Irrigation mechanism of tissue forceps and tissue forceps

Abstract

The utility model relates to a lavage mechanism of tissue forceps and the tissue forceps, comprising: a housing, the housing comprising an accommodating cavity for liquid circulation and a liquid inlet hole communicated with the accommodating cavity; the end cover is connected with one end of the shell; the transmission rod penetrates through the shell, and the two ends of the transmission rod are used for being connected with a driving assembly and a clamping assembly of the tissue forceps respectively; one end of the sleeve is connected with the shell, the transmission rod is located in the sleeve, a channel used for liquid circulation is formed between the transmission rod and the sleeve, and the channel is communicated with the containing cavity; the push plate is located in the containing cavity and is in sliding connection with the transmission rod, an elastic piece is further arranged between the push plate and the end of the shell, the two ends of the elastic piece abut against the push plate and the end of the shell respectively, and a first space used for containing the liquid suction piece is formed between the push plate and the end cover. According to the lavage mechanism of the tissue forceps and the tissue forceps, operation such as effusion extraction and lavage can be carried out, and meanwhile more space is prevented from being occupied.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigating mechanisms, in particular to an irrigating mechanism of a tissue forceps and the tissue forceps. Background Art

[0002] Minimally invasive surgery is currently a common surgical method in orthopedics. Minimally invasive surgery involves entering the patient's body from the side or rear, and performing the procedure within the safe working triangle. Tissue forceps are typically used to remove the tissue to be removed. During tissue removal, fluid extraction and irrigation are necessary. Currently, this is primarily accomplished through external tubing inserted into the vicinity of the tissue. However, this method requires the tubing to occupy a certain amount of space, compressing the surgical operating space. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to provide an irrigation mechanism of a tissue forceps and a tissue forceps, which can avoid taking up too much space while performing operations such as extracting accumulated fluid and irrigation.

[0004] In order to solve the above technical problems, the utility model provides an irrigation mechanism for tissue forceps, comprising: a shell, the shell comprising a accommodating chamber for liquid circulation and a liquid inlet hole connected to the accommodating chamber; an end cover connected to one end of the shell; a transmission rod passing through the shell, the two ends of the transmission rod being respectively used to connect with the driving assembly and the clamping assembly of the tissue forceps; a sleeve, one end of the sleeve being connected to the shell, the transmission rod being located in the sleeve, a channel for liquid circulation being formed between the transmission rod and the sleeve, and the channel being connected to the accommodating chamber; a push plate, the push plate being located in the accommodating chamber and being slidably connected to the transmission rod, an elastic member being further provided between the push plate and the end portion of the shell, the two ends of the elastic member respectively abutting against the end portions of the push plate and the shell, and a first space for accommodating a liquid-absorbing member being formed between the push plate and the end cover.

[0005] In one embodiment of the present invention, the housing is connected to a joint, the joint is communicated with the liquid inlet, and the liquid inlet is located between the end of the push plate moving path and the end of the housing.

[0006] In one embodiment of the present invention, a sealing block is provided on the side wall of the joint, and the sealing block extends in a threaded shape along the side wall of the joint.

[0007] In one embodiment of the present invention, the housing is further provided with an opening, the opening corresponds to the first spatial position, and the opening is used for the liquid-absorbing component to pass through.

[0008] In one embodiment of the present invention, the push plate is further connected to a connecting plate, which passes through the opening and can abut against an edge of the opening.

[0009] In one embodiment of the present invention, a sealing plug is further included, and the sealing plug is engaged with the opening.

[0010] In one embodiment of the present invention, the opening and the liquid inlet are located on opposite sides of the housing, and the transmission rod passes through the end of the housing and the end cover.

[0011] The utility model also provides a tissue forceps, comprising the irrigation mechanism of the tissue forceps, and further comprising a driving component and a clamping component.

[0012] In one embodiment of the present invention, the drive assembly is connected to the end cover of the irrigation mechanism of the tissue forceps, and the output end of the drive assembly is connected to the end of the transmission rod.

[0013] In one embodiment of the present invention, the clamping assembly is connected to the end of the transmission rod of the irrigation mechanism of the tissue forceps away from the end cover, and the clamping assembly includes a clamping member, and the clamping member includes a clamping groove, and the edge of the clamping groove is provided with a liquid flow groove.

[0014] The above technical solution of the utility model has the following advantages compared with the prior art:

[0015] The present invention provides an irrigation mechanism for a tissue forceps and tissue forceps, which communicates through a housing cavity with a passage between a drive rod and a sleeve, thereby enabling cleaning and extraction of accumulated fluid without occupying a large amount of space. The push plate and the elastic member cooperate to secure the wicking element within the first space, thereby allowing the wicking element to absorb cleaning fluid and accumulated fluid flowing out of the gaps between the push plate, the housing, and the drive rod, preventing the cleaning fluid and accumulated fluid from seeping into the drive assembly of the tissue forceps, thereby preventing contamination or even damage to the drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0017] Figure 1 This is a structural diagram of an irrigation mechanism of a tissue forceps of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the shell;

[0019] Figure 3 yes Figure 1 Schematic diagram of part of the structure;

[0020] Figure 4 is a structural diagram of the clamping piece.

[0021] Description of the drawings: 1, the shell; 2, the sleeve; 3, the drive assembly; 4, the clamping assembly; 5, the transmission rod; 11, the end cover; 12, the joint; 13, the sealing block; 14, the opening; 15, the sealing plug; 16, the push plate; 17, the elastic member; 31, the trigger; 41, the clamping piece; 42, the liquid passage; 43, the clamping groove. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the example is not as the limitation of the utility model.

[0023] Example one

[0024] Referring to Figures 1 to 3 As shown in the utility model discloses a kind of lavage mechanism of tissue forceps, comprising: shell 1, the shell 1 includes the containing cavity for liquid flow and the liquid inlet hole being communicated with the containing cavity;End cover 11, with the one end of the shell 1 is connected;Transmission rod 5, through the shell 1, the two ends of the transmission rod 5 are used for being connected with the drive assembly 3 and the clamping assembly 4 of tissue forceps respectively;Sleeve 2, one end of the sleeve 2 is connected with the shell 1, the transmission rod 5 is located in the sleeve 2, the transmission rod 5 and the sleeve 2 between form the passageway for liquid flow, the passageway is communicated with the containing cavity;Push plate 16, the push plate 16 is located in the containing cavity and is slidably connected with the transmission rod 5, the push plate 16 and the end of the shell 1 are further provided with elastic member 17, the two ends of the elastic member 17 are respectively abutted with the push plate 16 and the end of the shell 1, the push plate 16 and the end cover 11 between form the first space for containing liquid suction member.

[0025] The lavage mechanism of tissue forceps of the embodiment, by liquid inlet, inject cleaning fluid into the containing cavity of shell 1, cleaning fluid flows to the clamping assembly 4 of tissue forceps along the passageway between transmission rod 5 and sleeve 2, and cleaning fluid flows out through clamping assembly 4 to complete cleaning. By generating negative pressure to liquid inlet, so that the effusion flows out from liquid inlet in turn through passageway and containing cavity, to complete the extraction of effusion. Place liquid suction member in the first space between push plate 16 and end cover 11, so that the liquid suction member can suck the cleaning fluid and effusion flowing out from the gap between push plate 16 and shell 1 and transmission rod 5, to prevent the cleaning fluid and effusion from seeping into the drive assembly 3 of tissue forceps, thereby preventing the drive assembly 3 from being contaminated or even damaged.

[0026] The shell 1 is cylindrical in shape as a whole, and the interior of the shell 1 constitutes a receiving chamber for liquid circulation. The side wall of the shell 1 is provided with a liquid inlet hole connected to the receiving chamber, and the external device can be connected to the receiving chamber through the liquid inlet hole, so as to perform the operation of extracting the accumulated fluid and irrigating. The shell 1 is connected to a connector 12, and the connector 12 is connected to the liquid inlet hole. The connector 12 is tubular, so that the output end of the external device can be connected to the connector 12, so as to facilitate communication with the receiving chamber. Preferably, the connector 12 is made of a waterproof material with elastic deformation properties, such as rubber. The side wall of the connector 12 is provided with a sealing block 13, and the sealing block 13 is strip-shaped and extends in a threaded shape along the side wall of the connector 12. The output end of the external device can be threadedly connected or clamped to the connector 12 through the sealing block 13, so as to prevent water leakage between the connector 12 and the output end of the external device.

[0027] The end cap 11 is connected to the opening 14 end of the shell 1. Specifically, the end cap 11 is detachably connected to the opening 14 end of the shell 1. A sealing ring is provided at the edge of the end cap 11 and the opening 14 end of the shell 1 to prevent liquid from flowing out of the gap between the end cap 11 and the shell 1. The transmission rod 5 is used for transmission of the tissue forceps. The two ends of the transmission rod 5 are respectively used to connect with the drive assembly 3 and the clamping assembly 4 of the tissue forceps. The transmission rod 5 is arranged to pass through the shell 1. Specifically, the transmission rod 5 passes through the end cap 11 and the bottom end of the shell 1, and the penetration position of the transmission rod 5 is located at the center position of the end cap 11 and the bottom end of the shell 1. At the same time, the transmission rod 5 and the end cap 11 and the bottom end of the shell 1 can slide relative to each other.

[0028] The push plate 16 is located in the accommodating cavity of the housing 1 and is slidably connected to the transmission rod 5. Specifically, the push plate 16 is sleeved on the transmission rod 5. An elastic member 17 is also provided between the push plate 16 and the bottom end of the housing 1. The elastic member 17 can be regarded as a spring. The elastic member 17 is sleeved on the transmission rod 5. The two ends of the elastic member 17 respectively abut against the ends of the push plate 16 and the housing 1. A first space for the liquid absorbent is formed between the push plate 16 and the end cover 11. After the end cover 11 is disassembled and separated from the housing 1, a liquid absorbent is placed on the side of the end cover 11 close to the push plate 16. The liquid absorbent can be regarded as a liquid absorbent cotton. Through the cooperation of the elastic member 17 and the push plate 16, the liquid absorbent can be pressed by the push plate 16, thereby fixing the liquid absorbent. Preferably, the liquid inlet hole is located between the end of the moving path of the push plate 16 and the end of the housing 1, that is, the liquid inlet hole is located between the end of the moving path of the push plate 16 close to the bottom end of the housing 1 and the bottom end of the housing 1, thereby preventing liquid passing through the liquid inlet hole from directly entering the first space.

[0029] The end cover 11 can also be sealingly fixedly connected with the shell 1, so that the end cover 11 and the shell 1 are better sealed. The shell 1 is also provided with an opening 14 corresponding to the first space position, and the opening 14 is used for the liquid suction member to pass through, so that the liquid suction member can be inserted into the first space through the opening 14, and the liquid suction member can also enter the first space without disassembling the end cover 11 and the shell 1. Preferably, the push plate 16 is also connected with a connecting plate, the connecting plate is arranged through the opening 14 and extends outward from the opening 14, the connecting plate can abut against the edge of the opening 14, the connecting plate is pulled to drive the push plate 16 to move, so that the elastic member 17 is compressed, the liquid suction member is conveniently inserted into the first space, and the connecting plate can abut against the edge of the opening 14, so that the movement position of the push plate 16 is limited. Preferably, the sealing plug 15 is also included, the sealing plug 15 is made of a waterproof material with elastic deformation properties, such as rubber, the sealing plug 15 is clamped with the opening 14, so that the liquid is prevented from flowing out of the opening 14. Preferably, the opening 14 and the liquid inlet hole are located on opposite sides of the shell 1, so that the sealing plug 15 and the connector 12 do not interfere with each other in use.

[0030] One end of the sleeve 2 is connected with the shell 1, the transmission rod 5 is located in the sleeve 2, and a gap exists between the side wall of the transmission rod 5 and the inner wall of the sleeve 2, so as to form a channel for liquid flow, the channel is communicated with the containing cavity, and the end, away from the shell 1, of the sleeve 2 extends to the clamping assembly 4 of the tissue forceps, so that the liquid can flow from the containing cavity to the clamping assembly 4 along the channel.

[0031] In use, the output end of the external device is connected with the connector 12, the liquid suction member is placed in the first space between the push plate 16 and the end cover 11, the external device injects the cleaning liquid into the containing cavity of the shell 1 through the liquid inlet, the cleaning liquid flows to the clamping assembly 4 of the tissue forceps along the channel between the transmission rod 5 and the sleeve 2, and the cleaning liquid flows out of the clamping assembly 4, so that the cleaning is completed. Negative pressure is generated on the liquid inlet, so that the accumulated liquid flows out of the liquid inlet through the channel and the containing cavity in sequence, and the extraction of the accumulated liquid is completed.

[0032] Embodiment two

[0033] The utility model also provides a tissue forceps, including the irrigation mechanism of tissue forceps in embodiment one, still include drive assembly 3 and clamping assembly 4.

[0034] The drive assembly 3 is connected with the end cover 11 of the irrigation mechanism of tissue forceps, and the liquid suction member can prevent the liquid from entering the drive assembly 3 through the gap between the end cover 11 and the transmission rod 5. The output end of the drive assembly 3 is connected with the end of the transmission rod 5, and the drive assembly 3 includes a trigger 31, which controls the clamping and closing actions of the clamping assembly 4 by pushing the trigger 31.

[0035] Reference Figure 4As shown, the clamping assembly 4 is connected to the end of the transmission rod 5 of the irrigation mechanism of the tissue forceps away from the end cover 11. The clamping assembly 4 includes clamping parts 41 that can clamp each other. The clamping surface of the clamping part 41 includes an arc-shaped clamping groove 43. The edge of the clamping groove 43 is provided with a liquid flow groove 42. The liquid in the channel between the transmission rod 5 and the sleeve 2 can flow out through the liquid flow groove 42, thereby completing the cleaning of the tissue, and the accumulated fluid can enter the channel between the transmission rod 5 and the sleeve 2 through the liquid flow groove 42, thereby completing the extraction of the accumulated fluid.

[0036] The present invention provides an irrigation mechanism and tissue forceps, which communicate with the passage between the housing 1 and the drive rod 5 and the cannula 2 via a receiving chamber. This allows for cleaning and extraction of accumulated fluid without occupying a large amount of space, and also provides a larger operating space for surgery. The push plate 16 and the elastic member 17 cooperate to secure the wick within the first space, allowing the wick to absorb cleaning fluid and accumulated fluid flowing out of the gap between the push plate 16, the housing 1, and the drive rod 5, preventing the cleaning fluid and accumulated fluid from seeping into the drive assembly 3 of the tissue forceps, thereby preventing contamination or even damage to the drive assembly 3.

[0037] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An irrigation mechanism for a tissue forceps, characterized in that: include: a housing, the housing comprising a receiving cavity for liquid circulation and a liquid inlet hole communicating with the receiving cavity; an end cover connected to one end of the shell; A transmission rod passes through the housing, and two ends of the transmission rod are respectively used to connect with the driving assembly and the clamping assembly of the tissue forceps; a sleeve, one end of which is connected to the housing, the transmission rod being located in the sleeve, a channel for liquid circulation being formed between the transmission rod and the sleeve, and the channel being in communication with the accommodating chamber; A push plate is located in the accommodating chamber and is slidably connected to the transmission rod. An elastic member is also provided between the push plate and the end of the shell. The two ends of the elastic member are respectively against the end of the push plate and the shell. A first space for accommodating the absorbent member is formed between the push plate and the end cover.

2. The irrigation mechanism of the tissue forceps according to claim 1, characterized in that: The shell is connected with a joint, the joint is communicated with the liquid inlet hole, and the liquid inlet hole is located between the end of the push plate moving path and the end of the shell.

3. The irrigation mechanism of the tissue forceps according to claim 2, characterized in that: A sealing block is provided on the side wall of the joint, and the sealing block extends in a threaded shape along the side wall of the joint.

4. The irrigation mechanism of the tissue forceps according to claim 1, characterized in that: The housing is further provided with an opening, which corresponds to the first spatial position and is used for the liquid-absorbing member to pass through.

5. The irrigation mechanism of the tissue forceps according to claim 4, characterized in that: The push plate is further connected to a connecting plate, which passes through the opening and can abut against the edge of the opening.

6. The irrigation mechanism of the tissue forceps according to claim 4, characterized in that: It also includes a sealing plug, which is engaged with the opening.

7. The irrigation mechanism of the tissue forceps according to claim 4, characterized in that: The opening and the liquid inlet hole are located on opposite sides of the shell, and the transmission rod passes through the end of the shell and the end cover.

8. A tissue forceps, characterized in that: An irrigation mechanism comprising the tissue forceps according to any one of claims 1 to 7, further comprising a drive assembly and a clamping assembly.

9. The tissue forceps according to claim 8, characterized in that: The driving assembly is connected to the end cover of the irrigation mechanism of the tissue forceps, and the output end of the driving assembly is connected to the end of the transmission rod.

10. The tissue forceps according to claim 8, characterized in that: The clamping assembly is connected to one end of the transmission rod of the irrigation mechanism of the tissue forceps away from the end cover. The clamping assembly includes a clamping member, and the clamping member includes a clamping groove. The edge of the clamping groove is provided with a liquid flow groove.

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