A tearable sheath processing device

Abstract

The application provides a tearable sheath processing device, comprising: a positioning member, a positioning channel is formed in the positioning member; the positioning channel is used for positioning an end of the tearable sheath; a cutter is arranged in the positioning member; the cutter is used for radially cutting the end of the tearable sheath; and a punching mechanism is used for punching the end of the tearable sheath positioned on the positioning member. The tearable sheath processing device provided by the application positions the end of the tearable sheath through the positioning member, and can complete the cutting and punching processes, thereby improving the cutting and punching efficiency of the tearable sheath. Meanwhile, the tearable sheath does not need to be transferred and positioned multiple times, thereby improving the cutting and punching accuracy of the tearable sheath, improving the yield of the tearable sheath, and reducing the accidents of damaging blood vessels when the tearable sheath is used.

Description

Technical Field

[0001] This application belongs to the field of minimally invasive medical technology, and more specifically, relates to a tearable sheath processing device. Background Technology

[0002] Tearable sheaths are primarily used to guide various pacemaker leads and catheters, widen percutaneous incisions, and assist catheters in entering arteries and veins. In clinical use, the tearable sheath is passed through a guidewire to widen the incision site and advance the catheter into the blood vessel. Compared to traditional insertion sheaths, tearable sheaths are safer and more reliable; they can be torn open and withdrawn directly from the body, facilitating procedures and effectively reducing damage to blood vessels.

[0003] When in use, the tearable sheath needs to be inserted into a blood vessel, and the movement during insertion may be significant, easily causing the sheath and connector to separate and detach. To improve the reliability of the connection between the tearable sheath and the connector, the connector is usually injection molded onto the tearable sheath. Alternatively, holes can be drilled in the tearable sheath to ensure a more secure injection molding of the connector.

[0004] Currently, the end of the tearable sheath is usually cut manually with a scalpel before being perforated. This method is inefficient, has low processing precision, low yield, and is prone to causing damage to blood vessels. Summary of the Invention

[0005] The purpose of this application is to provide a tearable sheath processing device to solve the technical problems of low processing efficiency and low yield caused by manual cutting and punching of tearable sheaths in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide a tearable sheath processing apparatus, comprising:

[0007] A positioning element having a positioning channel formed therein; the positioning channel is used to position the end of the tearable sheath.

[0008] A cutter is disposed in the positioning member; the cutter is used to radially cut the end of the tearable sheath;

[0009] A punching mechanism for punching holes in the end of the tearable sheath positioned on the positioning member.

[0010] In one possible design, the cutter is fixedly positioned; the cutter cuts the end of the tearable sheath during the insertion of the tearable sheath into the positioning channel.

[0011] In one possible design, the positioning element also has a cutting groove; the cutting groove is perpendicularly intersecting and communicating with the positioning channel; the cutter is housed in the cutting groove.

[0012] In one possible design, one end of the positioning channel is formed with a limiting surface for limiting the insertion depth of the tearable sheath.

[0013] In one possible design, the cutter has a cutting edge line; the distance between the cutting edge line and the limiting surface is set to be the same as the cutting depth of the tearable sheath.

[0014] In one possible design, a positioning core is provided at the center of the positioning channel; one end of the positioning core extends beyond the positioning member; the positioning core is used for a tearable sheath to be fitted onto it to guide the tearable sheath into the positioning channel.

[0015] In one possible design, the positioning element has a through hole that perpendicularly intersects and communicates with the positioning channel; the through hole is used for the punching mechanism to partially extend into to punch the tearable sheath.

[0016] In one possible design, the drilling mechanism includes a drill bit, a rotary drive, and a lifting drive; the rotary drive is mounted on the output end of the lifting drive; and the drill bit is mounted on the output end of the rotary drive.

[0017] In one possible design, the tearable sheath processing device further includes a button; the button is electrically connected to the lifting drive.

[0018] In one possible design, the tearable sheath processing device further includes a limiting element; the limiting element is used to limit the descent stroke of the lifting drive.

[0019] The beneficial effects of the tearable sheath processing apparatus provided in this application are as follows: The tearable sheath processing apparatus provided in this application provides a positioning channel in the positioning member. The end of the tearable sheath can be guided into the positioning channel through the positioning channel, and the tearable sheath is positioned through the positioning channel, thereby ensuring the positioning accuracy of the tearable sheath in the positioning member. A cutter is placed on the positioning member, and the end of the tearable sheath is cut using the cutter. A punching mechanism punches holes in the end of the tearable sheath positioned on the positioning member, so that the positioning member can also serve as a positioning point for punching holes in the tearable sheath. This allows the punching mechanism to directly punch holes in the cut tearable sheath, thus enabling the cutting and punching processes of the tearable sheath to be performed continuously, improving the efficiency of cutting and punching the tearable sheath. Furthermore, since the tearable sheath only needs to be positioned once, there is no need to transfer or reposition the tearable sheath multiple times during the cutting and punching process, thereby improving the cutting and punching accuracy of the tearable sheath, increasing the yield of the tearable sheath, and reducing the risk of vascular damage during the use of the tearable sheath. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A perspective view of the tearable sheath processing apparatus provided in the embodiments of this application;

[0022] Figure 2 This is a longitudinal sectional view of the tearable sheath processing apparatus provided in an embodiment of this application;

[0023] Figure 3 for Figure 2 A longitudinal sectional view of the positioning components, cutter, and positioning core of the tearable sheath processing device;

[0024] Figure 4 for Figure 2 A cross-sectional view of the positioning components, cutter, and positioning core of the tearable sheath processing device;

[0025] Figure 5 for Figure 3 A magnified view of part A in the diagram.

[0026] The following are the labeling elements in the figure:

[0027] 100. Positioning component; 110. Positioning channel; 111. Limiting surface; 120. Connecting groove; 130. Positioning groove; 140. Step; 150. Tool groove; 151. Positioning surface; 160. Through hole; 200. Cutting tool; 210. Cutting edge line; 300. Positioning core; 310. Support section; 311. Guide surface; 320. Positioning section; 400. Drilling mechanism; 410. Lifting drive component; 420. Rotation drive component; 430. Drill bit; 440. Limiting component; 500. Mounting platform; 600. Horizontal support block; 700. Vertical support block; 800. Column; 900. Outer cover. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Please see Figures 1 to 4 The tearable sheath processing apparatus provided in this application embodiment will now be described. This tearable sheath processing apparatus is used to cut and punch holes at the end of a tearable sheath.

[0033] The tearable sheath processing apparatus includes a positioning element 100, a cutter 200, and a punching mechanism 400. A positioning channel 110 is formed in the positioning element 100; the positioning channel 110 is used to position the tearable sheath; the cutter 200 is disposed in the positioning element 100; the cutter 200 is used to radially cut the end of the tearable sheath; the punching mechanism 400 is used to punch holes in the end of the tearable sheath positioned on the positioning element 100.

[0034] It should be noted that the tearable sheath is cylindrical. Cutting the end of the tearable sheath radially means that the cut passes through the center of the tearable sheath and extends along the axial direction of the tearable sheath to cut it in half.

[0035] In this embodiment, the tearable sheath processing apparatus includes a positioning channel 110 in the positioning member 100. The end of the tearable sheath is guided into the positioning channel 110 and positioned accordingly, ensuring the positioning accuracy of the tearable sheath within the positioning member 100. A cutter 200 is placed on the positioning member 100, and the end of the tearable sheath is cut using the cutter. A punching mechanism 400 punches holes in the end of the tearable sheath positioned on the positioning member 100, allowing the positioning member 100 to also serve as a positioning point for punching the tearable sheath. This enables the punching mechanism 400 to directly punch holes in the cut tearable sheath, allowing the cutting and punching processes to be performed continuously, thus improving the efficiency of the cutting and punching of the tearable sheath. Furthermore, since the tearable sheath only needs to be positioned once, there is no need to transfer and reposition the tearable sheath multiple times during the cutting and punching process. This improves the cutting and punching accuracy of the tearable sheath, increases the yield of the tearable sheath, and reduces the risk of vascular damage during the use of the tearable sheath.

[0036] In one embodiment, see Figure 3 and Figure 4The cutter 200 is fixedly positioned; the cutter 200 cuts the end of the tearable sheath during the insertion of the tearable sheath into the positioning channel 110. In other words, the position of the cutter 200 remains unchanged throughout the entire process of cutting the tearable sheath; only the tearable sheath needs to be moved, making operation simple. During the insertion of the tearable sheath into the positioning channel 110, the cutter 200 begins to cut the tearable sheath when it begins to contact the cutter 200. When the tearable sheath is fully inserted, the cutter 200 completes the cutting. That is, the cutting of the tearable sheath by the cutter 200 can be completed during the insertion of the tearable sheath into the positioning channel 110, thereby improving the cutting efficiency of the tearable sheath. At the same time, it can reduce the design of a drive structure that drives the cutter 200, and also reduce the impact on cutting accuracy caused by the movement of both the cutter 200 and the tearable sheath. It is understood that in other embodiments of this application, a drive structure for the cutter 200 may also be provided on the positioning member 100. After the tearable sheath is inserted into place, the cutter 200 is driven by the drive structure to cut the tearable sheath. This is not the only one.

[0037] In one embodiment, see Figures 3 to 5 The cutter 200 is located in the extension path of the positioning channel 110. The cutter 200 is perpendicularly intersecting the positioning channel 110, so that the tearable sheath will pass through the cutter 200 during the insertion of the tearable sheath into the positioning channel 110, thereby allowing the tearable sheath inserted into the positioning channel 110 to be cut radially by the cutter 200.

[0038] In one embodiment, see Figures 3 to 5 The length extension direction of the cutter 200 is perpendicular to the length extension direction of the positioning channel 110; the cutter 200 has a cutting edge line 210, which faces the entrance of the positioning channel 110.

[0039] It should be noted that the cutter 200 is sheet-shaped, and the thickness direction of the cutter 200 is clearly defined as the direction of its minimum dimension. The cutter 200 also has mutually perpendicular length and width extension directions. The cutting edge line 210 of the cutter 200 is located on one side of the width extension direction of the cutter 200. Therefore, the length extension direction of the cutter 200 is the direction in which the cutter 200 does not have the cutting edge line 210.

[0040] In this embodiment, the length extension direction of the cutter 200 is perpendicular to the length extension direction of the positioning channel 110, and the cutting edge 210 of the cutter 200 is set towards the entrance of the positioning channel 110, that is, the cutting edge 210 of the cutter 200 is set towards the tearable sheath inserted into the positioning channel 110. When the tearable sheath is inserted to the position of the cutting edge 210, the cutting edge 210 of the cutter 200 will start to cut the tearable sheath. When the tearable sheath continues to be inserted forward, the cutting edge 210 continues to cut the tearable sheath until the cutting of the tearable sheath is completed.

[0041] In one embodiment, see Figures 3 to 5 The cutter 200 is placed horizontally in the positioning member 100, that is, the length extension direction and the width extension direction of the cutter 200 are both horizontal. The width extension direction of the cutter 200 is the same as the length extension direction of the positioning channel 110. This arrangement ensures that when the tearable sheath is inserted into the positioning channel 110 along the length extension direction of the positioning channel 110, the insertion direction of the tearable sheath is parallel to the cutting force of the cutter 200. This makes the force between the cutter 200 and the tearable sheath parallel to the insertion direction of the tearable sheath, thereby maximizing the cutting force and ensuring the cutting accuracy of the tearable sheath.

[0042] In one embodiment, see Figure 4 Along the radial direction of the positioning channel 110, the cutter 200 extends beyond the positioning channel 110 at both opposite ends along its length extension direction. Figure 4 It can be seen that only when both ends of the cutter 200 extend beyond the positioning channel 110 along the length extension direction can the cutter 200 completely cut the tearable sheath.

[0043] In one embodiment, see Figure 5 The blade line 210 of the cutter 200 is perpendicularly intersected with the center line of the positioning channel 110. This allows the blade line 210 of the cutter 200 to be perpendicularly intersected with the center line of the tearable sheath during cutting, thereby enabling the blade to accurately cut the tearable sheath radially.

[0044] In one embodiment, see Figure 5 One end of the positioning channel 110 has a limiting surface 111 for limiting the insertion depth of the tearable sheath. The limiting surface 111 can limit the insertion depth of the tearable sheath, and the position of the cutter 200 can be designed according to the required cutting depth of the tearable sheath to ensure that when the tearable sheath is inserted to the limiting surface 111, the cutting depth of the cutter 200 on the tearable sheath is exactly the required cutting depth.

[0045] In one embodiment, see Figure 5 The distance between the cutting edge 210 of the cutter 200 and the limiting surface 111 is set to be the same as the cutting depth of the tearable sheath. When the tearable sheath is inserted into the positioning channel 110 and begins to contact the cutting edge 210, the cutting edge 210 begins to cut the tearable sheath. When the tearable sheath moves to the limiting surface 111, the cutting edge 210 stops cutting the tearable sheath. Thus, by setting the distance between the cutting edge 210 and the limiting surface 111, the tearable sheath only needs to be moved to the limiting surface 111 to be completely cut. There is no need to design a detection device to detect whether the tearable sheath has been cut, and there is no need for feedback from the detection device before drilling begins, thereby improving the cutting and drilling efficiency of the tearable sheath. At the same time, it simplifies the overall structure of the tearable sheath processing device, making it simple in structure and low in cost. Understandably, in other embodiments of this application, the tearable sheath can be cut after it has been inserted into place. In this case, the cutter 200 needs to be slidably mounted on the positioning member 100, and the tearable sheath can be cut by sliding the cutter 200. Alternatively, the limiting surface 111 can be omitted, and the depth of the tearable sheath cut can be detected by a detection device to stop the insertion of the tearable sheath.

[0046] In one embodiment, see Figures 3 to 5 The positioning channel 110 is a cylindrical channel. The tearable sheath is tubular. When the positioning channel 110 is designed as a cylindrical channel, the inner circumference of the cylindrical channel can radially position the outer circumference of the tearable sheath, ensuring the accuracy of the tearable sheath during insertion into the positioning channel 110. This, in turn, ensures the positioning accuracy of the tearable sheath when the cutter cuts it, guaranteeing the cutting accuracy. It is understood that in other embodiments of this application, the positioning channel 110 may also be a semi-cylindrical channel, or it may be a partially cylindrical channel with a central angle greater than 180 degrees; this is not a unique limitation.

[0047] In one embodiment, see Figure 5 The positioning member 100 also has a cutting groove 150; the cutting groove 150 is perpendicularly and intersectingly connected to the positioning channel 110; the cutter 200 is housed in the cutting groove 150. In this embodiment, the cutter 200 is positioned by the cutting groove 150, the cutter 200 is housed in the cutting groove 150, and the cutter 200 is perpendicularly and intersectingly connected to the tearable sheath inserted into the positioning channel 110, thereby enabling the tearable sheath to be cut radially.

[0048] In one embodiment, see Figure 5 The cutter 200 is interference-fitted with the blade groove 150, so that the cutter 200 can be firmly installed in the blade groove 150.

[0049] In one embodiment, see Figure 5 The cutter groove 150 has two positioning surfaces 151 arranged vertically opposite each other. During installation, the cutter 200 is housed in the cutter groove 150, and the upper and lower sides of the cutter 200 abut against the two positioning surfaces 151 respectively, thereby positioning the cutter 200 through the two positioning surfaces 151. At the same time, by ensuring that the center plane of the upper and lower positioning surfaces 151 coincides with the center plane of the positioning channel 110, the positioning accuracy of the cutter 200 is guaranteed.

[0050] In one embodiment, see Figures 3 to 5 The positioning channel 110 has a positioning core 300 at its center; one end of the positioning core 300 extends beyond the positioning member 100; the positioning core 300 is used to allow the tearable sheath to be fitted onto it to guide the tearable sheath into the positioning channel 110. At the start of operation, the end of the tearable sheath can be fitted onto the positioning core 300, protruding from the positioning member 100, and then the tearable sheath can be pushed along the positioning core 300 into the positioning channel 110 until the cutter completes the tearable sheath cut.

[0051] In this embodiment, since the material of the tearable sheath is relatively soft and the material of the positioning member 100 is relatively hard, the positioning core 300 extending from the positioning member 100 supports the tearable sheath, thereby ensuring that the tearable sheath is inserted into the positioning channel 110 in a flush state, avoiding bending and deformation of the part of the tearable sheath extending into the positioning channel 110, thereby improving the insertion accuracy of the tearable sheath into the positioning channel 110, thus ensuring the cutting and drilling accuracy of the tearable sheath, and improving the yield of the tearable sheath.

[0052] In one embodiment, see Figure 3 and Figure 4 The end of the positioning core 300 extending out of the positioning member 100 is radially retracted to form a tapered guide surface 311. The guide surface 311 guides the tearable sheath to be fitted onto the positioning core 300, thereby increasing the speed at which the tearable sheath is fitted onto the positioning core 300 and improving the cutting and punching efficiency of the tearable sheath.

[0053] In one embodiment, see Figure 3 and Figure 4 The positioning core 300 is set through the positioning component 100 and is fixed to the positioning component 100 by fasteners to ensure the reliable installation of the positioning core 300 on the positioning component 100, thereby avoiding the positioning core 300 from shaking when the tearable sheath is inserted into the positioning channel 110, which would affect the cutting and drilling accuracy of the tearable sheath.

[0054] In one embodiment, see Figure 3 and Figure 4The positioning core 300 includes a positioning section 320 and a support section 310. The support section 310 is long and rod-shaped, with a guide surface 311 formed at one end. The positioning section 320 is integrally connected to the other end of the support section 310, and the length and width of the positioning section 320 are both larger than the outer diameter of the support section 310. The positioning element 100 also has a positioning groove 130 and a connecting groove 120. The positioning channel 110, the connecting groove 120, and the positioning groove 130 are sequentially connected along the axial direction of the positioning channel 110. The inner diameter of the connecting groove 120 is smaller than the inner diameter of the positioning channel 110, and the inner diameter of the connecting groove 120 is adapted to the outer diameter of the support section 310. The inner sidewall of the positioning groove 130 is adapted to the outer sidewall of the positioning section 320. During installation, the positioning section 320 sequentially passes through the connecting groove 120 and the positioning channel 110 and extends beyond the positioning channel 110. The positioning section 320 is then housed in the positioning groove 130. A step 140 is formed between the positioning groove 130 and the connecting groove 120, and the positioning section 320 stops on the step 140. Fasteners lock the positioning section 320 in the positioning groove 130.

[0055] In one embodiment, the tearable sheath is manually fitted onto the positioning core 300 and pushed into the positioning channel 110. It is understood that in other embodiments of this application, a robotic arm can also be used to fit the tearable sheath onto the positioning core 300 and push it into the positioning channel 110 to improve the insertion efficiency, accuracy, and stability of the tearable sheath.

[0056] In one embodiment, see Figures 3 to 5 The positioning element 100 has a rectangular block structure, which is simple in structure and easy to install. In other embodiments of this application, the positioning element 100 may also be cylindrical, elliptical cylindrical, cubic, or other irregular shapes.

[0057] In one embodiment, see Figure 1 and Figure 2 The tearable sheath processing device also includes an installation platform 500, on which the positioning element 100 is installed.

[0058] In one embodiment, see Figure 1 and Figure 2 The tearable sheath processing device also includes a horizontal support block 600 and a vertical support block 700. The horizontal support block 600 is installed on the installation platform 500, and the vertical support block 700 is vertically installed on the installation platform 500. The bottom end of the vertical support block 700 is locked to the horizontal support block 600. One end of the positioning member 100 is installed on the vertical support block 700, and the positioning member 100 is positioned directly above the horizontal support block 600.

[0059] In one embodiment, see Figure 5The positioning member 100 has a through hole 160 that is perpendicularly intersecting and communicating with the positioning channel 110; the through hole 160 is used for the drilling mechanism 400 to partially extend into it to drill holes in the tearable sheath.

[0060] It should be noted that the through hole 160 extends vertically, and the tearable sheath is cut horizontally to form two tube segments in the vertical direction. By connecting the through hole 160 and the positioning channel 110 perpendicularly, both the upper and lower tube segments can be perforated at the same time to ensure the reliability of the connection between the two tube segments and the connector.

[0061] In one embodiment, see Figure 5 When the positioning channel 110 is provided with a positioning core 300, the through hole 160 is set vertically through the positioning core 300.

[0062] In one embodiment, see Figure 5 The through hole 160 and the cutter 200 are spaced apart along the extension direction of the positioning channel 110 to avoid damage to the cutter 200 during drilling.

[0063] Specifically, the cutter 200 can be positioned closer to the entrance of the positioning channel 110 relative to the through hole 160, so that the through hole 160 is located on the cut segment of the tearable sheath.

[0064] In one embodiment, see Figure 1 and Figure 2 The drilling mechanism 400 includes a drill bit 430, a rotary drive 420, and a lifting drive 410. The rotary drive 420 is mounted on the output end of the lifting drive 410, and the drill bit 430 is mounted on the output end of the rotary drive 420. During drilling, the lifting drive 410 first drives the rotary drive 420 and the drill bit 430 to descend until the drill bit 430 contacts the tube segment. Then, the rotary drive 420 drives the drill bit 430 to rotate, while the lifting drive 410 drives the drill bit 430 to descend, thereby completing the drilling.

[0065] In one embodiment, the lifting drive 410 is a linear cylinder, a linear motor, or a ball screw structure.

[0066] In one embodiment, the rotary drive 420 is a rotary motor or a rotary cylinder.

[0067] In other embodiments of this application, the above-mentioned drilling mechanism 400 may also be a laser drilling mechanism 400 or a gas drilling mechanism 400.

[0068] In one embodiment, the tearable sheath processing device further includes a button electrically connected to the lifting drive 410. After the tearable sheath is cut, the lifting drive 410 can be activated by pressing the button, causing the lifting drive 410 and the rotation drive 420 to drive according to a preset program to complete the drilling. In this embodiment, drilling only requires pressing the button, making the operation simple. It is understood that in other embodiments of this application, a detection device can also be provided, electrically connected to the lifting drive 410, to detect the completion of the cutting and provide feedback to the lifting drive 410, thus eliminating the need to press the button.

[0069] In one embodiment, see Figure 1 and Figure 2 The tearable sheath processing device also includes a limiting member 440, which is used to limit the descent stroke of the lifting drive member 410, ensuring the descent accuracy of the drill bit 430 and preventing the drive member from driving the drill bit 430 to descend too far, which would cause structural interference between other structures on the drill bit 430 and the positioning member 100.

[0070] In one embodiment, see Figure 1 and Figure 2 The limiting component 440 is a micrometer, which abuts and limits the output end of the lifting drive component 410, thereby ensuring the descent accuracy of the drill bit 430. It is understood that in other embodiments of this application, the limiting component 440 may also be a limiting block or a limiting switch, etc., and is not limited to this specific embodiment.

[0071] Please see Figure 1 and Figure 2 The tearable sheath processing device also includes an outer cover 900, which is fitted over the rotary drive 420 to protect the rotary drive 420.

[0072] In one embodiment, see Figure 1 and Figure 2 The tearable sheath processing device also includes a column 800, which is vertically fixed on the mounting platform 500. A lifting drive 410 is mounted on the top of the column 800, a rotary drive 420 is mounted on the output end of the lifting drive 410, and a drill bit 430 is mounted on the output end of the lifting and rotary drive 420. A limiting member 440 is mounted on the lifting drive 410.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tearable sheath processing device, characterized by, The application relates to a sheath processing device. The sheath processing device comprises a positioning member, a cutter and a punching mechanism. The positioning member is provided with a positioning channel for positioning the end of a tearable sheath. The cutter is arranged in the positioning member and is used for radially cutting the end of the tearable sheath. The punching mechanism is used for punching the end of the tearable sheath positioned on the positioning member. The positioning member is further provided with a cutter slot which is vertically crossed and communicated with the positioning channel. The cutter is arranged in the cutter slot.

2. The tearable sheath machining device of claim 1, wherein, The positioning member is provided with a through hole which is vertically crossed and communicated with the positioning channel.

3. The tearable sheath machining device of claim 1, wherein, The through hole is used for partially extending the punching mechanism to punch the tearable sheath.

4. The tearable sheath machining device of claim 3, wherein, The through hole is spaced apart from the cutter along the extension direction of the positioning channel.

5. The tearable sheath machining device of any one of claims 1 to 4, wherein, The cutter cuts the end of the tearable sheath during the insertion of the tearable sheath into the positioning channel.

6. The tearable sheath machining device of any one of claims 1 to 4, wherein, One end of the positioning channel is provided with a limiting surface for limiting the insertion depth of the tearable sheath.

7. The tearable sheath machining device of claim 6, wherein, The cutter has a cutting edge line.

8. The tearable sheath machining device of claim 6, wherein, The distance between the cutting edge line and the limiting surface is the same as the cutting depth of the tearable sheath. The center of the positioning channel is provided with a positioning core. One end of the positioning core extends out of the positioning member. The tearable sheath is sleeved on the positioning core to guide the insertion of the tearable sheath into the positioning channel. The punching mechanism comprises a drill bit, a rotary driving member and a lifting driving member. The rotary driving member is installed on the output end of the lifting driving member. The drill bit is installed on the output end of the rotary driving member. The sheath processing device further comprises a button which is electrically connected with the lifting driving member. The sheath processing device further comprises a limiting member which is used for limiting the descending stroke of the lifting driving member.

Images