Two-channel arthroscope approach cannula

Abstract

The utility model discloses a double-channel arthroscope approach cannula, and particularly relates to the technical field of medical instruments, the double-channel arthroscope approach cannula comprises an approach end, a cannula main body and an outer end which are connected in sequence, a through approach channel is arranged in the cannula main body, a straight double-hole gasket is arranged in the approach channel, and the outer end of the cannula main body is connected with the straight double-hole gasket. The double-opening gasket divides the inlet channel into a first channel and a second channel, a sealing gasket is installed at the outer end, a circle of annular take-up ring is fixed to the edge of the outer side wall of the sealing gasket, a plurality of take-up grooves extending inwards are formed in the edge of the take-up ring, and a rotatable take-up mechanism is installed at the outer end of each take-up groove. In the operation process, the suture lines can be conveniently arranged and distinguished, the disorder and confusion phenomena of the operation suture lines are reduced, meanwhile, the two channels can respectively pass through an arthroscope and an instrument, operation is convenient, mutual interference is avoided, the operation efficiency is improved, and the error rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and more specifically to a double-channel arthroscopic access sleeve. Background Art

[0002] In arthroscopic surgery, surgical instruments such as arthroscopes, planers, grinding heads, suture needles, and surgical forceps enter the joint directly through the arthroscopic access cannula. In a single operation, multiple instruments or the arthroscope and instruments often need to be inserted at the same time. The former is often operated separately, and after using one instrument, it is pulled out and another instrument is used; or they are inserted at the same time and operated carefully, and mutual interference between instruments must be carefully avoided during the operation. The latter uses the arthroscope to observe first, then pulls out the arthroscope and inserts the instrument for operation; or another channel is cut to place the arthroscope for observation separately. The traditional arthroscopic access cannula has only one channel, and it is easy to collide with each other or use the wrong tools when the endoscope and surgical tools or multiple tools are inserted at the same time. Therefore, the surgical process requires time and effort to prevent the instruments from interfering with each other or pulling out and inserting the instruments separately, which increases unnecessary surgical time and operation risks. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a double-channel arthroscopic access cannula, comprising an access end, a cannula body and an outer end connected in sequence, a penetrating access channel is opened inside the cannula body, a straight double-opening gasket is installed inside the access channel, the double-opening gasket divides the access channel into a first channel and a second channel, a sealing gasket is installed at the outer end, a circle of annular wire collection ring is fixed at the edge of the outer side wall of the sealing gasket, a plurality of wire collection grooves extending inwardly are opened at the edge of the wire collection ring, and a rotatable wire collection mechanism is installed at the outer end of the wire collection groove.

[0004] In a preferred embodiment, a diaphragm for blocking and sealing is installed in the middle of the access channel, and the diaphragm is fixed to the middle of the double-opening gasket and is integrated with the double-opening gasket.

[0005] In a preferred embodiment, triangular grooves are provided on the spacers above and below the double-opening gasket, and a movable sleeve gasket is sleeved on the outside of the sleeve body.

[0006] In a preferred embodiment, a medicine entry tube is installed on the sleeve body close to the outer end, and the interior of the medicine entry tube is communicated with the interior of the access channel.

[0007] In a preferred embodiment, two upper and lower through holes are formed on the sealing gasket, and the two through holes are respectively connected to the first channel and the second channel.

[0008] In a preferred embodiment, the wire-taking mechanism includes a limit rod attached to the outer wall of the wire-taking ring, one end of the limit rod is equipped with a rotating shaft inserted into the limit ring and the other end is equipped with a first magnet, the limit rod is flipped and rotated on both sides of the wire-taking groove through the rotating shaft, and a second magnet and a third magnet fixed on the outer wall of the wire-taking ring are respectively arranged on both sides of the wire-taking groove.

[0009] Technical effects and advantages of the utility model:

[0010] The utility model facilitates the arrangement and distinction of sutures during surgery, reduces the clutter and confusion of sutures, and at the same time, the dual channels can pass through the arthroscope and instruments respectively, which is convenient for operation without interfering with each other, thereby improving surgical efficiency and reducing the error rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0013] Figure 3 This is a schematic diagram of the front view structure of the access end of the utility model;

[0014] Figure 4 For the utility model Figure 3 Schematic diagram of the cross-section structure at AA in the middle;

[0015] Figure 5 For the utility model Figure 2 Schematic diagram of the detailed structure at B in the middle.

[0016] Explanation of the accompanying drawings: 1 access end, 2 casing body, 3 outer end, 4 access channel, 5 double-opening gasket, 6 first channel, 7 second channel, 8 sealing gasket, 9 wire-taking ring, 10 wire-taking groove, 11 wire-taking mechanism, 12 spacer, 13 triangular slot, 14 casing gasket, 15 medicine entry tube, 16 through hole, 17 limit rod, 18 first magnet, 19 second magnet, 20 third magnet, 21 rotating shaft. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0018] like Figure 1-5 The double-channel arthroscopic access cannula shown in the figure has an access end 1, a cannula body 2 and an outer end 3 connected in sequence, a through access channel 4 is provided inside the cannula body 2, a straight double-opening gasket 5 is installed inside the access channel 4, the double-opening gasket 5 divides the access channel 4 into a first channel 6 and a second channel 7, a sealing gasket 8 is installed at the outer end 3, a ring-shaped wire collection ring 9 is fixed at the edge of the outer side wall of the sealing gasket 8, a plurality of wire collection grooves 10 extending inwardly are provided at the edge of the wire collection ring 9, and a rotatable wire collection mechanism 11 is installed at the outer end 3 of the wire collection groove 10;

[0019] Among them, the access end 1, the sleeve body 2, the outer end 3, the double-opening gasket 5 and the sealing gasket 8 are all made of medical grade silicone.

[0020] The double-hole gasket 5 divides the access channel 4 into a first channel 6 and a second channel 7. The double channels can respectively pass through an arthroscope and instruments, which is convenient for operation without interfering with each other, thereby improving surgical efficiency and reducing the error rate.

[0021] A barrier seal 12 is installed in the middle of the inlet channel 4. The barrier 12 is fixed to the middle of the double-opening gasket 5 and is integrated with the double-opening gasket 5.

[0022] The sleeve pad 14 can be put on the sleeve body 2 by the doctor during the operation as needed to prevent the arthroscopic access sleeve from moving up and down on the surface of human skin.

[0023] A triangular slot 13 is formed on the spacer 12 located above and below the double-opening gasket 5, and a movable casing gasket 14 is sleeved on the outside of the casing body 2;

[0024] The thickness of the septum 12 is 1-2 mm, and the triangular slot 13 is used to pass various instruments and can also block the outflow of physiological saline during surgery to form a certain negative pressure in the cavity.

[0025] A medicine entry tube 15 is installed on the sleeve body 2 near the outer end 3, and the interior of the medicine entry tube 15 is connected with the interior of the access channel 4;

[0026] The medicine inlet tube 15 facilitates the delivery of the medicine to be added from the medicine inlet tube 15 and the access channel 4 to the medicine application site.

[0027] The sealing gasket 8 is provided with two upper and lower through holes 16, which are connected to the first channel 6 and the second channel 7 respectively;

[0028] The diameter of the through hole 16 is 3 mm, which is slightly smaller than the outer diameter of a general instrument. Since the silicone material has a certain flexibility, it can pass surgical instruments and prevent water in the cavity from overflowing.

[0029] Based on the above, when the doctor inserts the arthroscopic access cannula into the joint cavity, the length of the arthroscopic access cannula is greater than the length of the human tissue channel, which will cause the cannula body 2 to move up and down in the channel. A cannula pad 14 is used to be placed on the cannula body 2 and pad the outer skin of the human body to prevent the access cannula from moving up and down.

[0030] The wire-taking mechanism 11 includes a limiting rod 17 attached to the outer wall of the wire-taking ring 9, one end of the limiting rod 17 is equipped with a rotating shaft 21 inserted into the limiting ring and the other end is equipped with a first magnet 18. The limiting rod 17 is flipped and rotated on both sides of the wire-taking groove 10 through the rotating shaft 21, and a second magnet 19 and a third magnet 20 fixed on the outer wall of the wire-taking ring 9 are respectively arranged on both sides of the wire-taking groove 10.

[0031] Based on the above, a plurality of overflow glue grooves are provided on the end surface of the outer end 3 , and the sealing gasket 8 is adhered to the outer end 3 by means of glue.

[0032] Among them, the wire taking-up ring 9 is installed on the outside of the sealing gasket 8. In actual application, the sutures at multiple femoral joints can be arranged and placed in turn through several wire taking-up grooves 10, and the wire taking-up mechanism 11 is used to limit them, so as to organize and distinguish the sutures and reduce the clutter and confusion of surgical sutures.

[0033] Furthermore, after the suture thread is placed inside the wire taking-up groove 10, the limit rod 17 can be rotated so that it can be flipped and rotated on the wire taking-up ring 9 through the rotating shaft 21, so that the limit rod 17 is horizontally placed on the outer end 3 of the wire taking-up groove 10, and the first magnet 18 at the end of the limit rod 17 is adsorbed and fixed with the second magnet 19 on the wire taking-up ring 9, so that the suture thread is limited inside the wire taking-up groove 10.

[0034] When the suture thread needs to be moved for suturing, flip the limit rod 17 to rotate it through the rotating shaft 21, flip the limit rod 17 to the other side, the first magnet 18 at the end of the limit rod 17 is adsorbed by the third magnet 20 on the take-up ring 9, and the entire take-up groove 10 is in a smooth state, and the suture thread can be taken out from the take-up groove 10 for sorting or suturing.

[0035] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. Double channel arthroscopic access cannula, characterized in that: The entry end, the casing body and the outer end are connected in sequence, a penetrating entry channel is opened inside the casing body, a straight double-opening gasket is installed inside the entry channel, the double-opening gasket divides the entry channel into a first channel and a second channel, a sealing gasket is installed at the outer end, a circle of annular wire collection ring is fixed at the edge of the outer wall of the sealing gasket, a plurality of wire collection grooves extending inward are opened at the edge of the wire collection ring, and a rotatable wire collection mechanism is installed at the outer end of the wire collection groove.

2. The dual-channel arthroscopic access cannula according to claim 1, characterized in that: A diaphragm for blocking and sealing is installed in the middle of the access channel. The diaphragm is fixed to the middle of the double-opening gasket and is integrated with the double-opening gasket.

3. The dual-channel arthroscopic access cannula according to claim 2, characterized in that: Triangular slots are provided on the spacers above and below the double-opening gasket, and a movable sleeve gasket is sleeved on the outside of the sleeve body.

4. The dual-channel arthroscopic access cannula according to claim 1, characterized in that: A medicine entry tube is installed on the sleeve body close to the outer end, and the interior of the medicine entry tube is communicated with the interior of the access channel.

5. The dual-channel arthroscopic access cannula according to claim 1, characterized in that: The sealing gasket is provided with two upper and lower through holes, which are respectively connected with the first channel and the second channel.

6. The dual-channel arthroscopic access cannula according to claim 1, characterized in that: The wire-reeling mechanism includes a limit rod attached to the outer wall of the wire-reeling ring, one end of the limit rod is equipped with a rotating shaft plugged into the limit ring and the other end is equipped with a first magnet, the limit rod is flipped and rotated on both sides of the wire-reeling groove through the rotating shaft, and a second magnet and a third magnet fixed on the outer wall of the wire-reeling ring are respectively arranged on both sides of the wire-reeling groove.

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