Flushing device for surgical instrument, and surgical instrument

Abstract

Disclosed in the present application are a flushing device for a surgical instrument, and a surgical instrument. The flushing device comprises a barrel assembly, wherein the barrel assembly has a length in a first direction, a cavity is formed in the barrel assembly, the barrel assembly is provided with a first opening and a second opening, and the first opening and the second opening allow the cavity to be in communication with the outside. The first opening is configured as an insertion port for the surgical instrument, and the first opening is located at an end of the barrel assembly in the first direction. The barrel assembly comprises a sealing part, and the insertion port is located in the sealing part.

Description

Flushing device for surgical instruments and surgical instruments

[0001] Cross-references

[0002] This application claims priority to Chinese patent application number 202310827639.6, filed on July 6, 2023, entitled “Flushing device for surgical instruments and surgical instruments,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the technical field of medical instruments, and in particular to a surgical instrument flushing device and a surgical instrument structure. Background Art

[0004] Surgical instruments used by surgical robots are typically expensive, and if they can be reused, this cost can be significantly reduced. However, medical instruments come into direct contact with the patient and must be sterilized before they can be reused. Prior to sterilization, the instruments must typically be cleaned to remove any fluids, particles, or other contaminants that may have entered the instrument during a previous procedure. However, it is impractical to completely disassemble complex surgical instruments, so the cleaning process involves flushing the inside of the surgical instrument directly with a cleaning fluid. However, the shape and structure of the central shaft of the surgical instrument make it difficult to flush.

[0005] In some cases, the internal flushing device for surgical instruments has a simple structure and a single function. It can only clean surgical instruments that are provided with a water injection pipe or a sealing structure, and its application range is relatively small.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a surgical instrument flushing device and a surgical instrument.

[0008] In a first aspect, an embodiment of the present application provides a flushing device for a surgical instrument, comprising: a barrel assembly, wherein the barrel assembly has a cavity inside, the barrel assembly is provided with a first mouth and a second mouth, the first mouth and the second mouth connect the cavity with the outside; the first mouth is configured as an insertion port of the surgical instrument, the first mouth is located at one end of the barrel assembly along the length direction; the barrel assembly includes a sealing portion, and the insertion port is located at the sealing portion.

[0009] In one embodiment, the first opening and the second opening are respectively located at two ends of the barrel assembly along the first direction.

[0010] In one embodiment, the barrel assembly includes: a first clamping part, which is sleeved on the outer periphery of the sealing part; a second clamping part, at least a portion of the second clamping part is arranged on the outer periphery of the first clamping part, and the second clamping part has a margin of movement between a first position and a second position along a first direction relative to the first clamping part; wherein, when the second clamping part is in the first position, the second clamping part is in contact and cooperate with the first clamping part, and the first clamping part is in contact and cooperate with the sealing part, and when the second clamping part is in the second position, the second clamping part is pressed and fitted with the first clamping part, and the second clamping part has a component force perpendicular to the first direction on the first clamping part, and the first clamping part is pressed and fitted with the sealing part, and the first clamping part has a component force perpendicular to the first direction on the sealing part.

[0011] In one embodiment, the first clamping portion is configured as a plurality of clamping plates, and the plurality of clamping plates are distributed around the periphery of the sealing portion.

[0012] In one embodiment, there is a gap between any two adjacent clamping plates.

[0013] In one embodiment, along a first direction extending from the cavity through the first opening to the outside, at least a portion of the surfaces where the first clamping portion and the second clamping portion cooperate are tapered.

[0014] In one embodiment, the stiffness of the sealing portion is smaller than the stiffness of the first clamping portion.

[0015] In one embodiment, the barrel assembly includes: a first locking portion, the first locking portion and the first clamping portion are configured as a one-piece structure, and the first locking portion is located on the side of the first clamping portion away from the first mouth portion; a second locking portion, the second locking portion and the second clamping portion are configured as a one-piece structure, and the second locking portion cooperates with the first locking portion to lock.

[0016] In one embodiment, the second locking portion is threadedly connected to the first locking portion.

[0017] In one embodiment, the barrel assembly includes: a base, the cavity is located in the base; a first clamping member, the first clamping portion is located in the first clamping member; a second clamping member, the second clamping member is arranged on the outer periphery of the first clamping member, the second clamping member is separated from the base, the second clamping portion is located in the second clamping member, and the first clamping member is fixedly connected to the base.

[0018] In one embodiment, at least a portion of the first clamping member is sleeved on at least a portion of the outer circumference of the base, and the first clamping member is threadedly connected to the base.

[0019] In one embodiment, at least a portion of the first clamping member is sleeved on at least a portion of the outer circumference of the base, and a portion where the first clamping member is connected to the base is clamped in the first direction.

[0020] In one embodiment, a slot is circumferentially formed on the base, the slot is close to one end of the base facing the first mouth, and the inner circumference of the first clamping member has a protrusion matching the slot.

[0021] In one embodiment, the cartridge assembly includes a sealing member having a length along the first direction, the sealing portion is located at one end of the sealing member, and the sealing member further includes an extending portion extending toward the cavity.

[0022] In one embodiment, the diameter of the inner through hole of the extension portion is not smaller than the diameter of the first mouth portion.

[0023] In one embodiment, the end portion of the extension portion opposite to the sealing portion is circumferentially tightly fitted to the inner wall of the cavity.

[0024] In one embodiment, an end portion of the extension portion abuts against an inner wall of the cavity.

[0025] In the second aspect, an embodiment of the present application provides a surgical instrument, comprising an instrument shaft tube, a working end and an instrument rear end, wherein the instrument shaft tube connects the working end and the instrument rear end, the instrument shaft tube comprises a circulation channel, and the instrument shaft tube is also provided with at least one circulation port, which enables the circulation channel to communicate with the outside of the shaft tube, and the circulation port is arranged close to the working end.

[0026] In the above scheme, in the flushing device of the surgical instrument, a cavity connected to the outside is formed inside the barrel assembly. The surgical instrument is inserted into the insertion port of the barrel assembly and is sealed by the sealing part. Water is injected from the second port during cleaning. The cleaning liquid can only enter the shaft tube of the surgical instrument from the execution end of the surgical instrument and flow along the shaft tube of the surgical instrument to the rear end of the surgical instrument and out without forming a loop or reflux in the cavity of the cleaning device, thereby achieving the purpose of rapid cleaning of the surgical instrument.

[0027] In this solution, the surgical operating part of the surgical instrument can be inserted into the flushing device of the surgical instrument, and the cleaning fluid enters the channel of the shaft tube through the gap and the flow port of the surgical operating part to achieve cleaning of the surgical instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] FIG1 is a schematic diagram showing the principle of cleaning surgical instruments by a cleaning device according to an embodiment of the present application;

[0030] FIG2 is a schematic structural diagram of a cleaning device according to an embodiment of the present application from one perspective;

[0031] FIG3 is a schematic structural diagram of the cleaning device in an embodiment of the present application from another perspective;

[0032] FIG4 is a schematic diagram of the exploded structure of the cleaning device in an embodiment of the present application;

[0033] FIG5 is a cross-sectional view of the exploded structure of the cleaning device in an embodiment of the present application;

[0034] FIG6 is a cross-sectional view of a cleaning device in an embodiment of the present application;

[0035] FIG7 is a schematic diagram of a portion of the structure of the cleaning device in two different states in an embodiment of the present application; and

[0036] FIG8 is a schematic diagram of the force state between the first clamping portion and the sealing portion in an embodiment of the present application.

[0037] The specific reference numerals are as follows:

[0038] 10: Flushing device 20: Cavity

[0039] 20a: The portion of the cavity located in the base 20b: The portion of the cavity located in the first clamping member

[0040] 20c: Portion located in the cavity of the second clamping member 20d: Through hole

[0041] 101: First mouth 102: Second mouth

[0042] 11: Seal 111: Sealing part

[0043] 112: Extension 12: Base

[0044] 121: slot 12a: first end

[0045] 12b: Second end 13: First clamping member

[0046] 131: First clamping part 131a: Clamping plate

[0047] 131b: Gap 132: First locking portion

[0048] 133: Connecting part 1331: Protrusion

[0049] 14: Second clamping member 141: Second clamping part

[0050] 142: Second locking portion 143: Groove

[0051] 20: Cavity 50: Surgical instruments

[0052] 51: shaft tube 52: working end

[0053] 53: Back end of the device 50a: Circulation channel

[0054] 50b: Flow port X: first direction

[0055] A: First position B: Second position DETAILED DESCRIPTION

[0056] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0058] Surgical robots are comprehensive medical devices that integrate multiple modern high-tech techniques and can be used for image-guided surgery and minimally invasive surgery. From the perspective of clinical medical application, they can be divided into laparoscopic surgical robots, orthopedic surgical robots, panvascular surgical robots, natural orifice surgical robots, percutaneous surgical robots, and other surgical robots.

[0059] However, surgical instruments used in surgical robots are usually expensive. If they can be reused, the cost of use will be greatly reduced. Generally, common internal flushing devices for surgical instruments have a simple structure and a single function. They can only clean surgical instruments with built-in water injection pipes, and their application range is relatively small.

[0060] The embodiment of the present application provides a flushing device for a surgical instrument and a surgical instrument structure. The flushing device for a surgical instrument provided in the embodiment of the present application is first introduced below.

[0061] 1 , an application scenario of a surgical instrument 50 and a flushing device 10 is shown in an embodiment of the present application. In an embodiment of the present application, the surgical instrument 50 may be a handheld surgical instrument or a surgical instrument for a surgical robot. The surgical instrument 50 may include an instrument shaft tube 51, a working end 52, and an instrument rear end 53. The instrument shaft tube 51 connects the working end 52 and the instrument rear end 53, and the instrument rear end 53 may drive the working end 52 to perform a surgical operation. In an embodiment of the present application, when the surgical instrument 50 needs to be cleaned, the flushing device 10 is used to cover the working end 52 and part of the shaft tube 51 of the surgical instrument to create a closed environment for the working end 52 and the shaft tube 51.

[0062] 2, 3 and 5, the flushing device 10 of the surgical instrument may include a barrel assembly, which may be formed by assembling a plurality of detachable structures. The barrel assembly has a cavity 20 inside, and the barrel assembly is provided with a first mouth 101 and a second mouth 102. The first mouth 101 and the second mouth 102 connect the cavity with the outside. In the barrel assembly, except for the first mouth 101 and the second mouth 102, the other structures of the barrel assembly do not have the feature of connecting the cavity 20 with the outside. The first mouth 101 can be set as the insertion port of the surgical instrument. When the execution end of the surgical instrument is inserted into the cavity 20 through the first mouth 101, the cavity 20 can only be connected to the outside through the second mouth 102.

[0063] In one embodiment, the barrel assembly includes a sealing portion 111, and the first opening 101 is located at the sealing portion 111. When the execution end of the surgical instrument and a portion of the shaft tube 51 are inserted into the cavity 20 through the first opening 101, the sealing portion 111 forms a circumferential covering on the shaft tube 51, ensuring that the cavity 20 of the instrument flushing device 10 can only communicate with the outside world through the second opening 102. When cleaning the surgical instrument 50, cleaning fluid is injected through the second opening 102. Since the barrel assembly forms a seal with the shaft tube 51 of the surgical instrument, the cleaning fluid can only enter the surgical instrument through the gap of the execution end component of the surgical instrument or the flow port 50b opened on the shaft tube component, and then flow out from the instrument rear end 53 of the surgical instrument, thereby achieving the purpose of cleaning the surgical instrument 50. In this embodiment, the first opening 101 serves as the insertion port for the surgical instrument, the second opening 102 serves as the liquid injection port, and the sealing portion 11 seals the connection between the cleaning device and the surgical instrument. This prevents the cleaning liquid from forming loops or backflowing within the device while ensuring that the cleaning liquid flows completely through the surgical instrument. Furthermore, during use, the cleaning liquid injection rate can be controlled, for example, by using high pressure injection, to ensure that the cleaning liquid fills every gap in the surgical instrument, effectively cleaning the surgical instrument.

[0064] In an embodiment of the present application, the first mouth portion 101 and the second mouth portion 102 of the flushing device 10 can be respectively located at both ends of the barrel assembly along the length direction. This ensures that the cleaning fluid circulates inside the cavity 20 of the flushing device without forming a dead angle. In addition, when cleaning the instrument, the surgical instrument and the instrument cleaning device can be erected, and the second mouth portion 102 is at the top position of the entire structure, and the water flow can flow in only one direction under its own weight. In some embodiments, the axis of the first mouth portion 101 and the axis of the second mouth portion 102 are collinear, and when the surgical instrument is inserted, they are also collinear with the axis of the shaft tube 51. In other embodiments, the setting position of the second mouth portion 102 can also be arbitrary, as long as the circulation function of the cleaning fluid is met.

[0065] 4 to 7 , there are shown schematic exploded views of a surgical instrument cleaning device 10 , which may include a base 12 , a sealing member 11 , a first clamping member 13 , and a second clamping member 14 .

[0066] The base 12 can be generally a cylindrical structure with a cavity 20a defined therein. The cylindrical shape of the base 12 has a certain length in the first direction X. The base 12 includes a first end 12a and a second end 12b opposite to each other in the first direction X. The first end 12a of the base 12 defines a hole, which forms the second opening 102. The second end 12b of the base 12 is open and is adapted to connect to the first clamping member 13.

[0067] The first clamping member 13 can be generally cylindrical in structure, defining a cavity 20b extending therethrough along the first direction X. In practice, the first clamping member 13 is sleeved around the outer periphery of the sealing member 11. The first clamping member 13 includes a first clamping portion 131, a first locking portion 132, and a connecting portion 133 for securing the first clamping portion 131 to the base 12. The connecting portion 133 can be threaded, snap-fit, or rigidly connected to the base 132.

[0068] In one embodiment, the connecting portion 133 is sleeved around the outer periphery of the open end of the base 12, and the connecting portion 133 and the base 12 are threadedly connected. Referring to Figures 5 and 6, in one embodiment, the connecting portion 133 is sleeved around the outer periphery of the open end of the base 12, and the base 12 is circumferentially defined with a retaining groove 121, which is located near the second end 12b of the base 12. The connecting portion 133 includes a protrusion 1331 that mates with the retaining groove 121. The portion where the connecting portion 133 connects to the base 12 forms a snap connection in the first direction X. In some embodiments, the first clamping member 13 and the base 12 may also be secured together using other connecting members.

[0069] When in use, the connection between the first clamping member 13 and the base 12 is completely fixed. In the embodiment of the present application, the structure of the connecting portion 133 may not be limited.

[0070] In this embodiment, the first clamping portion 131 and the first locking portion 132 are two different parts of the same component.

[0071] Alternatively, in some embodiments, the first clamping member 13 may also be a split structure, that is, the first clamping portion 131 and the first locking portion 132 are two different components.

[0072] Alternatively, in some embodiments, a portion of the first locking portion 132 may also directly form a one-piece structure with the base 12 .

[0073] Alternatively, in some embodiments, the first clamping portion 131 , the first locking portion 132 and the base 12 may also be a one-piece structure.

[0074] The specific structures of the first clamping portion 131 and the first locking portion 132 will be described in detail later.

[0075] The second clamping member 14 can be roughly a cylindrical structure, with a cavity 20c extending through it along the first direction X. The second clamping member 14 can include a second clamping portion 141 and a second locking portion 142. During implementation, the second clamping member 14 is sleeved on the outer periphery of the partial structure of the first clamping member 13, for example, the second clamping portion 141 is located on the outer periphery of the first clamping portion 131, and the second locking portion 142 is located on the outer periphery of the first locking portion 132. In an embodiment, the second clamping member 14 forms a movable relationship with the first clamping member 13, and the second clamping member 14 can produce a partial structural dislocation movement relative to the first clamping member 13 along the first direction X, so that the second clamping member 14 or the first clamping portion 141 can be located in the first position A or the second position B. The movement of the second clamping member 14 can be a spiral rotation relative to the first clamping member 13, or a linear movement. When the second clamping member 14 moves relative to the first clamping member 13 or is in a different position, the second clamping portion 141 exerts varying or different forces on the first clamping portion 131, causing the structural state of the first clamping portion 131 to change. The specific connection structure between the second clamping member 14 and the first clamping member 13 will be described in detail below.

[0076] The sealing member 11 may be roughly a cylindrical structure, and a through hole 20d is provided inside thereof, which passes through the sealing member 11 along the first direction X. This embodiment is described using a sealing member 11 having a cylindrical outer shape. The sealing member 11 may include a sealing portion 111 and an extension portion 112. The sealing portion 111 is located at one end of the sealing member 112. The extension portion 112 is fixedly connected or passively fixedly connected to the second end of the base 12. In implementation, there is no possibility of a gap between the extension portion 112 of the sealing member 11 and the base 12, and there is basically no possibility of relative movement between the extension portion 112 of the sealing member 11 and the base 12.

[0077] In some embodiments, the sealing member 2 is made of a material with deformation capability, such as rubber, silicone, etc.

[0078] In this embodiment, the cavity 20a defined by the base 12 and the through hole 20d defined by the sealing member 11 are both part of the cavity 20. The cavity 20b defined by the first clamping member and the cavity 20c defined by the second clamping member are not connected to the cavity 20a and the through hole 20d due to the installation of components. In other embodiments, depending on the structural arrangement or connection relationship between the first clamping portion 131 / first clamping member 13, the second clamping portion 141 / second clamping member 14 and the base 12, the sealing portion 111 / sealing member 11, the cavity 20c and the cavity 20b may also constitute part of the cavity 20. In the embodiment of the present application, the cavity 20 is a space for accommodating the working end 52 and the shaft tube 51 of the surgical instrument 50, and there is sufficient space between the inner wall of the cavity 20 and the working end 52 or the shaft tube 51 for the flow of cleaning fluid, which meets the conditions of the embodiment of the present application, and no other limitations are imposed on the specific structure of the cavity 20.

[0079] The clamping and sealing functions of the first clamping member 13, the second clamping member 14, and the sealing member 11 are described in detail below. Referring to Figures 5, 7, and 8, in an embodiment of the present application, the first clamping portion 131 is sleeved around the outer periphery of the sealing portion 111, and at least a portion of the second clamping portion 141 is disposed around the outer periphery of the first clamping portion 131. The second clamping portion 141 has a margin of movement relative to the first clamping portion 131 between a first position A and a second position B along the first direction X. Moreover, when the second clamping portion 141 is in the first position A, the second clamping portion 141 contacts and cooperates with the first clamping portion 131, and the first clamping portion 131 contacts and cooperates with the sealing portion 111. When the second clamping portion 141 is in the second position B, the second clamping portion 141 is pressed and fitted with the first clamping portion 131. The second clamping portion 141 has a pressure f on the first clamping portion 131. The pressure f includes a component force perpendicular to the first direction X, which causes the first clamping portion 131 to deform, and thereby causes the first clamping portion 131 to generate a component force perpendicular to the first direction X on the sealing portion 111, and the first clamping portion 131 is pressed and fitted with the sealing portion 111.

[0080] In the embodiment of the present application, since the working end 52 of the surgical instrument 50 needs to be inserted through the first opening 101 of the sealing portion 111, and since the working end 52 has an irregular structure, in order to facilitate the smooth insertion of the working end 52, the sealing portion 111 may leave a clearance margin to allow the working end 52 to be smoothly inserted. If the first opening 101 of the sealing portion 111 is adapted to the size or tightness of the working end 52, the adaptability of the first opening 101 to the shaft tube 51 of the surgical instrument 50 may not be high enough, resulting in the sealing effect of the sealing portion 111 not being significantly improved. In this embodiment, when the second clamping member 14 or the second clamping portion 141 is in the first position A, the second clamping portion 141 exerts little or no pressure on the first clamping portion 131 in a direction perpendicular to the first direction X. Accordingly, the first clamping portion 131 also exerts little or no pressure on the sealing portion 111 in a direction perpendicular to the first direction X. At this time, the sealing portion 111 is in its natural state, facilitating the insertion of the working end 52 and the shaft tube 51 of the surgical instrument 50. After the working end 52 and the shaft tube 51 are fully inserted, the second clamping portion 141 moves to the second position B. The second clamping portion 141 exerts pressure on the first clamping portion 131 in a direction perpendicular to the first direction X, causing the first clamping portion 131 to slightly deform. This in turn exerts pressure on the sealing portion 111 in a direction perpendicular to the first direction X, causing the sealing portion 111 to deform, squeezing or occupying the gap between the sealing portion 111 and the shaft tube 51, thereby achieving a sealing effect for the sealing portion 111.

[0081] In one embodiment, returning to Figures 4 and 5, in some embodiments, the first clamping member 13 may include a plurality of splints 131a, and the plurality of splints 131a are distributed around the periphery of the sealing portion. At least a portion of the area of ​​the plurality of splints forms the first clamping portion 131. In the embodiment, "plurality" means at least 2. The specific number of splints 131a may not be limited. Four splints are schematically shown in Figure 4. The plurality of splints 131a can be subjected to force and deformed individually, and can disperse the stress of the second clamping portion 141 on the first clamping portion 131 to achieve the deformation effect of the first clamping portion 131. Furthermore, there is a gap 131b between any two adjacent splints 131a. This makes the deformation degree of the plurality of splints 131a greater and all gather inward.

[0082] The second clamping portion 141 is located on the inner wall of the second clamping member 14. Along the first direction X, from the second opening 102 to the first opening 101, the inner diameter of the portion of the inner wall of the second clamping member 14 gradually decreases, forming the second clamping portion 141. Alternatively, the second clamping portion 141 is a portion of a tapered inner wall. When the second clamping part 141 is in the first position A, the conical surface of the second clamping part 141 contacts and cooperates with the clamping plate 131a of the first clamping part 131. The diameter of the area located in the second clamping part 141 and cooperating with the first clamping part 131 is larger. When the second clamping part 141 moves from the first position A to the second position B, the part of the second clamping part 141 that cooperates with the first clamping part 131 gradually narrows. The second clamping part 141 generates a radial force on the first clamping part 131, and the radial direction is perpendicular to the first direction X, thereby gradually shrinking the diameter of the first clamping part 131, thereby generating pressure on the sealing part 111 and shrinking the diameter of the sealing part 111.

[0083] In some embodiments, the first clamping portion 131 may also be provided with a tapered surface. As shown in Figure 5, along the first direction X, from the second opening 102 to the first opening 101, the outer diameter of a portion of the plurality of clamping plates 131a gradually decreases, and the wall surface of this portion forms a tapered surface. The tapered surface of the second clamping portion 141 cooperates with the tapered surface of the first clamping portion 131, so that the first clamping portion 131 and the second clamping portion 141 form a surface-to-surface fit, better dissipating the stress of the first clamping portion 131 and improving the sealing effect of the flushing device.

[0084] The locking functions of the first clamping member 13, the second clamping member 14 and the sealing member 11 are described in detail below. Referring to Figures 4, 5 and 6, in an embodiment of the present application, when the second clamping member 14 is located at the second position B, the second clamping portion 141 presses the first clamping portion 131, and then presses the sealing portion 111 to form a seal. In order to keep the second clamping portion 141 in the state of the second position B, the first clamping portion 131 and the second clamping portion 141 can cooperate to lock. In an embodiment, the first locking portion 132 is located on the side of the first clamping portion 131 away from the first mouth portion 101, that is, the first clamping portion 131 and the first locking portion 132 are arranged along the first direction X, from the first mouth portion 101 to the second mouth portion 102. The second locking portion 142 is located on a side of the second clamping portion 141 away from the first opening 101. That is, the second clamping portion 141 and the second locking portion 142 are arranged along the first direction X, from the first opening 101 to the second opening 102. The second locking portion 142 and the first locking portion 132 cooperate to lock.

[0085] In some embodiments, the second locking portion 142 and the first locking portion 132 may be threadedly locked. For example, the first clamping member 13 may be provided with external threads to form the first locking portion 132, and the second clamping member 14 may be provided with internal threads to form the second locking portion 142. The first locking portion 132 and the second locking portion 142 may be threadedly engaged. When the second clamping member 14 is in the second position B, the second locking portion 142 and the first locking portion 132 are threadedly locked, causing the second clamping portion 141 and the first clamping portion 131 to compress the sealing portion 111, causing deformation.

[0086] In some embodiments, the maximum inner diameter of the second clamping portion 141 is not greater than the inner diameter of the second locking portion 142 , and the maximum outer diameter of the first clamping portion 131 is not greater than the outer diameter of the first locking portion 132 .

[0087] In some embodiments, the first locking portion 132 may also be configured as a partial area of ​​a plurality of clamping plates. That is, the first locking portion 132 may also adaptively deform and compress the sealing portion according to the locking relationship between the second locking portion 142 and the first locking portion 132 .

[0088] In some embodiments, the second locking portion 142 and the first locking portion 132 may also be snap-fit ​​or locked in other ways.

[0089] In some embodiments, the first clamping portion 131 and the first locking portion 132 may be configured as a split structure, that is, the first clamping member 13 may be a fixed combination of two components.

[0090] In some embodiments, the second clamping portion 141 and the second locking portion 142 may be provided as a split structure, that is, the second clamping member 14 may be a fixed combination of two parts.

[0091] 5 , in some embodiments, a groove 143 is further circumferentially defined on the inner wall of the second clamping member 14. The groove 143 is located between the second clamping portion 141 and the second locking portion 142. When the second clamping portion 141 / second clamping member 14 changes from the first position A to the second position B, the end of the second locking portion 142 near the first opening 101 is substantially located in the groove 143.

[0092] 5 and 6 , in an embodiment of the present application, the seal 11 includes a sealing portion 111 and an extension portion 112. The seal 11 has a certain length along the first direction X, and the sealing portion 111 is located at one end of the seal 11. The extension portion 112 extends toward the cavity 20. In other words, the extension portion 112 extends from the sealing portion 111 toward the second mouth portion 102. The seal 11 is provided with a through hole 20d along the first direction X, so that the cavity 20 is connected to the outside world. In some embodiments, the aperture of the through hole 20d located in the extension portion 112 is not less than the aperture of the first mouth portion 102. In other words, the inner diameter of the extension portion 112 is not less than the aperture of the first mouth portion 101. In Figure 5 , the aperture ko of the internal through hole of the extension portion 112 is roughly equal to the aperture of the first mouth portion. In Figure 6 , the aperture of the internal through hole of the extension portion 112 is larger than the aperture of the first mouth portion 101.

[0093] In some embodiments, since the first clamping member 13 , the second clamping member 14 and the base 12 are separate structures, there may be gaps between them. The extension portion 112 of the sealing member 11 can form an effective seal.

[0094] In some embodiments, the end portion of the extension portion 112 opposite to the sealing portion 111 is circumferentially tightly fitted against the inner wall of the cavity 20 .

[0095] In some embodiments, referring to FIG5 , the end of the extension portion 112 abuts against the base 12. The extension portion 112 seals the connection portion between the base 12 and the first clamping member. The open portion of the base 12 may include a step surface 122, which is located at the second end 12b of the base 12 and is recessed toward the cavity 20a. The end of the extension portion 112 away from the sealing portion 111 may abut against the step surface 122, so that the open portion of the base 12 completely covers the end of the extension portion 112, or in other words, the extension portion 112 is completely sealed with the base 12. Furthermore, because the second clamping member 14 and the first clamping member 13 form a constraint on the sealing member 11, the strength of the sealing member 11 is enhanced and the sealing member 11 is more tightly abutted against the base 12.

[0096] In some embodiments, the stiffness of the sealing member 11 is less than the stiffness of the first clamping member 13 .

[0097] In some embodiments, the second mouth portion 102 is in the form of an inner hole with multiple sections of successively decreasing inner diameters. For example, the second mouth portion 102 includes a portion 102a facing the outside and a portion 102b facing the inner cavity. The inner diameter of the portion 102a facing the outside is larger than that of the portion 102b facing the inner cavity. This allows the injection nozzle to extend into the portion 102a facing the outside and abut against the transition step surface of the portion 102b facing the inside, thereby achieving alignment of the injection nozzle with the second mouth portion 102 and stable operation during injection.

[0098] Returning to Figure 1, at least one flow opening 50b is provided at each axial end of the shaft tube 51 of the surgical instrument 50, and the specific number of the flow openings 50b is not limited. For example, multiple flow openings 50b are provided circumferentially or axially at a position of the shaft tube 51 near the working end 52, and a flow opening is provided at a position near the shaft tube 51 at the rear end 53 of the instrument. All the flow openings 50b can be directly or indirectly connected to the flow channel 50a inside the shaft tube 51 to facilitate the circulation of the cleaning liquid.

[0099] The surgical instrument 50 and the flushing device 10 of the embodiment of the present application can be used in two ways:

[0100] The first way of using: the working end 52 and part of the shaft tube 51 of the surgical instrument 50 are inserted into the cleaning device 10 so that the flow ports of the working end 52 and the shaft tube 51 are both located in the cavity 20, and the cleaning device 10 is placed higher than the rear end 53 of the surgical instrument 50. Referring to Figure 1, the cleaning liquid is injected into the second port 102 of the cleaning device 10, and the cleaning liquid flows along the shaft tube to the rear end 53 of the instrument, and then flows out from the rear end 53 of the instrument.

[0101] The second way of use: the working end 52 and part of the shaft tube 51 of the surgical instrument 50 are inserted into the cleaning device 10, so that the flow ports of the working end 52 and the shaft tube 51 are both located in the cavity 20, and the cleaning device 10 is placed below the rear end 53 of the surgical instrument 50, and the cleaning liquid is injected into the rear end 53 of the surgical instrument. The cleaning liquid flows along the shaft tube 51 to the working end 52, and then flows out from the second mouth 102 of the cleaning device 10.

[0102] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. A flushing device for surgical instruments, wherein: include: A barrel assembly, wherein the barrel assembly has a length along a first direction, the barrel assembly has a cavity inside, the barrel assembly is provided with a first opening and a second opening, and the first opening and the second opening make the cavity communicate with the outside; The first opening is configured as an insertion opening for the surgical instrument, and the first opening is located at one end of the barrel assembly along a first direction; and The cartridge assembly includes a sealing portion, and the insertion port is located at the sealing portion.

2. The surgical instrument flushing device according to claim 1, wherein: The first mouth portion and the second mouth portion are respectively located at two ends of the barrel assembly along a first direction.

3. The flushing device for surgical instruments according to claim 1 or 2, wherein: The cartridge assembly comprises: a first clamping portion, wherein the first clamping portion is sleeved on the outer periphery of the sealing portion; a second clamping portion, at least a portion of which is disposed on the outer periphery of the first clamping portion, and the second clamping portion has a margin of movement between a first position and a second position along a first direction relative to the first clamping portion; Among them, when the second clamping part is in the first position, the second clamping part is in contact and cooperation with the first clamping part, and the first clamping part is in contact and cooperation with the sealing part; when the second clamping part is in the second position, the second clamping part is pressed and cooperated with the first clamping part, and the second clamping part has a component force perpendicular to the first direction on the first clamping part, and the first clamping part is pressed and cooperated with the sealing part, and the first clamping part has a component force perpendicular to the first direction on the sealing part.

4. The surgical instrument flushing device according to claim 3, wherein: The first clamping portion is configured as a plurality of clamping plates, and the plurality of clamping plates are distributed on the outer circumference of the sealing portion.

5. The surgical instrument flushing device according to claim 4, wherein: There is a gap between any two adjacent clamping plates.

6. The flushing device for surgical instruments according to any one of claims 3 to 5, wherein: Along a first direction extending from the cavity through the first opening toward the outside, at least a portion of the surfaces where the first clamping portion and the second clamping portion cooperate are in a tapered trend.

7. The flushing device for surgical instruments according to any one of claims 3 to 6, wherein: The sealing portion has a stiffness smaller than that of the first clamping portion.

8. The flushing device for surgical instruments according to any one of claims 3 to 7, wherein: The cartridge assembly comprises: A first locking portion, wherein the first locking portion and the first clamping portion are configured as a one-piece structure, and the first locking portion is located at a side of the first clamping portion away from the first mouth portion; The second locking portion and the second clamping portion are configured as a one-piece structure, and the second locking portion cooperates with the first locking portion for locking.

9. The flushing device for surgical instruments according to claim 8, wherein: The second locking portion is threadedly connected to the first locking portion.

10. The flushing device for surgical instruments according to claim 8 or 9, wherein: The cartridge assembly comprises: a base, wherein the cavity is located on the base; a first clamping member, wherein the first clamping portion is located on the first clamping member; A second clamping member, wherein the second clamping member is arranged on the outer periphery of the first clamping member, the second clamping member and the base are arranged separately, the second clamping portion is located in the second clamping member, and the first clamping member is fixedly connected to the base.

11. The surgical instrument flushing device according to claim 10, wherein: At least a portion of the first clamping member is sleeved on at least a portion of the outer periphery of the base, and the first clamping member is threadedly connected to the base.

12. The flushing device for surgical instruments according to claim 10 or 11, wherein: At least a portion of the first clamping member is sleeved on at least a portion of the outer periphery of the base, and a portion where the first clamping member is connected to the base is clamped in the first direction.

13. The flushing device for surgical instruments according to claim 12, wherein: The base is circumferentially provided with a slot, the slot being close to one end of the base facing the first mouth, and the inner circumference of the first clamping member is provided with a convex portion matching the slot.

14. The flushing device for a surgical instrument according to any one of claims 1 to 13, wherein: The cartridge assembly comprises: The sealing member has a length along the first direction, the sealing portion is located at one end of the sealing member, and the sealing member further includes an extending portion extending toward the cavity.

15. The flushing device for surgical instruments according to claim 14, wherein: The aperture of the inner through hole of the extension portion is not smaller than the aperture of the first mouth portion.

16. The flushing device for surgical instruments according to claim 14 or 15, wherein: The end portion located at the extension portion and opposite to the sealing portion is tightly fitted with the inner wall of the cavity in the circumferential direction.

17. The flushing device for a surgical instrument according to any one of claims 14 to 16, wherein: The end of the extension portion abuts against the inner wall of the cavity.

18. A surgical instrument, wherein: It includes an instrument shaft tube, a working end and an instrument rear end, wherein the instrument shaft tube connects the working end and the instrument rear end, the instrument shaft tube includes a circulation channel, and the instrument shaft tube is also provided with at least one circulation port, which enables the circulation channel to communicate with the outside of the shaft tube, and the circulation port is arranged close to the working end.

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