of the pipe body close to the handle head one; and the controller is connected with the camera by wires. In the application, a plurality of stainless steel pipes are connected in succession from top to bottom by socket connection, so that the pipe body is formed; and the end of the stainless steel pipe is moved in a movable channel two in the previous stainless steel pipe, so that the length of the pipe body is adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, more particularly, it relates to a joint mirror surgery reusable and disposable metal working sleeve. BACKGROUND

[0002] Joint mirror surgery sometimes inserts a joint mirror through a joint mirror positioning working sleeve, the joint mirror positioning working sleeve is generally composed of a sleeve and a needle core, the needle core and the sleeve are inserted into the tissue from the joint mirror approach together during use, and then the needle core is pulled out. The needle core plays a role in separating the tissue and expanding the hole, and the remaining sleeve serves as a channel for joint mirror surgery instruments to enter the operation.

[0003] The prior art patent number (CN205814359U) provides a joint mirror positioning working sleeve, which comprises a needle core, a sleeve and a guide wire, the upper and lower ends of the sleeve are communicated to form a joint mirror channel, the needle core is detachably inserted through the joint mirror channel and connected with the sleeve, the needle core is a hollow structure and forms a hollow channel, and the guide wire is detachably inserted through the hollow channel. The joint mirror positioning working sleeve is used for inserting the sleeve with the needle core into the human tissue before joint mirror surgery, and then pulling out the needle core and the guide wire together, and the sleeve is temporarily left in the human tissue to facilitate the joint mirror surgery instrument to enter the human tissue. After setting the guide wire, the guide wire can be first inserted into the human tissue, and then the needle core can be accurately inserted into the target area, so as to prevent the problems of difficult insertion of the joint mirror positioning working sleeve, position deviation and damage to the surrounding tissue, save the surgery time, and avoid unnecessary damage to the patient.

[0004] However, the length of the sleeve in the prior art is fixed, and due to different specifications, sizes and lengths of the needle core, the length of the sleeve is not suitable for normal use of the needle core; and the sleeve in the prior art is made of plastic material and is a disposable consumable, which has high cost and cannot be reused.

[0005] Therefore, the present application aims to provide a joint mirror surgery reusable and disposable metal working sleeve to solve the above-mentioned related problems. SUMMARY

[0006] The present application aims to provide a joint mirror surgery reusable and disposable metal working sleeve to solve the above-mentioned related problems.

[0007] The technical problem of the present application is solved by the following technical scheme: an arthroscopic surgery reusable metal working sleeve, comprising a needle body, a handle one and a tube body, the bottom of the handle one is detachably connected with one end of the tube body, the middle part of the handle one is provided with a movable channel one along the height direction, the top of the movable channel one is provided with an arc-shaped opening, the movable channel one is through-connected with the tube body, one outer side wall of the handle one is provided with a control gate valve, the control gate valve is arranged in the movable channel one through the side wall thickness of the handle one, the outer side wall of the end of the tube body close to the handle one is detachably connected with a water inlet pipe, the inner side wall of the end of the tube body away from the handle one is provided with a camera, the end of the tube body close to the handle one is provided with a controller, and the controller and the camera are connected by wires.

[0008] The tube body is composed of a plurality of stainless steel pipes, the side wall of each stainless steel pipe is provided with a movable channel two along the height direction of the stainless steel pipe, one end of each stainless steel pipe is arranged in the adjacent movable channel two, and the adjacent stainless steel pipes are connected in sequence from top to bottom.

[0009] The inner side wall of one end of each stainless steel pipe located in the movable channel two is provided with a limiting ring, the inner side wall of the end of each movable channel two away from the limiting ring is provided with a limiting block, and the inner side wall of each movable channel two is provided with a plurality of elastic limiting members.

[0010] By adopting the above technical scheme, the needle body is used to separate and expand the human tissue, so as to drive the tube body into the human body and establish a channel for subsequent treatment; the handle one is used for the medical staff to hold and take the tube body; the tube body is used to enter the human body and establish a treatment channel under the driving of the needle body; the movable channel one is used to make the needle body enter the tube body from the handle one, so that the tube body is sleeved outside the needle body; the control gate valve is used to control the opening and closing of the movable channel one; the water inlet pipe is used to inject medicine or cleaning liquid into the tube body, so as to clean the human tissue or the tube body, and ensure that the needle body and the treatment instrument can work better; the camera is used for the medical staff to check the end part of the tube body and the needle body in real time, so as to adjust the angle and the force; the controller is used to collect the picture of the camera and transmit it to the mobile terminal of the medical staff for checking; and the wire is used to connect the camera and the controller.

[0011] The upper end of each stainless steel pipe is connected with the lower end of the next pipe through a socket joint, so that the pipe body can enter the human body to form a channel, and the length of the pipe body can be freely changed to adapt to needles of different lengths; the pipe body is made of rigid material and can be repeatedly cleaned, disinfected and used, thereby reducing material waste; the adjacent stainless steel pipes can be retracted into the movable channel two, so that the length of the pipe body is shortened and a channel is provided for the wiring of the wire; the one end of the stainless steel pipe is limited in the movable channel two and moves back and forth, so that the stainless steel pipe is prevented from being separated from the adjacent movable channel two and the pipe body is prevented from being disconnected and affecting use; the length of the stainless steel pipe entering the adjacent movable channel two is limited by the elastic limiting piece, so that the length of the pipe body is controlled.

[0012] The wire is arranged in the movable channel two, one end of the wire penetrates the wall thickness of the side wall of the movable channel two and is connected with the camera, and the other end of the wire penetrates the wall thickness of the side wall of the movable channel two and is provided with a movable interface, and the movable interface is detachably connected with the controller.

[0013] By adopting the above technical scheme, the wire is detachably connected with the controller through the movable interface, so that the medical staff can pull and move the wire when the pipe body is retracted, thereby preventing accumulation in the movable channel two and affecting the retraction effect.

[0014] The pipe body is provided with an observation hole at the end away from the handle one.

[0015] By adopting the above technical scheme, the medical staff can observe the pillow body entering the end of the pipe body through the observation hole.

[0016] The inner wall of the bottom end of the movable channel one is provided with an inner thread one, and one end of the pipe body is provided with an outer thread one matched with the inner thread one.

[0017] By adopting the above technical scheme, the handle one and the pipe body can be replaced through the cooperation of the inner thread one and the outer thread one, so that disinfection and assembly with pipe bodies or handles of different specifications and models can be realized.

[0018] The side wall of the pipe body close to the handle one is provided with a through hole, the inner wall of the through hole is provided with an inner thread two, and the outer wall of one end of the water inlet pipe is provided with an outer thread two matched with the inner thread two.

[0019] By adopting the above technical scheme, the water inlet pipe and the pipe body can be detachably connected through the cooperation of the inner thread two and the outer thread two.

[0020] The application is further provided with: the needle body is composed of a handle two and a needle tube, the bottom of the handle two is provided with an arc-shaped inclined plate matched with the arc-shaped opening, and the length of the needle tube ranges from 5 to 15 cm.

[0021] By adopting the above technical scheme, the arc-shaped inclined plate and the arc-shaped opening are matched with each other, so that the needle tube can enter the tube body better; and the needle body has different length specifications, so that the needle body can be replaced according to the different needs of medical staff.

[0022] The application is further provided with: the inner diameters of the stainless steel tubes are the same, and the outer diameter of the top end of the stainless steel tube is 1.1 times of the outer diameter of the bottom end.

[0023] By adopting the above technical scheme, the outer diameter of the top end of the stainless steel tube is 1.1 times of the outer diameter of the bottom end, so that the outer diameter difference at the connection position of adjacent stainless steel tubes is facilitated, thereby preventing the tube body from scratching the patient when entering the patient's body.

[0024] In summary, the application has the following beneficial effects:

[0025] 1. In the application, a plurality of stainless steel tubes are connected in succession from top to bottom, thereby forming a tube body; and one end of the stainless steel tube moves in the movable channel two in the previous stainless steel tube, thereby achieving the purpose of adjusting the length of the tube body.

[0026] 2. In the application, the inner thread one is arranged on the bottom end inner wall of the movable channel one, and the outer thread one is arranged on one end of the tube body, so that the handle one and the tube body can be replaced, thereby facilitating disinfection and assembly with different specifications and models of the tube body or the handle one.

[0027] 3. The tube body is made of stainless steel, so that the tube body is durable, can be cleaned and disinfected, can be repeatedly used, and material cost is saved.

[0028] 4. The camera is arranged on one end of the tube body, and the camera and the controller are connected through wires, so that the medical staff can view the specific conditions in the tube body in real time, thereby adjusting the angle of the needle body. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure diagram of a joint mirror surgery reusable metal working sleeve in the embodiment of the application;

[0030] Figure 2 is a sectional view of a joint mirror surgery reusable metal working sleeve in the embodiment of the application;

[0031] Figure 3This is a diagram of the needle structure of a reversible metal working cannula for arthroscopic surgery according to an embodiment of the present invention;

[0032] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0033] In the diagram: 1. Needle body; 2. Handle head one; 3. Tube body; 4. Movable channel one; 5. Control gate valve; 6. Water inlet pipe; 7. Camera; 8. Stainless steel tube; 9. Movable channel two; 10. Limiting ring; 11. Limiting block; 12. Elastic limiting component; 13. Movable interface; 14. Observation hole; 15. Internal thread one; 16. External thread one; 17. Through hole; 18. Internal thread two; 19. External thread two; 20. Controller; 21. Wire; 22. Arc-shaped opening; 23. Arc-shaped inclined plate; 101. Handle head two; 102. Needle tube. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0035] Example: A reversible metal working cannula for arthroscopic surgery, such as Figures 1-4 As shown, the device includes a needle body 1, a handle head 2, and a tube body 3. The minimum inner diameter of the tube body 3 is 6 mm. The bottom of the handle head 2 is detachably connected to one end of the tube body 3. A movable channel 4 along the height direction is carved in the middle of the handle head 2. An arc-shaped opening 22 is carved in the top of the movable channel 4. The inner diameter of the movable channel 4 is 6 mm, and the inner diameter of the arc-shaped opening 22 is 1 cm. The movable channel 4 is connected to the tube body 3. A control gate valve 5 is fixedly installed on one outer side wall of the handle head 2. The control gate valve 5 selects... A rotary check valve is selected, and the control gate valve 5 is installed in the movable channel 4 through the side wall of the handle head 2. The outer side wall of the pipe body 3 near the handle head 2 is detachably connected to the water inlet pipe 6. The inner side wall of the pipe body 3 away from the handle head 2 is fixedly installed with a camera 7. The end of the pipe body 3 near the handle head 2 is fixedly installed with a controller 20. The controller 20 adopts an STM32 microcontroller with a wireless module. The controller 20 and the camera 7 are connected by a wire 21. The camera 7 is powered by the controller 20.

[0036] The pipe body 3 is composed of 3 stainless steel pipes 8. The stainless steel pipes are of different lengths, namely 3CM, 4CM and 5CM. The side walls of the 3 stainless steel pipes 8 are carved with movable channels 2 9 along the height direction of the stainless steel pipes 8. One end of the stainless steel pipe 8 is inserted into the adjacent movable channel 2 9. The 3 stainless steel pipes 8 are connected from top to bottom in sequence, and the 3 movable channels 2 9 are connected through each other.

[0037] 3 stainless steel pipes 8 are located in the inner side wall of one end of the movable channel two 9, and each is provided with a limiting ring 10; the inner side wall of the end of the movable channel two 9 away from the limiting ring 10 is fixedly installed with a limiting block 11; the inner side wall of each of the three movable channel two 9 is provided with three elastic limiting members 12, and the elastic limiting member 12 is an elastic rubber block.

[0038] One elastic limiting member 12 is fixedly installed at one end close to the limiting block 11, and through the cooperation of the elastic limiting member 12 and the limiting block 11, the stainless steel pipe 8 can be fixedly positioned when it is extended into the movable channel two 9; two elastic limiting members 12 are fixedly installed at one end away from the limiting block 11, and through the cooperation of the two elastic limiting members 12, the stainless steel pipe 8 can be fixedly positioned when it is retracted into the movable channel two 9.

[0039] In this embodiment, the needle body 1 is used to separate and expand the human tissue, so as to drive the pipe body 3 into the human body and establish a channel for subsequent treatment; the handle head one 2 is used to hold the pipe body 3 by the medical staff; the pipe body 3 is used to enter the human body and establish a treatment channel under the driving of the needle body 1; the movable channel one 4 is used to make the needle body 1 enter the pipe body 3 from the handle head one 2, so that the pipe body 3 is sleeved on the outside of the needle body 1; the control gate valve 5 is used to control the opening and closing of the movable channel one 4; the water inlet pipe 6 is used to inject medicine or cleaning liquid into the pipe body 3, so as to clean the human tissue or the pipe body 3 and ensure that the needle body 1 and the treatment instrument can work better; the camera 7 is used to enable the medical staff to view the end part of the pipe body 3 and the needle body 1 in real time, so as to adjust the angle and the force; the controller 20 is used to collect the picture of the camera 7 and transmit it to the mobile terminal of the medical staff for viewing; the wire 21 is used to connect the camera 7 and the controller 20.

[0040] The three stainless steel pipes 8 are connected in a telescopic manner from top to bottom, so as to form the pipe body 3 into the human body and change the length of the pipe body 3 freely, and adapt to the needle body 1 of different lengths; at the same time, the rigid material can be cleaned and disinfected repeatedly, reducing the waste of materials; the movable channel two 9 is used to make the adjacent stainless steel pipes 8 retract into the movable channel two 9, so as to shorten the length of the pipe body 3 and provide a channel for the wire 21; the limiting ring 10 and the limiting block 11 are used to limit the movement of the one end of the stainless steel pipe 8 in the movable channel two 9, so as to prevent the stainless steel pipe 8 from separating from the adjacent movable channel two 9, thereby affecting the use of the pipe body 3; the elastic limiting member 12 is used to limit the length of the stainless steel pipe 8 entering the adjacent movable channel two 9, so as to control the length of the pipe body 3.

[0041] The lead wire 21 is movably arranged in the movable channel two 9, one end of the lead wire 21 penetrates the side wall thickness of the movable channel two 9 and is connected with the camera 7, and the other end of the lead wire 21 penetrates the side wall thickness of the movable channel two 9 and is fixedly arranged with the movable interface 13, and the movable interface 13 is detachably connected with the controller 20.

[0042] In the embodiment, through the movable interface 13, the detachable connection with the controller 20 is facilitated, the medical staff can pull the lead wire 21 to move when the pipe body 3 is contracted, so that the accumulation in the movable channel two 9 is prevented, and the contraction effect is affected.

[0043] The pipe body 3 is drilled with an observation hole 14 at one end away from the handle head one 2, and the diameter of the observation hole 14 is 4MM.

[0044] In the embodiment, through the observation hole 14, the medical staff can observe that the pillow body enters the end of the pipe body 3.

[0045] The inner side wall of the bottom end of the movable channel one 4 is drilled with an internal thread one 15, and one end of the pipe body 3 is drilled with an external thread one 16 matched with the internal thread one 15.

[0046] In the embodiment, through the cooperation of the internal thread one 15 and the external thread one 16, the handle head one 2 and the pipe body 3 can be replaced, disinfection is facilitated, and different specifications and models of the pipe body 3 or the handle head one 2 can be assembled.

[0047] The side wall of the pipe body 3 close to the handle head one 2 is drilled with a through hole 17, the inner side wall of the through hole 17 is drilled with an internal thread two 18, and the outer side wall of one end of the water inlet pipe 6 is drilled with an external thread two 19 matched with the internal thread two 18.

[0048] In the embodiment, through the cooperation of the internal thread two 18 and the external thread two 19, the detachable connection of the water inlet pipe 6 and the pipe body 3 is facilitated.

[0049] The needle body 1 is composed of a handle head two 101 and a needle tube 102, the bottom of the handle head two 101 is drilled with an arc-shaped inclined plate 23 matched with the arc-shaped opening 22, and the length specification range of the needle body 1 is 5-15CM.

[0050] In the embodiment, through the cooperation of the arc-shaped inclined plate 23 and the arc-shaped opening 22, the needle tube 102 can better enter the pipe body 3; through different length specifications of the needle body 1, the replacement according to different needs of the medical staff is facilitated.

[0051] The inner diameters of the stainless steel pipes 8 are the same, and the outer diameter of the top end of the stainless steel pipe 8 is 1.1 times of the outer diameter of the bottom end.

[0052] By adopting the above technical scheme, the outer diameter difference at the position of the connection between adjacent stainless steel pipes 8 is facilitated by the top end outer diameter of the stainless steel pipe 8 being 1.1 times the bottom end outer diameter, thereby preventing the pipe body 3 from causing scratches to the patient when entering the patient's body.

[0053] Working principle: in use, the length of the pipe body 3 is adjusted according to the operation requirement and the specification of the needle body 1 is selected.

[0054] When adjusting the length of the pipe body 3, first, the end stainless steel pipe 8 is retracted, and the end stainless steel pipe 8 is pushed into the second movable channel 9 of the previous stainless steel pipe 8, if further adjustment is needed, the second last stainless steel pipe 8 is pushed into the previous movable channel.

[0055] After the adjustment is completed, the camera 7 is turned on by the controller 20 to start the channel establishment work.

[0056] After use, the pipe body 3 is removed from the bottom of the handle 2, and the pipe body 3, the handle 2 and the needle body 1 are taken out for disinfection and cleaning for the next use.

[0057] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A reversible metal working cannula for arthroscopic surgery, characterized in that: The device includes a needle body (1), a handle head (2), and a tube body (3). The bottom of the handle head (2) is detachably connected to one end of the tube body (3). The middle part of the handle head (2) is provided with an active channel (4) along the height direction. The top of the active channel (4) is provided with an arc-shaped opening (22). The active channel (4) is connected to the tube body (3). A control gate valve (5) is provided on one outer wall of the handle head (2). The control gate valve (5) penetrates the side wall of the handle head (2) and is installed in the active channel (4). A water inlet pipe (6) is detachably connected to the outer wall of the tube body (3) near the handle head (2). A camera (7) is provided on the inner wall of the tube body (3) away from the handle head (2). A controller (20) is provided on the end of the tube body (3) near the handle head (2). The controller (20) and the camera (7) are connected by a wire (21). The tube body (3) is composed of several stainless steel tubes (8). The side walls of several stainless steel tubes (8) are provided with movable channels two (9) along the height direction of the stainless steel tubes (8). One end of the stainless steel tube (8) is located in the adjacent movable channels two (9). Several stainless steel tubes (8) are connected from top to bottom in sequence. Several movable channels two (9) are connected through each other. Each of the stainless steel pipes (8) located in the second movable channel (9) has a limiting ring (10) on one end of its inner sidewall, a limiting block (11) on one end of the second movable channel (9) away from the limiting ring (10), and a number of elastic limiting members (12) on the inner sidewall of the second movable channel (9). The wire (21) is located in the second active channel (9). One end of the wire (21) passes through the side wall thickness of the second active channel (9) and is connected to the camera (7). The other end of the wire (21) passes through the side wall thickness of the second active channel (9) and is provided with an active interface (13). The active interface (13) is detachably connected to the controller (20). An observation hole (14) is provided at the end of the tube body (3) away from the handle head (2); The inner wall of the bottom end of the active channel (4) is provided with an internal thread (15), and one end of the tube (3) is provided with an external thread (16) that cooperates with the internal thread (15). The pipe body (3) has a through hole (17) on the side wall near the handle (2). The inner side wall of the through hole (17) has an internal thread (18). The outer side wall of one end of the water inlet pipe (6) has an external thread (19) that cooperates with the internal thread (18).

2. The arthroscopic reversible metal working cannula according to claim 1, characterized in that: The needle body (1) consists of a handle head (101) and a needle tube (102). The bottom of the handle head (101) is provided with an arc-shaped inclined plate (23) that cooperates with the arc-shaped opening (22). The length of the needle tube (102) is 5-15 cm.

3. The arthroscopic reversible metal working cannula according to claim 1, characterized in that: The stainless steel tubes (8) have the same inner diameter, and the outer diameter of the top end of the stainless steel tube (8) is 1.1 times the outer diameter of the bottom end.

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