CN217593490U - Surgical irrigation and suction drainage assembly - Google Patents

Abstract

The utility model relates to a surgery is with washing suction drainage subassembly, it has the distal end that more distantly goes away from operating personnel when using and the near-end that more is close to operating personnel when using, and it includes: a handle that can be held by an operator during surgery; the suction branch can be used for sucking dirt at a human body operation area in an operation, and comprises a suction pipe arranged at the far side of the handle and a suction connecting pipe arranged at the near side of the handle; an irrigation branch, which can be used for intraoperatively irrigating a surgical region of the human body, having an irrigation tube arranged distally of the handle and an irrigation connection tube arranged proximally of the handle, wherein the aspiration branch and the irrigation branch are fluidically isolated with respect to each other, the irrigation tube being sheathed on the aspiration tube and being spaced apart from each other by a radial gap, which forms part of the irrigation branch. The suction tube has the advantages that the inner space of the suction tube is not occupied by the flushing tube, the suction operation is smooth, and the blocking probability is reduced.

Description

Surgical irrigation and suction drainage assembly

Technical Field

The utility model relates to a surgical irrigation and suction drainage component.

Background

At present, sterile physiological saline or sugar water is needed to wash an operation area or an instrument in almost all operation processes, and blood color liquid or washing water generated by a wound needs to be sucked away in time almost to clean up dirt in an operation field, make the operation field clear and reduce infection.

There are three main ways of irrigation and aspiration for domestic hospital surgical applications, the first being the traditional open irrigation and aspiration that has been used throughout: the nurse opens the sterile saline or sugar water, pours it into the container, and then sucks it with a balloon, and delivers it to the doctor for use, or scoops it out of the container with a small bowl, and delivers it to the doctor for use. This rinsing process creates the following problems: contamination can easily occur during this process because the mouth or bag mouth of sterile saline is easily contaminated when opened; the water container is exposed to the air for a long time (almost along with the whole operation), and the pollution probability is increased; bacteria are arranged outside the hands and the container, and the operation is carried out across the upper part of the basin, so that the aseptic principle is not met; in addition, the operation is inconvenient, and after the doctor of the main knife sends the information of needing water, the nurse gets the water and then transfers the information, so that the precious operation time is wasted in the process. When suction is needed, the excess liquid in operation is sucked away by gauze or a suction apparatus (tube). The suction apparatus (tube) is generally reusable, that is, after each operation, a nurse cleans the inside and outside of the suction apparatus (tube) by using a poker, and finally sterilizes the inside and outside of the suction apparatus (tube) at high temperature and high pressure, and then the suction apparatus (tube) is reused. Cleaning the interior of the aspirator (tube) is a difficult problem, which can lead to incomplete cleaning of the dirt and infection, and also increases the workload of medical staff. Therefore, the open type flushing and sucking mode is susceptible to infection, and is tedious to operate and time-wasting.

The second is a pressure-regulating type minimally invasive irrigation suction tube appearing in the market in recent years, the product changes the traditional water supply mode, two pipelines for irrigation and suction are converged on a tiny and bent stainless steel suction tube, and the stainless steel suction tube can extend into the wound surface of an operation. The other end of the flushing pipeline is connected with a normal saline bag, and the other end of the suction pipeline is connected with a negative pressure suction device. Through simple handle button switching operation, can realize washing and attracting the operation surface of a wound at any time, convenient operation has shortened the operation time. However, the device has a disadvantage that the two pipelines of the flushing and the suction share a tiny stainless steel suction tube, so that a small amount of the sucked wound body fluid still remains on the inner wall of the shared stainless steel suction tube, and is flushed into the surgical wound by the physiological saline during flushing, thereby causing the possibility of secondary infection for patients. In addition, the flushing pipeline is thick, the water quantity is large, the adjustment is not convenient, and the device is not suitable for fine minimally invasive surgery.

The third is also several improved irrigation aspirators that have emerged in recent years. The flushing and suction pipelines are arranged independently, so that the problem that the sucked liquid is flushed back to the wound surface of the operation can not occur. However, some models are products which are repeatedly used, gaps of the product structure are difficult to clean, and when repeated sterilization is carried out, cleaning and sterilization are not thorough, and cross infection risks are easy to generate. The other type is disposable, but a flushing pipeline is nested in the suction channel, so that the cross section space of the suction channel is partially occupied, and the suction channel is easy to block; in addition, the switch function of the flushing pipeline of the model is circuit control, and the flushing pipeline needs to be matched with a special device, so that the used device is complex, complex in operation, inconvenient in storage in an operating room, and troublesome in back-and-forth carrying, and the convenience in use of products is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a surgical is with washing suction drainage subassembly, it can solve one of the above-mentioned problems at least.

In order to achieve the above object, the present invention provides a surgical irrigation suction drainage assembly having a distal end farther from an operator when in use and a proximal end closer to the operator when in use, wherein the surgical irrigation suction drainage assembly comprises:

a handle that can be held by an operator during surgery;

a suction branch which can be used for sucking the dirt at the operation area of the human body in the operation, and is provided with a suction tube arranged at the far side of the handle and a suction connecting tube arranged at the near side of the handle;

an irrigation branch capable of being used to irrigate a surgical field of a human body during surgery, the irrigation branch having an irrigation tube disposed distal to the handle and an irrigation connection tube disposed proximal to the handle,

wherein the aspiration branch and the irrigation branch are fluidly isolated with respect to each other, the irrigation tube is sleeved on the aspiration tube and spaced apart from each other by a radial gap, the radial gap forming a portion of the irrigation branch.

The utility model discloses a surgery is with washing suction drainage subassembly's beneficial effect lie in, but not limited to, attract inside space of tube not occupied by the flushing pipe, attract the operation unobstructed, reduce and block up the probability. The irrigation branch and the suction branch are completely separated from each other in terms of fluid, so that the possibility that the sucked liquid is flushed and flows back into the surgical wound to increase the probability of secondary infection can be avoided.

Advantageously, the suction tube is fixed at its proximal end in the handle via a suction tube holder having a cylindrical through hole assigned to the suction tube.

Advantageously, the suction tube holder is provided with an external thread on its outer circumference, and the suction tube holder is fixed with its external thread in a receiving cavity of the handle with an internal thread.

Advantageously, the suction branch has a cavity provided in the handle, via which cavity the suction tube and the suction connection tube are in fluid communication.

Advantageously, a pressure regulation orifice is provided on the handle, which communicates the cavity with the atmosphere.

Advantageously, the suction connection tube is provided at its proximal end with a three-way connection and a flow stop clip is provided on the suction connection tube.

Advantageously, the suction tube is provided with an internal crimping structure at its distal end.

Advantageously, the irrigation tube is arranged with its distal opening offset rearwardly relative to the distal opening of the suction tube.

Advantageously, the flushing tube is fixed at its proximal end in the handle via a flushing tube holder having a cylindrical through hole assigned to the flushing tube.

Advantageously, the flushing pipe holder is provided with an external thread on its outer circumference, and the flushing pipe holder is fixed with its external thread in the receiving chamber of the handle with the internal thread.

Advantageously, the irrigation tube holder is disposed distally of the aspiration tube holder and is axially spaced apart therefrom to form an annular cavity in fluid communication with the radial gap.

Advantageously, a sealing element is provided between the irrigation tube holder and the handle and between the suction tube holder and the handle, respectively.

Advantageously, the flushing branch has a flushing hose, which is assigned a water control device, by means of which an operator can control the opening and closing of the flushing hose.

Advantageously, the water control device has a base, a button and a spring mechanism arranged between the base and the button, the base and the button cooperating via the spring mechanism.

Advantageously, the base and the handle are formed independently of each other, or the base is formed by the structure of the handle itself.

Advantageously, the base is configured as a cylindrical structure with a window, the button is configured as a cylindrical structure with a through-going portion, the button is partially embedded inside the base, and the window and the through-going portion are aligned with each other and are penetrated by the flushing hose.

Advantageously, the water control means is provided on the handle.

Advantageously, a stop clamp or a flow rate regulator is provided on the flushing connection tube.

Advantageously, the irrigation hose is in fluid communication with the irrigation connection tube via a two-way through-connection fixed to the handle.

Advantageously, the flushing branch has a flushing hose, which is equipped with a water control device, by means of which an operator can control the opening and closing of the flushing hose, which is in fluid communication with the annular cavity via a two-way bent connection.

Drawings

The invention is explained in more detail below with reference to the drawings by means of embodiments, but is not limited to the embodiments described in the drawings and explained in detail below. The attached drawings are as follows:

FIG. 1 is a schematic side view of a surgical irrigation aspiration drainage assembly in accordance with one embodiment of the present invention;

FIG. 2 is a schematic side view of the surgical irrigation aspiration drainage assembly of FIG. 1 with the cap removed, the handle partially sectioned, and the irrigation tube and aspiration tube partially sectioned;

FIG. 3 is a bottom view of the surgical irrigation aspiration drainage assembly of FIG. 1 with the handle partially broken away at the water control device;

FIG. 4 is an enlarged view of portion II of the surgical irrigation aspiration drainage assembly of FIG. 2;

FIG. 5 is an enlarged view of a portion III of the surgical irrigation aspiration drainage assembly of FIG. 2;

FIG. 6 is an enlarged view of a portion IV of the surgical irrigation aspiration drainage assembly of FIG. 1;

FIG. 7 is a cross-sectional view through section line J-J of the surgical irrigation aspiration drainage assembly of FIG. 2;

FIG. 8 is an enlarged view of a portion I of the surgical irrigation aspiration drainage assembly of FIG. 3;

FIG. 9a is a perspective view of the water control device of the surgical irrigation aspiration drainage assembly of FIG. 1;

FIG. 9b is a side view of the water control device of FIG. 9 a;

FIG. 9c is another side view of the water control device of FIG. 9 a;

FIG. 10a is a perspective view of a button of the water control device of FIG. 9 a;

FIG. 10b is a side view of the button of FIG. 10 a;

FIG. 10c is another side view of the button of FIG. 10 a;

FIG. 11a is a perspective view of a base of the water control device of FIG. 9 a;

FIG. 11b is a side view of the base of FIG. 11 a; and

fig. 11c is another side view of the base of fig. 11 a.

Detailed Description

Illustrative embodiments of the surgical irrigation aspiration drainage assembly 1 of the present invention are described below. In the description, various systems, structures and devices are schematically depicted in the drawings for purposes of explanation only and not all features of an actual system, structure or device, such as a well-known function or structure, are not described in detail to avoid obscuring the present invention in unnecessary detail. It will of course be appreciated that in the development of any such actual implementation, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such implementation decisions, while complex and time consuming, are nevertheless routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

The terms and phrases used herein should be understood and interpreted to have a meaning consistent with the understanding of those terms and phrases by those skilled in the relevant art. No special definition of a term or phrase, i.e., a definition that is different from the ordinary and customary meaning as understood by those skilled in the art, is intended to be implied by consistent usage of the term or phrase herein. To the extent that a term or phrase is intended to have a special meaning, i.e., a meaning other than that understood by skilled artisans, such a special definition will be expressly set forth in the specification in a definitional manner that directly and unequivocally provides the special definition for the term or phrase.

Throughout the following description, unless the context requires otherwise, the words "comprise", "comprising", and variations thereof, such as "comprises", "comprising", and "having", will be interpreted in an open, inclusive sense, i.e., as "including but not limited to".

Next, a surgical irrigation aspiration drainage assembly 1 according to an embodiment of the present invention will be exemplarily described with reference to fig. 1 to 11 c. The surgical irrigation and suction drainage component 1 can be suitable for irrigation and suction in the processes of neurosurgery craniocerebral and spinal cord spinal surgeries, ear-nose-throat, orthopedics, head and neck and other professional microsurgery surgeries, and can also be suitable for irrigation and suction in the processes of endoscopic surgeries and various deep tissue structure surgeries and irrigation and suction of surgical wounds with abundant small blood vessels and nerves, so as to ensure the cleanness of the surgical field of minimally invasive surgeries.

The surgical irrigation aspiration drainage assembly 1 may have a distal end that is distal to the operator during surgery and a proximal end that is proximal to the operator. The operator can be a doctor or other person operating the irrigation aspiration drainage assembly 1 during surgery.

The irrigation aspiration drainage assembly 1 may have a handle 2 for an operator to hold during surgery. The handle 2 may be made of plastic to reduce costs. The handle 2 may have a streamlined finger gripping surface to meet ergonomic requirements and increase gripping comfort. The handle 2 may be provided locally with a soft gel structure to increase the hand-held anti-slip force.

The irrigation aspiration drainage assembly 1 can have an aspiration branch 3, and the aspiration branch 3 can be used to aspirate away the waste in the operating area or wound of the human body, such as bloody liquid or irrigation water generated by the wound, when necessary during the operation, so as to clarify the operation field and reduce the wound infection.

Referring to fig. 1 to 4, the suction branch 3 may include a suction tube 4 at its distal end, and the suction tube 4 may be inserted into the wound with its distal end to suck the dirt during the operation. The suction tube 4 may be made of a metal material, such as a medical stainless steel material, and may have a soft hardness so as to be freely bent into a desired shape during surgery. The suction tube 4 may have a cylindrical, tubular shape and its distal end may be provided with an internal bead or curl 5 (see fig. 4) to prevent it from cutting weakened body tissue during surgery.

Referring to fig. 5, the suction tube 4 may be fixed with its proximal end inside the handle 2. Specifically, in the present embodiment, the suction tube 4 may be fixed inside the handle 2 via the suction tube fixing base 6. The suction tube holder 6 may have a sleeve-shaped construction and may have a cylindrical through-hole assigned to the suction tube 4 and an external thread 7 on its outer circumference. The suction tube 4 can be inserted with its proximal end (e.g., with an interference fit) into the through-hole of the suction tube holder 6 and adhesively fixed, if necessary, by means of an adhesive (e.g., epoxy), and the proximal end of the suction tube 4 can not protrude beyond the proximal end of the suction tube holder 6. The suction tube holder 6 can be fixed with its external thread 7 in a receiving space 9 of the handle 2 with an internal thread 8.

The aspiration branch 3 may comprise an elongated extending cavity 10 arranged within the handle 2, which cavity 10 may be arranged proximal to the aspiration tube 4 and may be in fluid communication with the aspiration tube 4 at its distal end. A pressure regulating hole 11 is provided through the wall of the handle 2 surrounding the cavity 10, and the pressure regulating hole 11 can communicate the cavity 10 with the atmosphere. The pressure-adjusting hole 11 may have a substantially drop-shaped shape and may be provided laterally of the handle 2. At the time of the suction operation, when all the pressure adjusting holes 11 are pressed by a finger such as a thumb, the suction pressure is maximized; when the pressure adjusting hole 11 is not pressed by a finger, the suction pressure is minimum; when the finger only presses part of the pressure adjusting hole 11, for example, the area of the pressure adjusting hole 11 pressed by the finger is smaller and smaller, the suction pressure is gradually changed from large to small. Therefore, when suctioning contaminants during an operation, the operator can change the suction negative pressure or suction pressure in the suction branch 3 by changing the pressing area of his/her finger on the pressure adjustment hole 11, thereby changing the speed of suctioning wound contaminants.

Referring to fig. 1 to 3, the suction branch 3 may include a suction connection tube 12 disposed at a proximal side of the handle 2. The distal end portion of the suction connection tube 12 may be a soft and elastic medical rubber (silicone) tube, so that the handle 2 is comfortable to handle without twisting the wrist and without hand separation. The suction connector tube 12 may be fitted with its distal end over a hollow cylindrical projection (into which the cavity 10 extends) at the proximal end of the handle 2 and in fluid communication with the cavity 10. Thereby, the suction connecting tube 12 can be in fluid communication with the suction tube 4 via the cavity 10. The suction connecting pipe 12 may be connected to a suction machine (not shown) for applying a negative pressure via a three-way joint 13. During normal suction operation via the suction branch 3, the additional third connection 14 of the three-way connection 13 can be blocked by a plug 15 provided thereon in order to maintain the negative pressure in the suction branch 3. When the suction branch 3 is blocked by the dirt and can not suck normally, the third interface 14 can be used to connect another suction component 1 (or the disposable suction drainage device for flushing in the operating room) to establish a standby suction branch, so as to continue the operation and avoid the interruption of the operation. At the same time, the suction connection pipe 12 can be closed by a flow stop clamp 16 (e.g. a robert clamp) provided thereon to maintain the negative pressure in the spare suction branch 3. At this time, the suction branch 3 can be dredged by a nurse with a poker.

The irrigation aspiration drainage assembly 1 may have an irrigation branch 17, which irrigation branch 17 may be used to irrigate the wound with an irrigation fluid, such as sterile saline or sugar water, as needed during the procedure.

Referring to fig. 1-4, the irrigation branch 17 may include an irrigation tube 18 at its distal end, and the irrigation tube 18 may be brought close to or into the wound with its distal end to irrigate the wound during surgery. The irrigation tube 18 may be made of a metallic material, such as a medical grade stainless steel material, and may have a soft durometer to allow for free bending into a desired shape during surgery. The irrigation tube 18 may have a cylindrical, tubular shape and its distal end may be provided with a rounded mouth to prevent it from cutting weakened body tissue during surgery. The diameter of the irrigation tube 18 can be greater than the diameter of the suction tube 4, whereby the irrigation tube 18 can be fitted, for example, coaxially, at a radial distance outside the suction tube 4 and form a radial gap 19. Therefore, the flushing pipe 18 and the suction pipe 4 can form a pipe-in-pipe structure, thereby realizing compact integration of the two and being separated from each other independently. Irrigation fluid may flow out of the distal opening of the irrigation tube 18 through the radial gap 19 between the irrigation tube 18 and the aspiration tube 4. The irrigation tube 18 can be arranged with its distal opening offset at a distance to the rear or proximal side relative to the distal opening 20 of the suction tube 4, so that irrigation fluid can flow out of the distal opening 20 of the irrigation tube 18 in a spray-like manner and can be guided along the outer circumference of the exposed portion of the suction tube 4 to the wound. In addition, the back suction of the flushing liquid by the suction tube 4 can be effectively prevented.

Referring to fig. 5, the irrigation tube 18 may be secured at its proximal end within the handle 2. In particular, in the present embodiment, the irrigation tube 18 may be fixed within the handle 2 via an irrigation tube holder 21. Like the suction tube holder 6, the irrigation tube holder 21 may have a sleeve-shaped construction and may have a cylindrical through-opening assigned to the irrigation tube 18 and an external thread 7 on its outer circumference. The proximal end of the irrigation tube 18 can be inserted (e.g., with an interference fit) into the through-opening of the irrigation tube holder 21 and optionally adhesively secured by means of an adhesive (e.g., epoxy), and the proximal end of the irrigation tube 18 can not protrude beyond the proximal end of the irrigation tube holder 21. The flushing pipe holder 21 can be fixed with its external thread 7 in the same receiving chamber 9 of the handle 2 as described above with the internal thread 8. The irrigation tube holder 21 may be disposed distal to the aspiration tube holder 6 and both may be coaxially disposed (i.e., the central longitudinal axes of both coincide). A distance can be set apart in the axial direction between the irrigation tube holder 21 and the suction tube holder 6 to form an annular cavity 22, which annular cavity 22 can be enclosed by the proximal end side of the irrigation tube holder 21, the distal end side of the suction tube holder 6, the outer wall of the suction tube 4 and the inner thread 8 of the receiving chamber 9. The annular cavity 22 may be in fluid communication with the radial gap 19 between the irrigation tube 18 and the aspiration tube 4.

A seal 23 (sealing ring) may be provided at the proximal end of the suction tube holder 6 between it and the inner wall of the receiving chamber 9 to fluidly seal the suction branch 3 from the annular cavity 22 and thus the irrigation branch 17.

A further seal 23 (sealing ring) may be provided at the distal end of the flushing tube holder 21 between it and the inner wall of the receiving chamber 9 to fluidly seal the annular cavity 22 and thus the flushing branch 17 from the external environment.

The irrigation branch 17 may comprise a two-way bent connector 24, which two-way bent connector 24 may be plugged with its distal end interface into a radial through hole 25 of the handle 2, which radial through hole 25 may be provided on the wall of the handle 2 surrounding the receptacle radially outside the annular cavity 22. Thereby, the two-way bent sub 24 may be in fluid communication with the annular cavity 22 via the radial through hole 25. The two-way bent connection 24 can be plugged with its proximal connection to an irrigation hose 26, which irrigation hose 26 can extend within the handle 2 parallel to the elongated cavity 10. The flushing hose 26 may be provided with a water control device 27 for controlling its opening and closing, as will be explained in more detail below. The irrigation hose 26 may be connected at its distal end to the two-way flex connector 24, see fig. 5.

Thus, referring to fig. 5, a cavity 41 may be provided below the handle 2, and the cavity 41 may be open towards the lateral direction and may be covered from the lateral direction by a cover 40, the cover 40 being removed in fig. 5 and shown in fig. 1. The two-way flex connector 24, flush hose 26, water control 27 and two-way through connector 28 described above may be disposed together within the cavity 41 and may be covered by a cover 40 except for the water control 27.

Referring to fig. 1-3, the irrigation branch 17 may include an irrigation connection tube 29 disposed proximally of the handle 2. The flushing connection 29 can be a plastic pipe, for example a PVC pipe. The irrigation connection tube 29 may be connected at its distal end to the proximal end of the irrigation hose 26 via a two-way through-connection 28 (see fig. 5). The irrigation connection 29 can be connected at its proximal end to a plastic needle 30, which plastic needle 30 can be plugged onto an infusion bag (not shown) containing irrigation liquid. An infusion pressurizing bag (not shown) may be provided over the infusion bag to provide sufficient irrigation pressure, if desired. A flow stop clip 31 (e.g., a robert clip) can be provided on the flushing connection 29 for clamping the flushing connection 29. It is also conceivable to use a flow rate regulator instead of the flow stop clip 31 for stepless regulation of the flow rate of the irrigation liquid, which is suitable for use in delicate minimally invasive surgery, for example.

Next, the structure and the operation principle of the water control device 27 according to an embodiment of the present invention will be described with reference to fig. 5 and 7 to 11 c.

Referring to fig. 5, a water control device 27 may be provided on the handle 2 and may be operated by an operator from the same side of the handle 2 as the pressure adjustment hole 11. For example both may be operated by the thumb.

Referring to fig. 11a to 11c, the water control device 27 may have a base 32, and the base 32 may have a cylindrical sidewall and a bottom wall closing the sidewall at one end and being open at the other end thereof. The side wall may have two opposing windows 33, and the irrigation hose 26 may pass through the base 32 through the two windows 33. The bottom wall may be centrally formed with a cylindrical protrusion 34 thereon.

Referring to fig. 10a to 10c, the water control device 27 may have a button 35, and the button 35 may have a cylindrical body 42. The diameter of the body 42 may be smaller than the inner diameter of the base 32 so that the body 42 may be embedded in the base 32 and reciprocate in an axial direction relative to the base 32. The body 42 may have a through-section 36 extending through itself transverse to its longitudinal axis, the irrigation hose 26 being able to pass through the base 32 through this through-section 36. The push button 35 may have a cylindrical protrusion 37 extending downward at one end thereof, and a flat pressing portion 38 at the opposite side thereof, the pressing portion 38 being pressed by an operator.

Referring to fig. 9a to 9c, the water control device 27 can have a spring mechanism 39, for example, designed as a compression spring, by means of which spring mechanism 39 the base 32 and the push button 35 can cooperate. The button 35 may be partially embedded in the base 32, and the protrusion 37 of the button 35 and the protrusion 34 of the base 32 may be oriented toward each other. The spring mechanism 39 may be located between the base 32 and the button 35 and may be sleeved on the protrusion 34 of the base 32 at one end and on the protrusion 37 of the button 35 at the other end. The through-portion 36 of the push-button 35 can be oriented with its two opposite openings respectively towards the two windows 33 of the base 32, so that the flushing hose 26 can pass through both the windows 33 of the base 32 and the through-portion 36 of the push-button 35 (see fig. 7 and 8). The spring mechanism 39 may be arranged such that, in the non-depressed state of the button 35, the spring mechanism 39 presses the button 35 away from the base 32 with its return force, such that the flushing hose 26 is pinched by shear forces exerted on the flushing hose 26 by the window 33 of the base 32 and the bottom of the through portion 36 of the button 35, thereby blocking the flow of flushing liquid therein; in the pressed state of the push button 35, the push button 35 can be moved against the restoring force of the spring means 39 toward the base 32 until the flushing hose 26 is released without any shearing force being applied, thereby releasing the flow of flushing liquid therein.

Referring to fig. 7 and 8, in the mounted state of the water control device 27 on the handle 2, the base 32 may be insertedly fixed in the cavity 41 of the handle 2, while the button 35 may be positioned laterally towards the handle 2 and may partially protrude laterally from the cover 40 through a corresponding hole in the cover 40. As described above, the operator can release the irrigation fluid in the irrigation hose 26 by pressing the button 35 in a lateral direction, and can block the flow of the irrigation fluid by releasing the button 35.

In some embodiments, the water control device 27 may also be configured such that the button 35 may be configured as a cylindrical structure with one end open and the other end forming the pressing portion 38, and the button 35 may be sleeved with its open opening on the base 32 with a smaller diameter, and also a spring mechanism 39 is provided between the base 32 and the button 35. In some embodiments, the water control device 27 may also be constructed such that the base 32 is not separate from the handle 2, but is part of the handle 2, that is, the base 32 is formed by the internal structure of the handle 2.

The operation of the surgical irrigation aspiration drainage assembly 1 of the present invention is described next, which includes an aspiration operation and an irrigation operation:

the suction operation process comprises: the button 35 of the water control means 27 is not pressed with a finger to block the flushing branch 17 with the water control means 27, and at the same time, the pressure regulating hole 11 of the handle 2 is pressed with a finger to generate suction pressure in the suction branch 3 to perform the filth suction operation. The size of the suction pressure can be controlled by adjusting the area of the pressure regulating hole 11 pressed by the finger, and the speed of sucking the wound dirt can be further changed.

And (3) a washing operation process: instead of pressing the pressure regulating bore 11 with a finger, the button 35 of the water control device 27 is pressed, so that the irrigation hose 26 is opened and irrigation liquid flows through the irrigation hose 26 and out of the radial gap 19 between the irrigation tube 18 and the suction tube 4, so that an irrigation function is achieved; the finger releases the button 35 and the spring mechanism 39 urges the water control means 27 to pinch the flush hose 26, thereby stopping the flush.

Therefore, the main technical effects that the surgical irrigation and suction drainage assembly 1 can achieve include, but are not limited to: the inner space of the suction tube 4 is not occupied by the flushing tube 18, the suction operation is smooth, and the blocking probability is reduced; the irrigation branch 17 and the suction branch 3 are completely and independently separated from each other in terms of fluid, so that the possibility that the sucked fluid is flushed and flows back into the surgical wound to increase the probability of secondary infection can be avoided; the flow rate of the flushing liquid can be realized by presetting the size of a radial gap 19 between the suction pipe 4 and the flushing pipe 18 according to the operation requirement, and the suction function is not influenced; the handle 2 is provided with a suction pressure adjusting hole 11, so that stepless adjustment of suction pressure can be realized; the handle 2 is provided with a water control device 27 with a mechanical spring mechanism 39, so that the flushing hose 26 and the flushing branch 17 can be instantly switched on and off without adding extra special equipment, and the operation is easy, quick and reliable; the sharp edges on the peripheries of the front end surfaces of the suction tube 4 and the flushing tube 18 are provided with round angle passivation treatment for preventing tissue from being cut; the mouth of the suction tube 4 is also provided with an internal curled edge 5 to prevent scratching tissues; because the diameter or the volume of the part of the irrigation, suction and drainage assembly 1 entering the human body is smaller, more instruments can be accommodated in the operation wound channel for simultaneous use during the operation; the flushing, sucking and drainage assembly 1 is in sterile connection in a totally closed way, so that the infection probability is reduced; the streamline design of the finger kneading surface of the handle 2 completely meets the requirement of human engineering; most parts of the irrigation, suction and drainage assembly 1 are made of plastic, so that the cost is low. The flushing and suction drainage component 1 is disposable, and the cross infection risk caused by repeated use is avoided.

Finally, it is pointed out that the above-described embodiments are only intended to understand and explain the invention, without limiting the scope of protection of the invention. It will be apparent to those skilled in the art that modifications may be made in the foregoing embodiments, all without departing from the scope of the invention.

Claims (20)

1. A surgical irrigation aspiration drainage assembly having a distal end that is further from an operator in use and a proximal end that is closer to the operator in use, comprising:

a handle that can be held by an operator during surgery;

the suction branch can be used for sucking dirt at the operation area of the human body in an operation, and the suction branch is provided with a suction tube arranged at the far side of the handle and a suction connecting tube arranged at the near side of the handle;

an irrigation branch capable of being used to irrigate a surgical area of a human body during surgery, the irrigation branch having an irrigation tube disposed distal to the handle and an irrigation connection tube disposed proximal to the handle,

wherein the aspiration branch and the irrigation branch are fluidly isolated with respect to each other, the irrigation tube is sleeved on the aspiration tube and spaced apart from each other by a radial gap, the radial gap forming a portion of the irrigation branch.

2. The surgical irrigation suction drainage assembly of claim 1 wherein the suction tube is secured at its proximal end within the handle via a suction tube securement station having a cylindrical through bore associated with the suction tube.

3. The surgical irrigation and suction drainage assembly of claim 2, wherein the suction tube holder is provided with external threads on its outer circumference, and the suction tube holder is fixed with its external threads in a receiving cavity of the handle having internal threads.

4. The surgical irrigation aspiration drainage assembly of claim 1 wherein the aspiration branch has a cavity disposed within the handle through which the aspiration tube and the aspiration connection tube are in fluid communication.

5. The surgical irrigation aspiration drainage assembly of claim 4 wherein a pressure regulating port is provided in the handle that communicates the cavity to the atmosphere.

6. The surgical irrigation suction drainage assembly according to claim 1, wherein the suction connection tube is provided at a proximal end thereof with a three-way joint, and a flow stop clip is provided on the suction connection tube.

7. The surgical irrigation aspiration drainage assembly of claim 1 wherein the aspiration tube is provided with an internal crimp at its distal end.

8. The surgical irrigation aspiration drainage assembly of claim 1 wherein the irrigation tube is disposed with its distal opening rearwardly offset relative to the distal opening of the aspiration tube.

9. The surgical irrigation aspiration drainage assembly of claim 3 wherein the irrigation tube is secured at its proximal end within the handle via an irrigation tube mount having a cylindrical through hole assigned to the irrigation tube.

10. The surgical irrigation aspiration drainage assembly of claim 9 wherein the irrigation tube holder is externally threaded at its outer periphery and is externally threaded for securement within the internally threaded receiving cavity of the handle.

11. The surgical irrigation aspiration drainage assembly of claim 10 wherein the irrigation tube holder is disposed distally of the aspiration tube holder and is axially spaced apart therefrom to form an annular cavity in fluid communication with the radial gap.

12. The surgical irrigation aspiration drainage assembly of claim 11 wherein a seal is provided between the irrigation tube holder and the handle and between the aspiration tube holder and the handle.

13. The surgical irrigation aspiration drainage system of claim 1, wherein the irrigation branch comprises an irrigation hose, and the irrigation hose is provided with a water control device, and an operator can control the opening and closing of the irrigation hose through the water control device.

14. The surgical irrigation aspiration drainage assembly of claim 13 wherein the water control device has a base, a button, and a spring mechanism disposed between the base and the button, the base and the button cooperating via the spring mechanism.

15. The surgical irrigation aspiration drainage assembly of claim 14 wherein the base and the handle are constructed independently of each other or the base is formed by the structure of the handle itself.

16. The surgical irrigation aspiration drain assembly of claim 14 wherein the base is configured as a cylindrical structure with a window, the button is configured as a cylindrical structure with a pass-through, the button is partially embedded within the base, and the window and pass-through are aligned with each other and are traversed by an irrigation hose.

17. The surgical irrigation aspiration drainage assembly of claim 13 wherein the water control device is disposed on the handle.

18. The surgical irrigation aspiration drainage assembly of claim 1 wherein a stop clamp or flow rate regulator is provided on the irrigation connection tube.

19. The surgical irrigation aspiration drainage assembly of claim 13 wherein the irrigation hose is in fluid communication with the irrigation connection tube via a two-way through-connection secured to the handle.

20. The surgical irrigation aspiration drainage assembly of claim 11 wherein the irrigation branch has an irrigation hose equipped with a water control device by which an operator can control the opening and closing of the irrigation hose, the irrigation hose being in fluid communication with the annular cavity via a two-way bent fitting.

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