Irrigation and suction device for use with tubular instruments

Abstract

The present invention relates to a flushing and suction device used in conjunction with a tubular instrument, which comprises a flushing and suction sleeve extending in the front-to-back direction and sleeved on the periphery of the tubular instrument, and a control component arranged at the rear end of the flushing and suction sleeve to control the flushing and suction sleeve to slide forward and backward relative to the tubular instrument; a cavity that passes through the sleeve wall and allows fluid to flow forward and backward is arranged; the control component comprises an annular fixing seat and an annular limiting cap inserted at the front end of the annular fixing seat and can slide forward and backward relative to the annular fixing seat; a channel for inserting the tubular instrument is arranged at the center of the annular fixing seat and the annular limiting cap; a fixing piece that matches and fixes the tubular instrument is arranged on the annular fixing seat; the annular limiting cap is sleeved on the rear end of the flushing and suction sleeve, and a connector that is connected to the rear end of the cavity and is used to connect to a negative pressure device or / and a flushing device is arranged on the side wall of the annular limiting cap. The flushing and suction device of the present invention has the advantages of wide application range and convenient operation.

Description

Technical Field

[0001] The invention relates to an irrigation and suction device used in conjunction with a tubular instrument. Background Art

[0002] Flushing or negative pressure suction is often required in some surgeries. For example, in laparoscopic surgery, bleeding is inevitable. Blood and other exudates will seriously interfere with the operator's operating field of view. The operator will not be able to see the surgical area he wants to see when observing the monitor screen. Therefore, a flushing and suction device must be used to clean the surgical area to ensure the smooth progress of the operation. The traditional reusable flushing and suction device is commonly used in surgery, and two surgical holes need to be punctured in the patient's abdomen, one for accommodating the endoscope and the other for accommodating the flushing and suction tube of the flushing and suction device, which invisibly deepens the patient's pain. In addition, in addition to laparoscopic surgery, there are some other surgeries that also require flushing or negative pressure suction. However, not all parts are suitable for the introduction of a flushing and suction tube alone, which brings difficulties to negative pressure suction. Moreover, the existing flushing and suction tubes cannot be perfectly used with various instruments. Summary of the invention

[0003] The object of the present invention is to provide a flushing and suction device which has a simple structure, a wide range of applications, is easy to operate, and can be used in conjunction with a variety of tubular instruments.

[0004] The object of the present invention is achieved through the following technical solutions: A flushing and suction device used in conjunction with a tubular instrument, comprising a flushing and suction sleeve extending in the front-to-back direction and sleeved on the periphery of the tubular instrument, and a control component arranged at the rear end of the flushing and suction sleeve to control the flushing and suction sleeve to slide forward and backward relative to the tubular instrument;

[0005] The wall of the flushing and suction sleeve is provided with a cavity which passes through from front to back and allows fluid to flow.

[0006] Compared with the prior art, the advantages of the present invention are:

[0007] 1. The flushing and suction device can be mounted on a variety of tubular medical instruments (such as endoscopes, electric hooks, snares, tissue grasping forceps, etc.). After it is combined with the tubular medical instrument, the formed instrument will be a multifunctional instrument with flushing and / or suction functions. When flushing or suction is required during surgery, the flushing and suction sleeve can be pushed forward relative to the tubular medical instrument by controlling the control component, and the front end of the tubular medical instrument is retracted into the flushing and suction sleeve. At this time, the entire device will become a flushing and suction device, and then fluid (such as liquid or gas) can be introduced into the flushing and suction sleeve according to actual needs, or negative pressure suction can be performed to remove the gas or waste liquid generated during the operation. During surgery, if flushing or negative pressure suction is not required, there is no need to push the flushing and suction sleeve forward, so the entire device can play the function of the tubular medical instrument itself. It can be seen that the flushing and suction device of the present invention has the advantages of a wide range of applications and convenient operation.

[0008] 2. The flushing and suction device can be made into a disposable item and used in conjunction with various instruments, reducing the risks of cross infection, air leakage, water leakage, and blockage.

[0009] 3. The flushing and suction device can be connected to the tubular instrument as a whole, will not occupy the limited surgical instrument channel, solve the doctor's operational problems, provide a good surgical environment, and will not cause additional pain to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of a flushing and suction device according to an embodiment of the present invention.

[0011] Figure 2 It is a schematic structural diagram of a flushing and suction device in accordance with an embodiment of the present invention used in conjunction with an endoscope.

[0012] Figure 3 It is a structural diagram of the control component of Example 1.

[0013] Figure 4 It is a disassembled diagram of the control component of the first embodiment.

[0014] Figure 5 This is a schematic diagram of the state of the flushing and suction sleeve of Example 1 when it is not pushed forward.

[0015] Figure 6 yes Figure 5 Schematic diagram of the internal structure of the state.

[0016] Figure 7 It is a schematic diagram of the internal state of the control component when the flushing suction sleeve of the first embodiment is not pushed forward.

[0017] Figure 8 This is a schematic diagram of the state of the flushing and suction sleeve of Example 1 when it is pushed forward.

[0018] Fig. 9 yes Figure 8 Schematic diagram of the internal structure of the state.

[0019] Fig.10 It is a schematic diagram of the internal state of the control component when the flushing suction sleeve of Example 1 is pushed forward.

[0020] Fig.11 It is a schematic diagram of the structure of the irrigation and suction control handle.

[0021] Fig.12 It is a schematic diagram of the structure inside the irrigation and suction control handle.

[0022] Fig.13 It is a schematic diagram of the flow direction of the fluid in the flushing suction control handle chamber after the flushing button is pressed down.

[0023] Fig.14 It is a schematic diagram of the flow direction of the fluid in the flushing suction control handle chamber after the suction button is pressed down.

[0024] Fig.15 It is a schematic diagram of the structure of the flushing and suction device according to the second embodiment of the present invention.

[0025] Fig.16 It is a structural schematic diagram of the flushing and suction device in accordance with the second embodiment of the present invention used in conjunction with an electric hook.

[0026] Fig.17 It is a structural diagram of the control component of the second embodiment.

[0027] Fig.18 It is a disassembled diagram of the control component of the second embodiment.

[0028] Fig.19 This is a schematic diagram of the state of the flushing and suction sleeve of the second embodiment when it is pushed forward.

[0029] Fig. 20 This is a schematic diagram of the state of the flushing and suction sleeve of the second embodiment when it is not pushed forward.

[0030] Explanation of reference numerals: 1 flushing and suction sleeve, 11 cavity, 12 anti-blocking hole, 2 control assembly, 21 annular fixing seat, 211 channel A, 212 protrusion, 213 slide groove, 214 through hole, 22 annular limiting cap, 221 channel B, 222 joint, 223 sliding protrusion, 231 limiting strip, 2311 block, 2312 slot, 24 return spring, 25 sealing ring, 261 holding rod, 2611 bayonet, 262 annular convex edge, 263 annular nut, 2631 channel C, 3 flushing and suction control handle, 31 chamber, 311a port, 32 flushing button, 33 suction button, 34 pressure regulating nut, 4 flushing tube, 5 suction tube, 6 endoscope, 61 optical fiber wire connector, 7 electric hook. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0032] Embodiment 1:

[0033] like Figures 1 to 14 The schematic diagram of the flushing and suction device provided by the present invention and used in conjunction with a tubular instrument is shown, wherein the tubular instrument is an endoscope 6 .

[0034] The irrigation and suction device used in conjunction with the tubular instrument comprises an irrigation and suction sleeve 1 extending in the front-to-back direction and sleeved on the outer periphery of the tubular instrument, and a control component 2 arranged at the rear end of the irrigation and suction sleeve 1 for controlling the irrigation and suction sleeve 1 to slide forward and backward relative to the tubular instrument;

[0035] The wall of the flushing and suction sleeve 1 is provided with a cavity 11 which runs through the front and back and allows fluid to flow;

[0036] The control assembly 2 includes an annular fixing seat 21 and an annular limiting cap 22 inserted at the front end of the annular fixing seat 21 and capable of sliding forward and backward relative to the annular fixing seat 21; a sliding protrusion 223 extending in the front-to-back direction is provided on the outer wall surface of the side wall of the annular limiting cap 22, and a sliding groove 213 matching the sliding protrusion 223 is provided on the inner wall surface of the side wall of the annular fixing seat 21;

[0037] The center of the annular fixing seat 21 is provided with a channel A211 extending along its axial direction, and the center of the annular limiting cap 22 is provided with a channel B221 extending along its axial direction and communicating with the channel A211, and the channel A211 and the channel B221 form a channel for accommodating the insertion of tubular instruments; the annular fixing seat 21 is provided with a fixing piece that matches and fixes the tubular instrument; the annular limiting cap 22 is sleeved on the rear end of the flushing and suction sleeve 1, and the side wall of the annular limiting cap 22 is provided with a connector 222 that is communicated with the rear end of the cavity 11 and is used to connect with the negative pressure device and / or the flushing device.

[0038] The flushing and suction device is sleeved on the periphery of the endoscope 6. When flushing or suction is required during the operation, the flushing and suction sleeve 1 can be pushed forward relative to the endoscope 6 by controlling the control component 2, and the front end of the endoscope 6 is retracted in the flushing and suction sleeve 1. At this time, the whole set of the flushing and suction device and the endoscope 6 becomes a flushing and suction device (such as Figure 8 As shown in the figure), then according to actual needs, fluid (such as liquid or gas) can be introduced into the flushing and suction sleeve 1, or negative pressure suction can be performed to remove the gas or waste liquid generated during the operation. Because the front end of the endoscope 6 is retracted in the flushing and suction sleeve 1, the front end of the endoscope 6 will not be contaminated during the flushing process. During the operation, if flushing or negative pressure suction is not required, there is no need to push the flushing and suction sleeve 1 forward, so the entire device can play the function of the endoscope 6 itself (such as Figure 5 As shown), the retracted irrigation and suction sleeve 1 does not affect the function of the endoscope 6 itself.

[0039] The control assembly 2 further includes a limiting unit provided on the annular limiting cap 22;

[0040] The limiting unit includes at least one pair of limiting strips 231 symmetrically arranged on the annular limiting cap 22 with the central axis of the annular limiting cap 22 as the symmetry axis and extending backwards, two outwardly extending clamping blocks 2311 are arranged on the outer wall surface of the limiting strip 231 from front to back, and a clamping groove 2312 is formed between the clamping blocks 2311 and the clamping blocks 2311, and a through hole 214 for allowing the limiting strip 231 to pass through is provided on the rear side wall of the annular fixing seat 21, and a protrusion 212 extending inwards is provided on the front end of the side wall of the annular fixing seat 21;

[0041] When the annular limiting cap 22 is not pushed forward, the edge of the through hole 214 is stuck in the slot 2312; the limiting strip 231 is pressed inward, the slot 2312 is disengaged from the through hole 214, and the annular limiting cap 22 is pushed forward until the block 2311 contacts the protrusion 212, and the block 2311 is constrained by the protrusion 212.

[0042] The setting of the limiting unit can limit the annular limiting cap 22, thereby limiting the position of the flushing and suction sleeve 1, and preventing the flushing and suction sleeve 1 from moving forward and backward unintentionally.

[0043] The control assembly 2 further includes a return spring 24 disposed between the front side wall of the annular limiting cap 22 and the rear side wall of the annular fixing seat 21 , and the tubular instrument passes through the hole B221 of the annular limiting cap 22 via the return spring 24 .

[0044] When the block 2311 is stuck in the through hole 214 of the annular fixing seat 21, the reset spring 24 is compressed. When the limit strip 231 is pressed inward, the block 2311 is separated from the through hole 214, and the reset spring 24 is restored. At this time, the annular limit cap 22 is pushed forward under the action of the reset spring 24. Figure 7 Schematic diagram of the state when the return spring 24 is compressed. Fig.10 It is a schematic diagram of the state when the return spring 24 returns.

[0045] The control assembly 2 further comprises a sealing ring 25 arranged on the wall surface of the hole B221 of the annular limiting cap 22. The sealing ring 25 is arranged to prevent the liquid from flowing out through the gap between the hole B221 and the tubular device during negative pressure suction.

[0046] The cross section of the irrigation and suction sleeve 1 is in the shape of an arc.

[0047] The flushing and suction sleeve 1 with an arc-shaped cross section can better fit the tube wall of tubular instruments of different specifications and has a wider range of applications.

[0048] The sleeve wall at the front end of the flushing and suction sleeve 1 is provided with a plurality of anti-blocking holes 12 communicating with the cavity 11 .

[0049] During the flushing and suction process, the anti-blocking hole 12 can effectively prevent tissue fragments and blood clots from blocking the cavity 11 of the flushing and suction sleeve 1.

[0050] The fixing member includes a pair of symmetrically arranged holding rods 261 clamped on the tubular instrument branch pipe; the front end of the holding rod 261 is fixedly connected to the annular fixing seat 21, and the rear end of the holding rod 261 is provided with a bayonet 2611 matching the outer diameter of the tubular instrument branch pipe.

[0051] Some tubular instruments are provided with branch tubes, such as the optical fiber wire connector 61 provided on the body of the endoscope 6. In this case, the fixing part can adopt this holding rod 261 type fixing part. The front end of the holding rod 261 is fixedly connected to the annular fixing seat 21, and the bayonet 2611 at the rear end of the two holding rods 261 embraces the optical fiber wire connector 61.

[0052] The irrigation and suction device used in conjunction with the tubular instrument further comprises an irrigation and suction control handle 3 connected to the joint 222 via a pipeline, an irrigation tube 4 arranged on the irrigation and suction control handle 3, and a suction tube 5 arranged on the irrigation and suction control handle 3;

[0053] The flushing and suction control handle 3 is provided with a chamber 31 extending in the front-to-back direction and connected with the cavity 11 of the flushing and suction sleeve 1 through a pipeline; one end of the flushing tube 4 is connected with the chamber 31; a flushing button 32 for controlling the unblocking of the flushing tube 4 is provided at the connection between the flushing tube 4 and the chamber 31; the other end of the flushing tube 4 is connected with the flushing device; one end of the suction tube 5 is connected with the chamber 31; a suction button 33 for controlling the unblocking of the suction tube 5 is provided at the connection between the suction tube 5 and the chamber 31; the other end of the suction tube 5 is connected with the negative pressure device.

[0054] The flushing and suction control handle 3 is also provided with a pressure regulating nut 34 for adjusting the negative pressure.

[0055] like Figure 1 As shown, the connector 222 is connected to the port a 311 of the chamber 31 of the irrigation and suction control handle 3 through a hose.

[0056] The flushing device can be an infusion bottle or an infusion bag, etc., or can be an air supply device. When the flushing button 32 is pressed, the flushing tube 4 is connected to the chamber 31 of the flushing and suction control handle 3, and the fluid can be introduced into the flushing and suction sleeve 1. The negative pressure device can be a negative pressure device commonly used in hospitals. When the suction button 33 is pressed, the suction tube 5 is connected to the chamber 31. At this time, under the action of the negative pressure device, the waste gas or waste liquid generated during the operation can flow to the suction tube 5 through the flushing and suction sleeve 1, and then be recovered by the waste recovery container.

[0057] Embodiment 2:

[0058] like Figures 15 to 20 The schematic diagram of the flushing and suction device provided by the present invention and used in conjunction with a tubular device is shown, wherein the tubular device is an electric hook 7 .

[0059] The structure of the flushing and suction device in the second embodiment is substantially similar to that of the flushing and suction device described in the first embodiment, and the main difference lies in the different fixing parts.

[0060] like Figures 15 to 20 As shown in the second embodiment, the fixing member includes an annular flange 262 and an annular nut 263 which are arranged on the rear side wall of the annular fixing seat 21 and extend backward; a channel C2631 for allowing a tubular instrument to penetrate and communicate with the channel A211 of the annular fixing seat 21 is provided in the center of the annular nut 263, a sealing ring is provided on the wall surface of the channel C2631 of the annular nut 263, an internal thread is provided on the inner wall surface of the side wall of the annular nut 263, and an external thread matching the internal thread is provided on the side wall of the annular flange 262.

[0061] The sealing ring can be replaced by a sealing cap sleeved on the outer periphery of the annular nut 263. The sealing cap is provided with a hole D identical to the hole C2631. The sealing ring and the sealing cap can make the annular nut 263 and the tubular device have an interference fit, thereby preventing the tubular device from moving in the annular nut 263. Since the setting of the sealing ring and the sealing cap is conventional technology, the specific positions of the sealing ring and the sealing cap are not marked in the drawings of the present invention.

[0062] The flushing and suction device with such a fixing member can be used in conjunction with tubular instruments with branch tubes, and can also be used in conjunction with some tubular instruments without branch tubes. For example, when used on the electric hook 7, the flushing and suction device with this fixing member and the electric hook 7 are shown in the following figure. Fig.16 When used in conjunction with a tubular instrument with a branch tube, such as an endoscope 6, the endoscope tube of the endoscope 6 only needs to be inserted through the hole C2631, and then the annular nut 263 and the annular flange 262 are tightened.

Claims

1. An irrigation and suction device for use with a tubular instrument, characterized in that: It comprises a flushing and suction sleeve (1) extending in the front-to-back direction and sleeved on the outer periphery of a tubular device, and a control component (2) arranged at the rear end of the flushing and suction sleeve (1) for controlling the flushing and suction sleeve (1) to slide forward and backward relative to the tubular device; The wall of the flushing and suction sleeve (1) is provided with a cavity (11) which runs through from front to back and allows fluid to flow; The control assembly (2) comprises an annular fixing seat (21) and an annular limiting cap (22) inserted at the front end of the annular fixing seat (21) and capable of sliding forward and backward relative to the annular fixing seat (21); The center of the annular fixing seat (21) is provided with a hole A (211) extending in the axial direction thereof, and the center of the annular limiting cap (22) is provided with a hole B (221) extending in the axial direction thereof and communicating with the hole A (211), and the hole A (211) and the hole B (221) form a passage for inserting a tubular instrument; the annular fixing seat (21) is provided with a fixing member matching and fixing the tubular instrument; the annular limiting cap (22) is sleeved on the rear end of the flushing and suction sleeve (1), and a connector (222) is provided on the side wall of the annular limiting cap (22) which is communicated with the rear end of the cavity (11) and is used to connect with a negative pressure device or / and a flushing device; The control component (2) further comprises a limiting unit arranged on the annular limiting cap (22); The limiting unit comprises at least one pair of limiting strips (231) symmetrically arranged on the annular limiting cap (22) with the central axis of the annular limiting cap (22) as the symmetry axis and extending backwards, two outwardly extending clamping blocks (2311) are arranged on the outer wall surface of the limiting strip (231) from front to back, and a clamping groove (2312) is formed between the clamping blocks (2311) and the clamping blocks (2311), a through hole (214) for allowing the limiting strip (231) to pass through is provided on the rear side wall of the annular fixing seat (21), and a protrusion (212) extending inwards is provided on the front end of the side wall of the annular fixing seat (21); When the annular limiting cap (22) is not pushed forward, the edge of the through hole (214) is stuck in the clamping groove (2312); the limiting strip (231) is pressed inward, the clamping groove (2312) and the through hole (214) are disengaged, and the annular limiting cap (22) is pushed forward until the clamping block (2311) contacts the protrusion (212), and the clamping block (2311) is constrained by the protrusion (212); The control assembly (2) further comprises a return spring (24) arranged between the front side wall of the annular limiting cap (22) and the rear side wall of the annular fixing seat (21), and the tubular instrument passes through the hole B (221) of the annular limiting cap (22) via the return spring (24).

2. The irrigation and suction device used in conjunction with a tubular instrument according to claim 1, characterized in that: The control component (2) further comprises a sealing ring (25) arranged on the wall surface of the hole B (221) of the annular limiting cap (22).

3. The irrigation and suction device used in conjunction with a tubular instrument according to claim 1, characterized in that: A plurality of anti-blocking holes (12) communicating with the cavity (11) are provided on the sleeve wall at the front end of the flushing and suction sleeve (1).

4. The irrigation and suction device used in conjunction with a tubular instrument according to claim 1, characterized in that: The fixing member comprises a pair of holding rods (261) symmetrically arranged and clamped on the branch pipe of the tubular instrument; the front end of the holding rod (261) is fixedly connected to the annular fixing seat (21), and the rear end of the holding rod (261) is provided with a bayonet (2611) matching the outer diameter of the branch pipe of the tubular instrument.

5. The irrigation and suction device used in conjunction with a tubular instrument according to claim 1, characterized in that: The fixing member comprises an annular convex edge (262) and an annular nut (263) which is arranged on the rear side wall of the annular fixing seat (21) and extends backward; a hole C (2631) for allowing a tubular instrument to pass through and communicating with the hole A (211) of the annular fixing seat (21) is arranged at the center of the annular nut (263); a sealing ring is arranged on the wall surface of the hole C (2631) of the annular nut (263); an internal thread is arranged on the inner wall surface of the side wall of the annular nut (263); and an external thread matching the internal thread is arranged on the side wall of the annular convex edge (262).

6. The irrigation and suction device used in conjunction with a tubular instrument according to any one of claims 1 to 5, characterized in that: It also includes a flushing and suction control handle (3) connected to the joint (222) via a pipeline, a flushing tube (4) arranged on the flushing and suction control handle (3), and a suction tube (5) arranged on the flushing and suction control handle (3); The flushing and suction control handle (3) is provided with a chamber (31) extending in the front-to-back direction and connected to the cavity (11) of the flushing and suction sleeve (1) through a pipeline; one end of the flushing tube (4) is connected to the chamber (31); a flushing button (32) for controlling the unblocking of the flushing tube (4) is provided at the connection between the flushing tube (4) and the chamber (31); the other end of the flushing tube (4) is connected to the flushing device; one end of the suction tube (5) is connected to the chamber (31); a suction button (33) for controlling the unblocking of the suction tube (5) is provided at the connection between the suction tube (5) and the chamber (31); the other end of the suction tube (5) is connected to the negative pressure device.

7. The irrigation and suction device used in conjunction with a tubular instrument according to claim 6, characterized in that: The flushing and suction control handle (3) is also provided with a pressure regulating nut (34) for adjusting the negative pressure.

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