Flushing device for joint focus part in minimally invasive surgery

Abstract

The utility model relates to a flushing device for a joint focus part in a minimally invasive surgery, which is characterized by comprising a sheath tube, a waterway assembly, an endoscope sheath main body and a locking assembly, one end of the sheath tube is arranged in an inner hole of the endoscope sheath main body and is detachably connected with the endoscope sheath main body, and the waterway assembly comprises a water valve seat, an upper water valve and a lower water valve. The water valve seat is sleeved on the periphery of the front end of the endoscope sheath body, the upper water valve and the lower water valve are mounted on two sides of the water valve seat and used for water injection and water discharge respectively, the upper water valve and the lower water valve are communicated with an inner hole of the endoscope sheath body, and a space between the inside of the sheath tube and the outer wall of the arthroscope inserted into the sheath tube forms a flushing channel. The locking assembly is arranged on the periphery of the rear end of the arthroscope sheath body, and the arthroscope handle and the arthroscope sheath body are sealed and locked through the locking assembly. According to the utility model, blood and bone debris can be synchronously cleaned during an operation, so that an operation site is always kept clean, the visual field is clear, and the operation progress and the operation quality are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of flushing devices, specifically to a kind of flushing device of joint focus site in minimally invasive surgery. BACKGROUND

[0002] In traditional joint minimally invasive surgery, endoscope is generally directly inserted into joint through skin incision to perform surgery, and bone debris will be generated in the process of bone tissue resection or repair, which will cause blurred vision in focus site and affect the progress and quality of surgery. To overcome this deficiency, a dedicated flushing channel is additionally provided in the prior art for flushing the surgical site during surgery. This not only makes the operation inconvenient, but also requires the opening of two channels, one for arthroscope to provide intraoperative images, and the other for flushing channel. Additional medical personnel are required to assist and cooperate from the side to flush the surgical site, which brings great inconvenience to the surgery. SUMMARY

[0003] The utility model aims to provide a flushing device for joint focus site in minimally invasive surgery, which can simultaneously clean blood and bone debris during surgery, keep the surgical site clean and clear vision, and effectively improve the progress and quality of surgery.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a flushing device for joint focus site in minimally invasive surgery, which is characterized by comprising a sheath tube, a waterway assembly, a mirror sheath main body and a locking assembly,

[0005] One end of the sheath tube is fitted into the inner hole of the mirror sheath main body and detachably connected thereto, and the inside of the sheath tube has an arthroscope access channel, which is in communication with the inner hole of the mirror sheath main body, for inserting the arthroscope into the arthroscope access channel through the mirror sheath main body,

[0006] The waterway assembly includes a water valve seat, an upper water valve and a lower water valve, the water valve seat is sleeved on the front end outer periphery of the mirror sheath main body, the upper water valve and the lower water valve are installed on both sides of the water valve seat for water injection and water outlet, respectively, and at the same time, the upper water valve and the lower water valve are in communication with the inner hole of the mirror sheath main body, and the space between the inside of the sheath tube and the outer wall of the arthroscope inserted into the arthroscope access channel is constructed as a flushing channel,

[0007] The locking assembly is arranged on the rear end outer periphery of the mirror sheath main body, and the arthroscope handle part is sealed and locked with the mirror sheath main body through the locking assembly.

[0008] In the technical scheme, the locking assembly comprises a locking sleeve and a lever assembly arranged on the locking sleeve, the locking sleeve is sleeved on the outer periphery of the rear end of the arthroscope sheath body, the free end of the lever assembly is in sliding fit with the arthroscope sheath body, the end of the locking sleeve is provided with pressing plates arranged symmetrically along the locking sleeve, the rear end of the arthroscope sheath body is provided with a limiting protrusion, when the limiting protrusion is matched with the limiting groove of the arthroscope handle, the lever assembly is rotated, the locking sleeve is rotated relative to the arthroscope sheath body, and the pressing plates are pressed on the outer periphery of the end of the arthroscope handle, so that the arthroscope sheath body, the locking sleeve and the arthroscope handle are sealed and locked.

[0009] In the technical scheme, the lever assembly comprises a lever inner pin, a lever spring and a lever, the outer peripheral wall of the arthroscope sheath body is provided with a locking sliding groove, the lever has an inner pin hole, the lever inner pin is arranged in the inner pin hole of the lever, and the end of the lever inner pin is arranged in the locking sliding groove of the arthroscope sheath body, the lever spring is sleeved on the outer periphery of the lever inner pin, and the two ends of the lever spring are respectively in abutment with the lever and the lever inner pin.

[0010] In the technical scheme, the inside of the locking sleeve is provided with a sealing ring for realizing sealed connection with the arthroscope handle.

[0011] In the technical scheme, a fixing nut is further arranged, the sheath pipe is detachably connected with the arthroscope sheath body through the fixing nut, and the fixing nut is located outside the water valve seat.

[0012] In the technical scheme, a lumen closer is further arranged, the rod part of the lumen closer is inserted into and penetrates through the arthroscope sheath body and the sheath pipe.

[0013] In the technical scheme, the head of the rod part of the lumen closer is in the form of a sharp head.

[0014] In the technical scheme, the front end of the arthroscope sheath body is provided with a positioning boss, and the water valve seat is sleeved on the outer periphery of the positioning boss of the front end of the arthroscope sheath body.

[0015] The positive effect of the arthroscope sheath body is that: after the irrigation device for the arthroscopic joint lesion part in the minimally invasive surgery is used, the arthroscope sheath body is connected with the arthroscope handle through the water valve seat,

[0016] One end of the sheath pipe is arranged in the inner hole of the arthroscope sheath body and detachably connected with the arthroscope sheath body, the inside of the sheath pipe has an arthroscope entering channel, the arthroscope entering channel is in communication with the inner hole of the arthroscope sheath body, and the arthroscope is inserted into the arthroscope entering channel through the arthroscope sheath body,

[0017] The water system assembly includes a water valve seat, an inlet valve, and a outlet valve. The water valve seat is fitted onto the outer periphery of the front end of the arthroscopic sheath body. The inlet and outlet valves are installed on both sides of the water valve seat for water injection and discharge, respectively. The inlet and outlet valves communicate with the inner bore of the arthroscopic sheath body. The space between the interior of the sheath tube and the outer wall of the arthroscopic endoscope inserted into the arthroscopic entry channel forms an irrigation channel.

[0018] The locking component is located on the outer periphery of the rear end of the arthroscope sheath body, and the arthroscope handle is sealed and locked to the arthroscope sheath body through the locking component.

[0019] During use, the arthroscope is first inserted into the joint through a skin incision and then into the lesion site. The arthroscope is then inserted into the channel of the arthroscope through the sheath body to reach the lesion. The arthroscope handle is positioned and connected to the sheath body, and sealed with a locking assembly. This effectively prevents water leakage from the interface, which could affect the surgery.

[0020] During the operation, the upper and lower water valves are connected to the external water inlet and outlet, respectively. The rinsing water flows into the sheath body through the upper water valve and flows into the surgical site along the rinsing channel constructed between the inner wall of the sheath and the outer wall of the arthroscope. The blood and bone fragments generated during the operation are sucked out and discharged through the lower water valve by water circulation. This invention can perform minimally invasive surgery and rinsing simultaneously and share a single surgical incision, keeping the surgical site clean and the field of vision clear at all times. It can shorten the operation time and effectively improve the progress and quality of the operation. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of one specific embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model after it is combined with the hole-closing device;

[0023] Figure 3 This is a schematic diagram of the state of this utility model after being combined with an arthroscope;

[0024] Figure 4 This is a schematic diagram of the state after the present invention is locked with the arthroscopy. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and the given embodiments, but it is not limited thereto.

[0026] like Figure 1 , 2 As shown in Figures 3 and 4, an irrigation device for joint lesions during minimally invasive surgery includes a sheath 1, a water path assembly, a sheath body 4, and a locking assembly.

[0027] One end of the sheath 1 is inserted into and detachably connected to the inner hole of the sheath body 4. The interior of the sheath 1 has an arthroscopy entry channel 11, which communicates with the inner hole of the sheath body 4, allowing the arthroscopy to be inserted into the arthroscopy entry channel 11 through the sheath body 4.

[0028] The water system assembly includes a water valve seat 3, an inlet valve 5, and a outlet valve 6. The water valve seat 3 is fitted onto the outer periphery of the front end of the arthroscopic sheath body 4. The inlet valve 5 and outlet valve 6 are installed on both sides of the water valve seat 3 for water injection and water discharge, respectively. The inlet valve 5 and outlet valve 6 are connected to the inner hole of the arthroscopic sheath body 4. The space between the interior of the sheath tube 1 and the outer wall of the arthroscopic endoscope inserted into the arthroscopic entry channel 11 forms an irrigation channel.

[0029] The locking component is located on the outer periphery of the rear end of the arthroscope sheath body 4, and the arthroscope handle is sealed and locked to the arthroscope sheath body 4 through the locking component.

[0030] like Figure 1 , 2 As shown in Figures 3 and 4, in order to achieve rapid locking of the arthroscope and prevent the arthroscope from rotating relative to the arthroscope sheath body during surgery, the locking assembly includes a locking sleeve 7 and a lever assembly provided on the locking sleeve 7. The locking sleeve 7 is fitted around the outer periphery of the rear end of the arthroscope sheath body 4, and the free end of the lever assembly slides in cooperation with the arthroscope sheath body 4. The end of the locking sleeve 7 is provided with a pressure plate 71 symmetrically arranged thereal. The rear end of the arthroscope sheath body 4 is provided with a limiting protrusion 41. When the limiting protrusion 41 engages with the limiting groove of the arthroscope handle, rotating the lever assembly causes the locking sleeve 7 to rotate relative to the arthroscope sheath body 4, and the pressure plate 71 presses against the outer periphery of the end of the arthroscope handle, thereby sealing and locking the arthroscope sheath body 4, the locking sleeve 7, and the arthroscope handle.

[0031] like Figure 3 , 4 As shown, to limit the rotational travel of the locking sleeve, the lever assembly includes a lever inner pin 8, a lever spring 9, and a lever 10. The outer peripheral wall of the sheath body 4 is provided with a locking groove 42. The lever 10 has an inner pin hole, and the lever inner pin 8 is located in the inner pin hole of the lever 10, with its end located within the locking groove 42 of the sheath body 4. The lever spring 9 is fitted around the outer periphery of the lever inner pin 8, and both ends of the lever spring 9 abut against the lever 10 and the lever inner pin 8, respectively. Specifically, the locking sleeve 7 can rotate 90° relative to the sheath body 4. In the initial state, the lever inner pin 8 is located at one end within the locking groove 42. When the locking sleeve 7 is locked to the arthroscopy handle, the lever inner pin 8 slides to the other end within the locking groove 42, causing the position of the pressure plate 71 to change and press against the outer periphery of the end of the arthroscopy handle.

[0032] likeFigure 1 , 2 As shown in Figures 3 and 4, in order to prevent gaps between the arthroscope handle and the locking sleeve, which could cause water leakage and affect the surgery, the locking sleeve 7 is provided with a sealing ring 100 inside to achieve a sealed connection with the arthroscope handle.

[0033] like Figure 1 , 2 As shown in Figures 3 and 4, in order to achieve a fixed connection between the sheath tube and the mirror sheath body and prevent the sheath tube from loosening, a fixing nut 2 is also included. The sheath tube 1 is detachably connected to the mirror sheath body 4 through the fixing nut 2.

[0034] like Figure 2 As shown, in order to prevent skin tissue from entering the sheath during the process of the sheath entering the lesion site through the skin incision, this utility model also includes a retractor 101. The rod of the retractor 101 is inserted through the rear end of the sheath body 4 and passes through the sheath body 4 and the sheath tube 1.

[0035] Furthermore, in order to make it easier for this invention to be inserted into the lesion site, the head of the rod of the closure device 101 is a pointed structure.

[0036] Furthermore, in order to achieve rapid positioning and assembly of the water valve seat and the mirror sheath body, the front end of the mirror sheath body 4 is provided with a positioning boss, the water valve seat 3 is fitted on the outer periphery of the positioning boss at the front end of the mirror sheath body 4, and the fixing nut 2 is screwed onto the mirror sheath body 4 and located on the outside of the water valve seat 3.

[0037] In use, the obturator 101 is first inserted into the sheath tube 1 through the sheath body 4, and the sheath tube 1 is locked with the obturator 101. The obturator 101, together with the sheath tube 1, is inserted into the joint through the skin incision and inserted into the lesion site. Then, the obturator 101 is removed, and the arthroscope 102 is inserted into the arthroscope entry channel 11 through the sheath body 4 into the sheath tube 1, thereby reaching the lesion site. At this time, after the limiting groove of the arthroscope handle cooperates with the limiting protrusion 41 of the sheath body 4, the lever 10 of the lever assembly is rotated, and the inner pin 8 of the lever slides along the locking groove 42 of the sheath body 4. The locking sleeve 7 rotates 90° relative to the sheath body 4, and the pressure plate 71 is pressed against the outer periphery of the end of the arthroscope handle, so that the sheath body 4, the locking sleeve 7, and the arthroscope handle are sealed and locked, which can effectively prevent water from leaking out from the interface and affecting the operation.

[0038] During the specific surgical procedure, the upper water valve 5 and the lower water valve 6 are connected to the external water inlet and the external water outlet, respectively. The rinsing water enters the sheath body 4 through the upper water valve 5 and flows into the surgical site along the rinsing channel constructed between the inner wall of the sheath tube 1 and the outer wall of the arthroscope. The blood and bone fragments generated during the operation are discharged through the lower water valve 6 through water circulation. This utility model can perform minimally invasive surgery and rinsing simultaneously and share a single surgical incision, keeping the surgical site clean and the field of vision clear at all times. This can shorten the operation time and effectively improve the progress and quality of the operation.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A flushing device for joint lesions during minimally invasive surgery, characterized in that: Includes a sheath (1), a water system assembly, a sheath body (4), and a locking assembly. One end of the sheath (1) is inserted into and detachably connected to the inner hole of the arthroscopy sheath body (4), and the interior of the sheath (1) has an arthroscopy entry channel (11), which is connected to the inner hole of the arthroscopy sheath body (4) for inserting the arthroscopy through the arthroscopy sheath body (4) into the arthroscopy entry channel (11). The water system assembly includes a water valve seat (3), an inlet valve (5), and a outlet valve (6). The water valve seat (3) is fitted around the front end of the arthroscopic sheath body (4). The inlet valve (5) and outlet valve (6) are installed on both sides of the water valve seat (3) for water injection and water discharge, respectively. The inlet valve (5) and outlet valve (6) are connected to the inner hole of the arthroscopic sheath body (4). The space between the interior of the sheath tube (1) and the outer wall of the arthroscopic endoscope inserted into the arthroscopic entry channel (11) forms a flushing channel. The locking component is located on the outer periphery of the rear end of the arthroscopic sheath body (4), and the arthroscopic handle is sealed and locked to the arthroscopic sheath body (4) through the locking component.

2. The irrigation device for joint lesions during minimally invasive surgery according to claim 1, characterized in that: The locking assembly includes a locking sleeve (7) and a lever assembly disposed on the locking sleeve (7). The locking sleeve (7) is fitted around the outer periphery of the rear end of the arthroscope sheath body (4), and the free end of the lever assembly slides in cooperation with the arthroscope sheath body (4). The end of the locking sleeve (7) is provided with a pressure plate (71) arranged symmetrically thereon. The rear end of the arthroscope sheath body (4) is provided with a limiting protrusion (41). When the limiting protrusion (41) cooperates with the limiting groove of the arthroscope handle, the lever assembly is rotated, and the locking sleeve (7) rotates relative to the arthroscope sheath body (4), and the pressure plate (71) is pressed against the outer periphery of the end of the arthroscope handle, so that the arthroscope sheath body (4), the locking sleeve (7), and the arthroscope handle are sealed and locked.

3. The irrigation device for joint lesions during minimally invasive surgery according to claim 2, characterized in that: The lever assembly includes a lever inner pin (8), a lever spring (9), and a lever (10). The outer peripheral wall of the sheath body (4) is provided with a locking groove (42). The lever (10) has an inner pin hole. The lever inner pin (8) is located in the inner pin hole of the lever (10), and its end is located in the locking groove (42) of the sheath body (4). The lever spring (9) is fitted around the outer periphery of the lever inner pin (8), and both ends of the lever spring (9) abut against the lever (10) and the lever inner pin (8), respectively.

4. The irrigation device for joint lesions during minimally invasive surgery according to claim 2, characterized in that: The locking sleeve (7) is provided with a sealing ring (100) inside for sealing connection with the arthroscopic handle.

5. The irrigation device for joint lesions during minimally invasive surgery according to claim 1, characterized in that: It also includes a fixing nut (2), the sheath tube (1) is detachably connected to the sheath body (4) by the fixing nut (2), and the fixing nut (2) is located outside the water valve seat (3).

6. The irrigation device for joint lesions during minimally invasive surgery according to claim 1, characterized in that: It also includes a pore closer (101), the rod of which is inserted through the rear end of the sheath body (4) and through the sheath tube (1).

7. The irrigation device for joint lesions during minimally invasive surgery according to claim 6, characterized in that: The head of the rod of the pore closer (101) is a pointed structure.

8. The irrigation device for joint lesions during minimally invasive surgery according to claim 1, characterized in that: The front end of the sheath body (4) is provided with a positioning boss, and the water valve seat (3) is fitted around the positioning boss at the front end of the sheath body (4).

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