CN112704534B - Clip applier clamping bin assembly and medical operation clip applier - Google Patents

Abstract

The invention relates to a clip applier cartridge assembly and a medical operation clip applier, wherein the clip applier cartridge assembly comprises a selection cartridge and at least two clip cartridges with different sizes, the two clip cartridges are arranged in the selection cartridge, a first fixing cavity and a second fixing cavity are formed in the selection cartridge, the first fixing cavity is used for accommodating the different clip cartridges, the second fixing cavity is used for accommodating a central shaft of a clip applier shaft assembly, the central shaft of the second fixing cavity is overlapped with the central shaft of the clip applier shaft assembly, and the first fixing cavity is communicated with the second fixing cavity so that the clip cartridges can move between the first fixing cavity and the second fixing cavity. During operation, a user may desire and/or need to perform a procedure with clip magazines of different sizes, and with the device of the present invention, frequent replacement of the magazine during the procedure may be avoided, simplifying the procedure and reducing the risk of the procedure, while reducing the overall cost of the medical surgical clip applier.

Description

Clip applier clamping bin assembly and medical operation clip applier

Technical Field

The invention relates to a clip applier bin assembly and a medical operation clip applier, and belongs to the field of medical equipment.

Background

Endoscopic surgical staplers and surgical clip appliers are known in the art and are used in many different and useful surgical procedures. In the case of laparoscopic surgery, access to the interior of the abdomen is achieved through a narrow tube or cannula inserted through a small entry incision in the skin. Minimally invasive procedures performed elsewhere in the body are often referred to as endoscopic procedures. The tube or cannula device is typically extended into the patient through an access incision to provide an access port. The port allows a surgeon to use a trocar to insert a number of different surgical instruments therethrough and to perform surgical procedures away from the incision.

However, the existing clip applier can only load one specification of clip bins, namely a large/medium/small clip bin, so that the clip bins are frequently required to be frequently replaced in the operation process, the operation is complex, the operation time is prolonged, and the operation risk is increased to a certain extent.

Based on the foregoing, there is a need for a medical surgical clip applier that can select different types of clip magazines.

Disclosure of Invention

The invention aims to provide a clip applier bin assembly and a medical operation clip applier.

In order to achieve the purpose, the invention provides the following technical scheme: a clip applying device bin clamping assembly comprises a selection bin and at least two clip bins with different sizes, wherein the clip bins are arranged in the selection bin, first fixing cavities used for containing the different clip bins and a second fixing cavity with a central shaft coinciding with the central shaft of a clip applying device shaft assembly are formed in the selection bin, and the first fixing cavities are communicated with the second fixing cavities so that the clip bins can move between the first fixing cavities and the second fixing cavities.

Furthermore, the selection bin comprises a selection block and an outer cover covering the selection block, and a second through hole communicated with the second fixing cavity is formed in the selection block; when the clamping bin is positioned in the second fixing cavity, the clamping bin is fixed in the second through hole, and at least part of the clamping bin is exposed out of the selecting bin from the second through hole.

Furthermore, a connecting hole communicated with the second fixing cavity is formed in the outer cover, and the clip applier shaft assembly is in butt joint with the clip bin located in the second fixing cavity through the connecting hole.

Furthermore, a plurality of first through holes communicated with the first fixing cavity are formed in the selecting block, each clamping bin is fixed in the corresponding first through hole initially, so that each clamping bin is located in the first fixing cavity, and the size of each first through hole is matched with that of the clamping bin in the first through hole.

Furthermore, the selecting block is also provided with a plurality of first through holes communicated with the first fixing cavity, and the clamping bin is provided with a fixing piece which is used for abutting against the first through holes; initially, each cartridge is fixed in the first through hole through the fixing member, so that each cartridge is located in the first fixing cavity.

Further, the fixing piece is a backing ring, and the backing ring is sleeved on the clamping bin.

Further, the clip chamber has opposite head end and tail end, the head end of the clip chamber is arranged in the selection chamber, and the clip chamber in the second fixing chamber extends out in the tail end direction relative to the clip chamber in the first fixing chamber.

Further, the central axis of the first fixed cavity is parallel to the central axis of the second fixed cavity, and the first fixed cavity surrounds the second fixed cavity, different from the first fixed cavity having different central axes.

Furthermore, a slide way for communicating the first through hole with the second through hole is arranged between the first through hole and the second through hole, and the bin clamp moves between the first through hole and the second through hole through the slide way.

Furthermore, the clamping bin is provided with a stop piece at the tail end, the size of the stop piece is larger than that of the second through hole, and when the clamping bin is located in the second through hole, the stop piece abuts against the second through hole so as to prevent the clamping bin from sliding out of the second through hole.

Further, the size of each slide way is larger than the diameter of the corresponding clamping bin and smaller than the size of the fixing piece and the size of the stop piece, and the clamping bin is pushed out from the first through hole and is arranged in the second through hole through the slide way.

Furthermore, a guide groove is formed in the outer cover, a guide block matched with the guide groove is arranged on the stop piece, and the guide block is moved to enable the clamping bin to move between the first fixing cavity and the second fixing cavity correspondingly.

The invention also provides a medical operation clip applier which comprises a handle component, a working head selectively connected with the handle component, a shaft component connected with the working head, and a clip applier cartridge component, wherein the clip applier cartridge component is selectively connected with the shaft component.

Compared with the prior art, the invention has the beneficial effects that: the clip applier cartridge assembly and the medical surgical clip applier of the invention are provided with selection cartridges which can load cartridges of different sizes. During operation, a user may desire and/or need to perform a procedure with clip magazines of different sizes, and with the device of the present invention, frequent replacement of the magazine during the procedure may be avoided, simplifying the procedure and reducing the risk of the procedure, while reducing the overall cost of the medical surgical clip applier.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a clip applier cartridge assembly according to an embodiment of the present invention;

fig. 2-4 are schematic structural views of a clip applier cartridge assembly in an initial state according to an embodiment of the present invention;

FIGS. 5-7 are schematic views of a clip applier clip cartridge assembly in a selected clip cartridge state, according to an embodiment of the present invention;

FIG. 8 is a schematic view of a portion of a medical surgical clip applier, according to another embodiment of the invention.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

It should be noted that: the terms "upper", "lower", "left", "right", "inner" and "outer" of the present invention are used for describing the present invention with reference to the drawings, and are not intended to be limiting terms.

Referring to fig. 1-7, clipapplier cartridge assembly 10, according to a preferred embodiment of the present invention, comprises amagazine 1 and at least two differently sizedcartridges 2 disposed within saidmagazine 1. depending on the intended use,cartridge 2 may have a variety of outer diameters into which differently sizedjaws 20 may be loaded. In this embodiment, the different sizes of the clip bins include a large size clip bin, a medium size clip bin and a small size clip bin; indeed, in other embodiments, only one or two of the clamping bins may be provided, which may be selected according to actual conditions.

Theselection cabin 1 is provided with afirst fixing cavity 101 for accommodatingdifferent clip cabins 2 respectively, and a second fixing cavity (not shown) with a central shaft coincident with that of the clip applier shaft assembly, thefirst fixing cavity 101 is communicated with the second fixing cavity, and theclip cabin 2 can move between thefirst fixing cavity 101 and the second fixing cavity. In the initial state, thecartridge 2 is fixed in thefirst fixing cavity 101, and after a user selects a specific type ofcartridge 2 as required, the user pushes thecartridge 2, so that thecartridge 2 can be moved into the second fixing cavity. It will be appreciated by those skilled in the art that thecartridge 2 has opposite head and tip ends (the direction of arrow a in fig. 3 is the head end, the opposite direction is the tip end, the head end refers to the end closer to the patient and the tip end refers to the end closer to the user), and that thejaws 20 are typically fired at the head end. The head end of the clamping bin is arranged in the selecting bin, and the clamping bin positioned in the second fixing cavity extends out in the tail end direction relative to the clamping bin positioned in the first fixing cavity so as to operate the clamping bin positioned in the second fixing cavity. Meanwhile, the central axis of the firstfixed cavity 101 is parallel to the central axis of the second fixed cavity, and preferably, a plurality of firstfixed cavities 101 are circumferentially arranged around the second fixed cavity. And a circumferential arrangement mode is adopted, so that wrong bin clamping can be avoided being selected by misoperation.

As shown in fig. 1, theselection bin 1 includes aselection block 11 and anouter cover 12 covering theselection block 11, wherein theselection block 11 is provided with a plurality of first throughholes 110 corresponding to thecartridge 2 with different sizes, in this embodiment, three first throughholes 110. Initially, thecartridge 2 with different sizes is respectively fixed in the first throughholes 110 with different sizes, so that eachcartridge 2 is located in the first fixing cavity. The three first throughholes 110 can be designed according to the outer diameters ofdifferent cartridge chambers 2, but in order to simplify the device structure and reduce the manufacturing cost, the first throughholes 110 of the present embodiment have the same size, the diameter of the first throughholes 110 is slightly larger than the outer diameter of alarge cartridge chamber 2, afixing member 21 is arranged on eachcartridge chamber 2, and when thecartridge chamber 2 is located in thefirst fixing cavity 101, thefixing member 21 abuts against the first throughholes 110. Preferably, thefixing member 21 is a backing ring, and the backing ring is sleeved on thecartridge 2. The design mode facilitates the manufacture of theselection block 11, reduces the production cost and is suitable for large-scale industrial production.

In this embodiment, theouter cover 12 is provided with aguide groove 121, and thestopper 22 is provided with aguide block 221 matching with theguide groove 121. In the initial state, theguide block 221 is disposed to protrude from theguide groove 121, so that the user can push theselected cartridge 2 from thefirst fixing chamber 101 to the second fixing chamber by pressing theguide block 221. Meanwhile, theouter cover 12 is further provided with a connectinghole 122 for connecting the shaft assembly of the clip applier, and the connectinghole 122 is preferably circular and has a center located on the central axis of the shaft assembly. In the use process, the shaft assembly is connected with thecartridge 2 positioned in the second fixed cavity through the connectinghole 122, so that the firing is realized.

As shown in fig. 3, theselection block 11 is further provided with a second throughhole 111, and a central axis of the second throughhole 111 coincides with a central axis of the clip applier shaft assembly. In this embodiment, three first throughholes 110 are uniformly distributed circumferentially around the central axis of the second throughhole 111; indeed, in other embodiments, the arrangement of the first throughhole 110 and the second throughhole 111 may be selected according to actual situations, and the embodiment using the above arrangement can avoid interference between the twoclamping chambers 2, so as to facilitate the operation. In this embodiment, the second throughhole 110 is disposed close to the head end relative to the first throughhole 111, so that when theselected cartridge 2 is in the second fixing cavity, the structure of the head end portion extends relative to theother cartridge 2, thereby allowing an operator to use the cartridge.

Since thecartridge 2 needs to be moved from the first throughhole 110 to the second throughhole 111, a slide (not numbered) is disposed between each first throughhole 110 and the second throughhole 111, and the size of each slide needs to be at least larger than the diameter of thecorresponding cartridge 2 and smaller than the size of thefixing member 21. Theclamping bin 2 is pushed out from the first through hole, penetrates through the slide way and is arranged in the second through hole. And the diameter of the second throughhole 111 is larger than the outer diameter of eachcartridge 2, preferably, larger than the size of thefixing member 21. In order to avoid theselected cartridge 2 from sliding out of the second throughhole 111, astop 22 having a size larger than the chute and the second throughhole 111 is provided at or near the end of each of saidcartridges 2. When thecartridge 2 is located in the second throughhole 111, thestopper 22 abuts against the second throughhole 111 to prevent thecartridge 2 from falling off from the second throughhole 111.

Referring to fig. 8, an embodiment of the present invention further provides a medical clip applier, which includes ahandle assembly 100, a workinghead 200 selectively connected to thehandle assembly 100, ashaft assembly 300 connected to the workinghead 200, and the clip applier cartridge assembly 10 (see fig. 1 to 7 for an embodiment). It will be appreciated by those skilled in the art that clip applier may be operated by providing an actuator assembly other than handleassembly 100, and thathandle assembly 100 or actuator assembly are well known in the art and will not be described in detail herein. Theshaft assembly 300 of the present embodiment may be disposable or reusable, and may include conventional firing, sleeve, and drive components, which will not be described in detail herein. In the medical surgical clip applier of this embodiment, the head end of theshaft assembly 300 is selectively connected to the clipapplier cartridge assembly 10 of the present invention, and the central axes of the second throughhole 111 and the connectinghole 122 in the clipapplier cartridge assembly 10 are both coincident with the central axis of theshaft assembly 300, so as to ensure the accuracy of firing the clip applier.

In summary, the following steps: the clip applier cartridge assembly and the medical surgical clip applier of the invention are provided with selection cartridges which can load cartridges of different sizes. During operation, a user may desire and/or need to perform a procedure with clip magazines of different sizes, and with the device of the present invention, frequent replacement of the magazine during the procedure may be avoided, simplifying the procedure and reducing the risk of the procedure, while reducing the overall cost of the medical surgical clip applier.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. The clip applier bin assembly is characterized by comprising a selection bin and at least two different-size clip bins arranged in the selection bin, wherein first fixing cavities used for containing the different clip bins and a second fixing cavity with a central shaft coinciding with a central shaft of a clip applier shaft assembly are formed in the selection bin, and the first fixing cavities are communicated with the second fixing cavities so that the clip bins can move between the first fixing cavities and the second fixing cavities; the selection bin comprises a selection block and an outer cover covering the selection block, and a second through hole communicated with the second fixing cavity is formed in the selection block; when the cartridge is positioned in the second fixing cavity, the cartridge is fixed in the second through hole, and at least part of the cartridge is exposed out of the selection bin from the second through hole; the selection block is further provided with a plurality of first through holes communicated with the first fixing cavity, and initially, each clamping bin is fixed in the corresponding first through hole so that each clamping bin is located in the first fixing cavity, and the size of each first through hole is matched with that of the clamping bin in the first through hole.

2. The clip applier cartridge assembly of claim 1, wherein said outer cover is provided with a connecting hole communicating with said second holding chamber, and said clip applier shaft assembly is butted against said cartridge located in said second holding chamber through said connecting hole.

3. The clip applier cartridge assembly of claim 1, wherein said select block is further provided with a plurality of first through holes communicating with said first fixing cavity, said cartridge is provided with a fixing member for abutting against said first through holes; initially, each cartridge is fixed in the first through hole through the fixing member, so that each cartridge is located in the first fixing cavity.

4. The clip applier cartridge assembly of claim 3, wherein said securing member is a grommet that fits over said cartridge.

5. The clip applier cartridge assembly of claim 3, wherein said cartridge has opposite head and tail ends, said head end of said cartridge being disposed within said select cartridge, said cartridge located within said second securing chamber projecting in a tail end direction relative to said cartridge located within said first securing chamber.

6. The clip applier cartridge assembly of claim 3, wherein a central axis of said first securement cavity is parallel to a central axis of said second securement cavity, and said first securement cavity is disposed about said second securement cavity, different ones of said first securement cavities having different central axes.

7. The clip applier cartridge assembly of claim 3, wherein a slide is disposed between said first through hole and said second through hole to place said first through hole in communication with said second through hole, said cartridge being movable between said first through hole and said second through hole by said slide.

8. The clip applier cartridge assembly of claim 7, wherein said cartridge is provided with a stop at a distal end that is larger in size than said second through hole, said stop abutting said second through hole when said cartridge is positioned in said second through hole to prevent said cartridge from sliding out of said second through hole.

9. The clip applier cartridge assembly of claim 8, wherein each said slide is sized to be larger than a diameter of a corresponding said cartridge and smaller than a size of said fastener and said stop, said cartridge being pushed out of said first through hole, through said slide and into said second through hole.

10. The clip applier cartridge assembly of claim 9, wherein said outer cover defines a guide slot, and said stop member defines a guide block that mates with said guide slot, whereby movement of said guide block moves said cartridge between said first and second fixed cavities.

11. A medical surgical clip applier comprising a handle assembly, a working head selectively connectable to said handle assembly, a shaft assembly connectable to said working head, and a clip applier cartridge assembly according to any one of claims 1 to 10 selectively connectable to said shaft assembly.

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