Wire-card-free electric burning knife connector
Through the electric burner connector designed without wire card, the cable is clamped with bent grooves and crimping ribs, the problem of increasing cost and controlling the wire card is solved, and cost reduction and production efficiency improvement are achieved.
Patent Information
- Application Number
- CN202422161803.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-04
AI Technical Summary
In the existing electric knife connector, the setting of the wire card increases the material and production costs, and the tension confirmation requires special quality control, which affects production efficiency.
The electric burner connector designed with a wire-free card is used to clamp the cable by setting bent grooves and crimping ribs in the shell, and the crimping ribs in the upper and lower shells to ensure that the tension demand does not increase material and process complexity.
The material control procedures and working hours of the station are reduced, and the production costs are reduced. At the same time, the tension capacity is verified during the design stage, avoiding key control after mass production.
Smart Images
Figure CN223052483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a component of an electrosurgical instrument, in particular to a connector of an electrosurgical knife. Background Art
[0002] With the progress of medicine, surgeries have become increasingly simple. To avoid cross-infection during surgeries, there is a growing variety of disposable surgical supplies. In 2021, the global scalpel market size was 302.8 million US dollars, and it is expected to reach 458.43 million US dollars by 2031, with a compound annual growth rate of 4.2% during the forecast period.
[0003] As the most frequently used medical device for cutting / hemostasis during surgeries, namely the electrosurgical knife, it has also attracted much attention nowadays. However, since it is a disposable product after all, its supporting cable is also disposable. As a disposable product, the cost is continuously compressed while fully meeting the usage functions.
[0004] Speaking of cost, reducing cost while being able to cut down on materials and man-hours is the most ideal choice, which is still a huge challenge for disposable cables. Based on the current product design, we might as well improve from the mechanism to achieve the goal of reducing cost by reducing materials and man-hours.
[0005] There are two ways to apply connectors to cables such as electrosurgical knives: one is overmolding, and the other is upper and lower shell assembly. As shown in the schematic diagram of the prior art in Figure 8 In order to save costs, disposable electrosurgical knives generally use ultrasonic assembly of the upper shell 91 and the lower shell 92 and then use the ultrasonic welding process. However, in order to ensure the mechanical tensile performance of the product, a wire clip 94 (or wire buckle) is generally injection molded or riveted on the cable 93. Before assembling the upper shell 91 and the lower shell 92, the wire clip 94 is fixed inside the shell, and after assembling the upper shell 91 and the lower shell 92, ultrasonic welding is used. In this way, the wire clip 94 can be relied on to increase the tensile strength of the cable 93, avoiding the cable 93 shaking or even the core wire in the cable 93 breaking due to pulling during the surgery, resulting in surgical failure.
[0006] The wire clip 94 is generally made of metal or plastic, and the tensile strength needs to be confirmed after its combination with the cable 93 during the processing. As a special process, it may also be included in the key quality control procedures. At the same time, this structural design also adds new materials. The material control of medical devices is stricter than that of industrial or consumer electronic products in general. Every additional material or process will lead to certain risks.
[0007] In summary, for the products currently on the market, that is, in the prior art, wire clips 94 are used inside the upper shell 91 and the lower shell 92 to increase the resistance to pulling force. The setting of the wire clips 94 will lead to two situations: First, adding new materials, resulting in one more substance control and production cost; and second, the confirmation of the pulling force will be included in the scope of special control.
[0008] It can be seen from this that in view of the large additional costs caused by the setting of the wire clips 94, it is necessary to improve the connector of the electrocautery knife in the prior art. Summary of the Invention
[0009] The main object of the present invention is to provide an electrocautery knife connector that does not use a wire clip design but can still ensure the pulling force resistance of the cable.
[0010] To achieve the foregoing object, the present invention provides a wire clip-free electrocautery knife connector for setting a cable and at least one pin. The wire clip-free electrocautery knife connector has:
[0011] A housing that surrounds and forms a setting space. The opposite ends of the housing include a first end and a second end; the housing includes:
[0012] An outer upper shell and an outer lower shell. The peripheries of the outer upper shell and the outer lower shell are joined to each other, whereby the setting space is formed between the outer lower shell and the outer upper shell; the outer lower shell has:
[0013] A bending groove that is provided on the surface of the outer lower shell facing the outer upper shell and is located in the setting space;
[0014] Wherein, the cable is arranged in the bending groove and penetrates through the first end of the housing; and the at least one pin penetrates through the second end of the housing and is connected to the cable.
[0015] Therefore, the advantages of the present invention are that compared with the products on the market in terms of its structural design, the following characteristics can be achieved: First, without the wire clip design, one less substance control; second, the pulling force can be verified at the design stage, and key control of the pulling force is no longer required after mass production; and third, reducing the working hours, materials of workstations and costs.
[0016] Furthermore, for the wire clip-free electrocautery knife connector as described above, the outer lower shell further has a wire pressing rib that protrudes from the surface of the outer lower shell facing the outer upper shell. The wire pressing rib is located in the bending groove and extends along the bending groove, and the wire pressing rib can contact the cable.
[0017] Furthermore, for the wire - clip - free electro - surgical knife connector as described above, the outer upper shell further has an upper wire - pressing rib, which protrudes on the side of the outer upper shell facing the outer lower shell. The upper wire - pressing rib is located within the bending groove and extends along the bending groove, and the upper wire - pressing rib can contact the cable.
[0018] Furthermore, for the wire - clip - free electro - surgical knife connector as described above, the outer lower shell further has two side walls, the two side walls are opposite to each other, and each side wall connects the first end and the second end; and the bending groove includes at least one bending section, and both ends of the at least one bending section face one of the side walls.
[0019] Furthermore, for the wire - clip - free electro - surgical knife connector as described above, the bending groove further includes at least one reverse - bending section, and both ends of the at least one reverse - bending section face the other side wall; wherein, the at least one bending section and the at least one reverse - bending section are arranged alternately along the direction from the first end to the second end.
[0020] Furthermore, for the wire - clip - free electro - surgical knife connector as described above, the bending groove further includes at least one straight section, and its opposite ends are respectively connected to the adjacent at least one bending section and the at least one reverse - bending section; wherein one of the groove wall surfaces of the at least one straight section faces the second end, and the cable can abut against the groove wall surface facing the second end.
[0021] Furthermore, for the wire - clip - free electro - surgical knife connector as described above, the bending groove further includes at least one straight section, and its opposite ends are respectively connected to the adjacent at least one bending section and the at least one reverse - bending section; wherein one of the groove wall surfaces of the at least one straight section faces the first end, and the cable can abut against the groove wall surface facing the first end. Description of the Drawings
[0022] Figure 1 is a three - dimensional external view schematic diagram of the present utility model.
[0023] Figure 2 is a three - dimensional exploded schematic diagram of the present utility model.
[0024] Figure 3 is a side - view cross - sectional schematic diagram of the present utility model.
[0025] Figure 4 is a three - dimensional external view schematic diagram of the outer lower shell of the present utility model.
[0026] Figure 5 is a top - view schematic diagram of the outer lower shell of the present utility model.
[0027] Figure 6It is a three-dimensional external view schematic diagram of the external upper shell of the present utility model.
[0028] Figure 7 It is a top view schematic diagram of the external upper shell of the present utility model.
[0029] Figure 8 It is a schematic diagram of an electrocautery knife connector of the prior art. Detailed implementation manners
[0030] The following, in conjunction with the drawings and the preferred embodiments of the present utility model, further elaborates on the technical means adopted by the present utility model to achieve the intended utility model purpose.
[0031] First, please refer to Figures 1 to 3 , the present utility model provides an electrocautery knife connector without wire clips, which has a housing 10, a cable 20, and at least one pin 30.
[0032] The housing 10 surrounds to form a setting space 101, and the opposite ends of the housing 10 include a first end 102 and a second end 103. In this embodiment, a wire hole 1021 is formed through the first end 102, and at least one pin hole 1031 is formed through the second end 103.
[0033] Specifically, the housing 10 in this embodiment includes an external lower shell 11 and an external upper shell 12. The peripheries of the external upper shell 12 and the external lower shell 11 are joined to each other, whereby the setting space 101 is formed between the external lower shell 11 and the external upper shell 12.
[0034] Please refer to Figures 3 to 5 , the external lower shell 11 has two side walls 111, a bending groove 112, and a lower wire pressing rib 113. The two side walls 111 face each other, and each side wall 111 connects the first end 102 and the second end 103. The bending groove 112 is disposed on the surface of the external lower shell 11 facing the external upper shell 12 and is located in the setting space 101. In this embodiment, one end of the bending groove 112 faces the first end 102 and is located at the position of the first end 102, whereby the bending groove 112 and the wire hole 1021 communicate with each other, but it is not limited thereto.
[0035] The bending groove 112 includes at least one bending section 1121, at least one anti-bending section 1122, and at least one straight section 1123, and the bending section 1121 and the anti-bending section 1122 are alternately arranged in a direction from the first end 102 to the second end 103, whereby the bending groove 112 extends meanderingly from the first end 102 to the second end 103, and there are multiple bending portions between the first end 102 and the second end 103, forming a groove in the shape of an S.
[0036] Specifically, in this embodiment, both ends of the bending section 1121 of the bending groove 112 face one of the side walls 111, while both ends of the anti-bending section 1122 face the other side wall 111; in other words, the bending directions of the bending section 1121 and the anti-bending section 1122 are opposite to each other, but this is not limiting.
[0037] The bending section 1121 and the anti-bending section 1122 are arranged alternately along the direction from the first end 102 to the second end 103; the bending groove 112 in this embodiment has two bending sections 1121 and one anti-bending section 1122, and the anti-bending section 1122 is located between the two bending sections 1121, but this is not limiting. For example, it may also have two anti-bending sections 1122 and one bending section 1121.
[0038] The opposite ends of the straight section 1123 are respectively connected to the adjacent bending section 1121 and the anti-bending section 1122. There are two straight sections 1123 in this embodiment. The straight section 1123 has two opposite groove wall surfaces, and one of the groove wall surfaces faces the second end 103, but this is not limiting.
[0039] The downward pressing wire rib 113 protrudes from the surface of the outer lower shell 11 facing the outer upper shell 12. The downward pressing wire rib 113 is located in the bending groove 112 and extends along the bending groove 112. The downward pressing wire rib 113 contacts the cable 20. In this embodiment, the downward pressing wire rib 113 is a convex rib with a bending shape. It is arranged on the groove bottom surface of the bending groove 112 and extends along the bending groove 112, but this is not limiting. For example, in other embodiments, the downward pressing wire rib 113 may also be multiple convex blocks that protrude from the groove bottom surface of the bending groove 112 and are arranged at intervals along the extending direction of the bending groove 112. The bending groove 112, the downward pressing wire rib 113, and the outer lower shell 11 are preferably integrally formed, but this is not limiting.
[0040] Please refer to Figure 3 、 Figure 6 and Figure 7 , the peripheries of the outer upper shell 12 and the outer lower shell 11 are joined to each other, and the surface of the outer upper shell 12 facing the outer lower shell 11 is recessed away from the outer lower shell 11. The outer upper shell 12 has an upper pressing wire rib 121, and the upper pressing wire rib 121 contacts the cable 20. The upper pressing wire rib 121 protrudes from the surface of the outer upper shell 12 facing the outer lower shell 11, and the upper pressing wire rib 121 is located in the bending groove 112 and extends along the bending groove 112.
[0041] Similarly, in this embodiment, the upper wire pressing rib 121 is a convex rib in a bent shape, and its set position corresponds to the position of the lower wire pressing rib 113. Thus, the upper wire pressing rib 121 and the lower wire pressing rib 113 can jointly clamp the cable 20 to ensure the tensile strength of the cable 20, but not limited thereto. For example, in other embodiments, the housing 10 may only have the upper wire pressing rib 121 or the lower wire pressing rib 113, or the upper wire pressing rib 121 may also be a plurality of bumps arranged at intervals along the extending direction of the bent groove 112. In addition, the upper wire pressing rib 121 and the outer upper housing 12 are preferably integrally formed, but not limited thereto.
[0042] Next, please refer to Figure 2 and Figure 3 . The cable 20 is disposed in the bent groove 112 and extends along the bent groove 112, and the cable 20 penetrates through the wire hole 1021 located at the first end 102 of the housing 10. In this embodiment, for the part of the cable 20 located in the straight section 1123 of the bent groove 112, the side facing the first end 102 abuts against the groove wall surface of the straight section 1123 of the bent groove 112 that faces the second end 103. Thus, the groove wall surface provides a resistance in the direction of the second end 103, thereby enhancing the tensile strength of the cable 20. Preferably, for the part of the cable 20 located in the straight section 1123 of the bent groove 112, the side facing the second end 103 abuts against the groove wall surface of the straight section 1123 of the bent groove 112 that faces the first end 102. Thus, the cable 20 is clamped by the two groove wall surfaces of the straight section 1123, so as to obtain better tensile strength, but not limited thereto. The cable 20 may only contact one of the groove wall surfaces of the straight section 1123, or may not contact any of the groove wall surfaces of the straight section 1123.
[0043] The pin 30 penetrates through the pin hole 1031 at the second end 103 of the housing 10 and is connected to the cable 20. Thus, the pin 30 and the cable 20 can conduct electricity with each other.
[0044] Please refer to Figures 2 to 5 . In the present utility model, the cable 20 is disposed in the bent groove 112 along the extending direction of the bent groove 112 and is clamped by the upper wire pressing rib 121 and the lower wire pressing rib 113 that extend along the extending direction of the bent groove 112. Therefore, the cable 20 bent in the bent groove 112 will be pressed by the upper wire pressing rib 121 and the lower wire pressing rib 113, preventing the cable 20 from shaking in the groove and affecting the mechanical performance, and also being able to resist external tensile forces.
[0045] In addition, the cable 20 extends meanderingly along with the bent groove 112 and is folded back at the bent section 1121 and the reverse bent section 1122 of the bent groove 112. The groove wall surfaces of the bent section 1121 and the reverse bent section 1122 contact the folded-back portion of the cable 20. Thus, the tensile strength of the cable 20 can be provided by increasing the friction force.
[0046] In the portion of the straight segment 1123, the groove wall surface facing the second end 103 of the housing 10 abuts against the side of the cable 20 facing the first end 102. Therefore, when the cable 20 is subjected to a pulling force in the direction of the first end 102, the groove wall surface of the straight segment 1123 facing the second end 103 of the housing 10 can provide a resisting force in the opposite direction of the cable 20 to assist the cable 20 in resisting the pulling force. Further, the two groove wall surfaces of the straight segment 1123 can also jointly clamp a portion of the cable 20, thereby obtaining better tensile resistance.
[0047] With the foregoing structure, the wire-free clip electrocautery knife connector of the present utility model does not need to be like the electrocautery knife connector in the prior art shown in Figure 8 wherein a wire clip needs to be provided on the cable for fixation when the upper and lower housings are assembled. The present utility model changes the structure on the existing materials, so as to meet the tensile requirements without adding materials and special processes. The tensile resistance of the structure of the present utility model can be verified at the design stage, and there is no need to focus on tensile control after mass production. Therefore, the present utility model can reduce the procedures of material control, can also avoid the key control of the tensile force of the cable 20 after product mass production, and can also reduce the assembly steps, thereby reducing the working hours of the work station and the manufacturing cost.
[0048] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the equivalent embodiments with equivalent changes by using the technical content disclosed above within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A wire-free electric burner connector, which is used to set a cable and at least one pin, characterized in that: The free wire card electric burner connector has: A housing surrounds and forms a setting space, wherein two opposite ends of the housing include a first end and a second end; the housing includes: An outer upper shell and an outer lower shell, the periphery of the outer upper shell and the periphery of the outer lower shell are joined to each other, whereby the setting space is formed between the outer lower shell and the outer upper shell; the outer lower shell has: A curved groove, which is arranged on a side of the outer lower shell facing the outer upper shell and is located in the arrangement space; The cable is arranged in the curved groove and penetrates the first end of the shell; and the at least one pin penetrates the second end of the shell and is connected to the cable.
2. The wire-free electric burner connector according to claim 1, characterized in that: The outer lower shell further comprises: A pressing rib is protrudingly formed on a side of the outer lower shell facing the outer upper shell, the pressing rib is located in the bending groove and extends along the bending groove, and the pressing rib can contact the cable.
3. The wire-free electric burner connector according to claim 1, characterized in that: The outer upper shell further has: An upper wire pressing rib is protrudingly formed on a side of the outer upper shell facing the outer lower shell, the upper wire pressing rib is located in the curved groove and extends along the curved groove, and the upper wire pressing rib can contact the cable.
4. The electric burner connector of the wire-free card according to any one of claims 1 to 3, characterized in that: The outer lower shell further comprises: two side walls, the two side walls are opposite to each other, and each of the side walls connects the first end and the second end; and The curved groove comprises: At least one curved segment, with two ends of the at least one curved segment facing one of the side walls.
5. The wire-free electric burner connector according to claim 4, characterized in that: The curved groove further comprises: at least one reverse curved section, with both ends of the at least one reverse curved section facing the other side wall; Wherein, the at least one curved segment and the at least one reverse curved segment are alternately arranged in a direction from the first end to the second end.
6. The wire-free electric burner connector according to claim 5, characterized in that: The curved groove further comprises: At least one straight line segment, whose opposite ends are respectively connected to the adjacent at least one curved segment and the at least one reverse curved segment; wherein One slot wall surface of the at least one straight segment faces the second end, and the cable can abut against the slot wall surface facing the second end.
7. The wire-free electric burner connector according to claim 5, characterized in that: The curved groove further comprises: At least one straight line segment, whose opposite ends are respectively connected to the adjacent at least one curved segment and the at least one reverse curved segment; wherein One of the slot walls of the at least one straight segment faces the first end, and the cable can abut against the slot wall facing the first end.