Stripper with punching device
By designing a stripper with a hole punching device, using a punching needle and/or a strip blade to punch or cut between the tumor tissue and the dura, the problems of dura damage and complex operation in the prior art are solved, and higher surgical safety and simplicity of operation are achieved.
Patent Information
- Application Number
- CN202421127597.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During surgery, it is difficult for the prior art to ensure that the dura tissue containing the spinal cord is not damaged, and at the same time, the tumor tissue is simply and conveniently separated from the dura, which has the risk of injury to the dura with the sharp edge of the scalpel, and the operation is complicated and the risk is high.
A stripper with a hole punching device is designed, including a curved end, a connecting rod and an operating handle, equipped with a punching needle and/or a strip blade to reduce the binding force between the tumor tissue and the dural by punching or cutting, and achieve the separation of the tumor and the dural.
Through hole punching or cutting, the bonding force between the tumor tissue and the dural is reduced, dura damage caused by scalpel cutting is avoided, and the safety of the surgery is improved. The doctor can operate with one hand, reducing the difficulty of the surgery.
Smart Images
Figure CN222604637U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a stripper with a punching device. Background Art
[0002] In the prior art, when it is necessary to remove tumor tissue that is closely attached to the dura mater containing the spinal cord, the doctor usually needs to hold a dissipator in one hand and insert it between the dura mater and the tumor tissue, and hold a scalpel in the other hand to remove the tumor tissue from around the dura mater. The disadvantages of this treatment method are that on the one hand, the sharp blade of the scalpel can easily injure the patient's dura mater and cause cerebrospinal fluid leakage, which in turn leads to symptoms of low intracranial pressure and increased risk of wound infection, and even if the spinal cord is damaged, it may cause varying degrees of paralysis in the patient; on the other hand, the doctor needs to coordinate the operation with both hands, which is risky. Summary of the invention
[0003] The utility model aims to provide a stripper with a punching device, and the technical problem to be solved at least includes how to ensure that the dura mater tissue containing the spinal cord is not damaged, and at the same time, the tumor tissue is separated from the dura mater simply and conveniently.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a peeling device with a punching device, comprising an arc-shaped end, a connecting rod and an operating handle, wherein the connecting rod is connected between the arc-shaped end and the operating handle; a needle outlet is arranged on the side of the arc-shaped end; a limiting groove is arranged on the side of the operating handle, and the limiting groove extends along the length direction of the operating handle; an operating convex head is arranged inside the limiting groove; the operating convex head can slide inside the limiting groove; one side of the lower end of the operating convex head is connected to a power transmission cable; a punching needle is arranged at the free end of the power transmission cable; a connecting guide groove is arranged inside the arc-shaped end, the connecting rod and the operating handle, and the power transmission cable can slide inside the guide groove; the end of the guide groove is connected to the needle outlet.
[0005] Preferably, a limiting spring extending along the length direction of the limiting groove is arranged in the limiting groove, one end of the limiting spring is fixedly arranged at the first end of the limiting groove, and the other end of the limiting spring is fixedly arranged on one side of the upper end of the operating protrusion.
[0006] Preferably, the limit spring is clamped or welded to one side of the upper end of the operating protrusion.
[0007] Preferably, the power transmission cable is welded or bonded to one side of the lower end of the operating boss.
[0008] Preferably, the punching needles are provided in plurality, and the plurality of punching needles are welded or glued to the free end of the power transmission cable.
[0009] Preferably, a strip blade is fixedly provided on the free end of the power transmission cable.
[0010] Preferably, there are a plurality of strip-shaped blades, and the plurality of strip-shaped blades are fixedly arranged parallel to each other at the free end of the power transmission cable.
[0011] Preferably, an anti-slip portion is provided on the outer surface of the operating handle.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The stripper with a punching device described in the utility model uses a punching needle and / or a strip blade to punch or cut on the side of the tumor tissue adjacent to the dura mater, which can reduce the binding force between the tumor tissue and the dura mater, and can separate the tumor tissue from the dura mater by pressing and tearing with conventional instruments without cutting with a scalpel, so the patient's dura mater will not be injured by the sharp blade of the scalpel, which greatly improves safety. At the same time, the doctor can complete the operation with only one hand, freeing the other hand to use other auxiliary surgical operating tools (such as an aspirator), greatly reducing the difficulty of surgical operation and improving the safety of surgery. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the specific implementation methods of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.
[0015] Figure 1 It is a schematic diagram of the overall structure of the stripper with a punching device described in the utility model.
[0016] Figure 2 It is a structural schematic diagram of the limiting groove described in the utility model.
[0017] Figure 3 It is a side view of the operating protrusion described in the utility model.
[0018] Figure 4 It is a structural schematic diagram of the power transmission cable described in the first embodiment of the utility model.
[0019] Figure 5 It is a schematic diagram of the end section of the inner core described in the first embodiment of the utility model.
[0020] Figure 6 It is a structural schematic diagram of the power transmission cable described in the second embodiment of the utility model.
[0021] Figure 7 It is a schematic diagram of the end section of the inner core described in the second embodiment of the utility model.
[0022] Figure 8 It is a schematic diagram of the end section of the inner core described in the third embodiment of the utility model. DETAILED DESCRIPTION
[0023] The present invention is described in more detail below to facilitate understanding of the present invention.
[0024] like Figures 1 to 5 As shown, the stripper with a punching device described in the utility model includes an arc-shaped end 1, a connecting rod 2 and an operating handle 3, and the connecting rod 2 is connected between the arc-shaped end 1 and the operating handle 3; a needle outlet 8 is provided on the side of the arc-shaped end 1; a limiting groove 4 is provided on the side of the operating handle 3, and the limiting groove extends along the length direction of the operating handle; an operating convex head 5 is provided inside the limiting groove; the operating convex head can slide inside the limiting groove; one side of the lower end 52 of the operating convex head is connected to the power transmission cable 7; a punching needle 77 is provided at the free end of the power transmission cable 7; a connecting guide groove is provided inside the arc-shaped end 1, the connecting rod 2 and the operating handle 3, and the power transmission cable 7 can slide inside the guide groove; the end of the guide groove is connected to the needle outlet 8.
[0025] When the operating convex head slides from the second end 42 of the limiting groove toward the first end 41, the operating convex head pushes the force transmission cable 7 to slide inside the guide groove toward the needle outlet 8; when the operating convex head slides to the first end 41 of the limiting groove, the force transmission cable 7 pushes the punching needle 77 out of the needle outlet 8, so that the punching needle 77 punches a hole on the side of the tumor tissue facing the dura mater; when the operating convex head slides from the first end 41 of the limiting groove toward the second end 42, the operating convex head drives the force transmission cable 7 to slide inside the guide groove toward the second end 42 of the limiting groove, and the force transmission cable 7 drives the punching needle 77 to retract from the needle outlet 8.
[0026] Preferably, if Figure 3 As shown, the overall appearance of the operating protrusion 5 is cylindrical, particularly a short cylindrical shape, and the operating protrusion 5 has an upper end 51 and a lower end 52 .
[0027] Preferably, a limit spring 6 extending along the length direction of the limit groove is arranged in the limit groove 4, one end of the limit spring is fixedly arranged at the first end 41 of the limit groove, and the other end of the limit spring is fixedly arranged on one side of the upper end 51 of the operating protrusion 5.
[0028] Preferably, the limiting spring 6 elastically presses the operating protrusion 5 toward the second end 42 of the limiting groove in a natural state.
[0029] Preferably, when the operating protrusion 5 leaves the second end 42 of the limiting groove and slides toward the first end 41, the limiting spring 6 is always in a compressed state.
[0030] Preferably, the limit spring 6 is clamped or welded to one side of the upper end 51 of the operating protrusion 5 .
[0031] Preferably, the power transmission cable 7 is welded or bonded to one side of the lower end 52 of the operating boss.
[0032] Preferably, the power transmission cable 7 includes an inner core 71, a spiral support layer 72 is tightly wound on the outer peripheral wall of the inner core, a metal mesh protective layer 73 is tightly wound on the outer peripheral wall of the spiral support layer, a resin protective layer 74 is tightly arranged on the outer peripheral wall of the metal mesh protective layer 73, and a lubricating layer 75 is tightly arranged on the outer peripheral wall of the resin protective layer.
[0033] The inner core 71 provides sufficient basic hardness and flexibility, and can easily form a firm connection with the punch needle 77 at the end. The material of the punch needle 77 is medical stainless steel, or the same material as a common scalpel. The spiral support layer 72 can increase the flexibility of the power transmission cable 7, thereby ensuring that the power transmission cable 7 smoothly enters the needle outlet 8 and extends from the needle outlet 8. If the spiral support layer 72 is not provided, the power transmission cable 7 tends to move in a straight line along the length direction of the connecting rod 2, and will not turn. If it cannot turn, it will not be able to smoothly enter the needle outlet 8. Continuing to apply force along the length direction of the limit groove 4 on the operating protrusion 5 will only cause the power transmission cable 7 to bend and fold in the guide groove.
[0034] The metal mesh protective layer 73 can increase the flexibility of the power transmission cable 7, increase the ability of the power transmission cable 7 to transmit the driving force along the axial direction, and further prevent the power transmission cable 7 from bending and breaking in the guide groove.
[0035] Experimental results show that the simultaneous provision of the spiral support layer 72 and the metal mesh protective layer 73 can find the best balance between the anti-bending ability and the torque transmission ability of the power transmission cable 7, taking both the anti-bending ability and the torque transmission ability into consideration, thereby greatly improving the comprehensive performance of the power transmission cable 7.
[0036] The resin protective layer 74 can improve the bonding tightness between the spiral support layer 72 and the metal mesh protective layer 73 and the inner core 71, and prevent the spiral support layer 72 and the metal mesh protective layer 73 from detaching from the inner core. The lubricating layer 75 can reduce the friction between the power transmission cable 7 and the guide groove, so that the power transmission cable 7 slides smoothly in the guide groove.
[0037] Figure 5 FIG. 2 shows the end structure of the inner core according to the first embodiment of the present utility model. Figure 5 As shown, a punching needle 77 is arranged at the center of the inner core. Each time the pushing operation protrusion 5 moves from the first end 41 toward the second end 42 of the limiting groove, the punching needle 77 extends from the needle outlet 8 once and punches a hole on the side of the tumor tissue facing the dura mater.
[0038] Figure 7 FIG. 2 shows the end structure of the inner core according to the second embodiment of the present utility model. Figure 7 As shown, the punching needles 77 are provided in plurality, and the plurality of punching needles are welded or glued to the free end of the power transmission cable 7. Specifically, the plurality of punching needles are welded or glued to the free end of the inner core. Each time the operation protrusion 5 is pushed from the first end 41 of the limiting groove toward the second end 42, a plurality of holes can be punched on the side of the tumor tissue facing the dura mater.
[0039] Figure 8 FIG. 2 shows the end structure of the inner core described in the third embodiment of the utility model. Figure 8 As shown, a strip blade 78 is fixedly provided at the free end of the power transmission cable 7. Preferably, a plurality of strip blades 78 are provided, and the plurality of strip blades are fixedly provided parallel to each other at the free end of the power transmission cable 7. Each time the operation convex head 5 is pushed to move from the first end 41 toward the second end 42 of the limiting groove, the plurality of strip blades can complete a cutting on the side of the tumor tissue facing the dura mater.
[0040] A plurality of strip blades can be used to replace a plurality of punching needles, that is, only a plurality of strip blades can be arranged at the free end of the inner core without punching needles. A plurality of strip blades and a plurality of punching needles can also be arranged at the same time, for example, the strip blades and the punching needles can be arranged at intervals.
[0041] Preferably, an anti-slip portion 9 is provided on the outer surface of the operating handle 3 .
[0042] The utility model relates to surgical operations around spinal cord tissue, and the highest risk is the risk of spinal cord injury (paralysis) after traction on the spinal cord tissue. Therefore, when performing tumor separation and resection operations around the dura mater containing the spinal cord, it is necessary to "bypass the dura mater" and complete the separation and resection of the tumor while minimizing the traction on the dura mater. This resection process is limited by the spinal bone tissue around the dura mater, the operating space is small, and the use of tools is limited. Moreover, tumor tissues are mostly rich in blood supply (i.e., rich in blood supply and easy to bleed), and there is often violent bleeding around the dura mater during the resection process. The above factors require that the operation of resecting tumors around the dura mater be fast and minimize the traction on the dura mater, which is extremely challenging.
[0043] Spinal tumors are common in the thoracic and lumbar spine, and most surgical approaches are dorsal. In the process of removing tumors around the dura mater, it is not difficult to remove the tumor tissue on the dorsal side of the dura mater, but when removing the tumor tissue on the ventral side of the dura mater, it is necessary to remove part of the tumor from both sides, gradually expand the operation range, create operation space, and make the operations on both sides meet in the midline. The above operations are often performed in a "pool of blood" and need to be completed quickly and with minimal interference to the dura mater. Therefore, it is convenient to tear the tumor tissue away from the dura mater or directly cut it with a strip blade after punching with a one-handed tool. The use of the new tool (i.e., the stripper with a punching device described in the utility model) can not only free the operator's other hand to use an aspirator to absorb the oozing blood, creating a clear operation field of view; but also quickly and safely complete the tumor removal operation in a limited space. The improvement of this step has positive significance in terms of protecting nerve tissue, saving operation time, and reducing surgical bleeding.
[0044] When the stripper with a punching device described in the utility model is used, the doctor holds the operating handle 3 by hand, inserts the arc-shaped end portion 1 between the tumor tissue and the dura mater, and the needle outlet 8 faces the tumor tissue. The doctor pushes the operating convex head 5 with his thumb to slide from the second end 42 of the limiting groove 4 toward the first end 41, overcoming the elastic force of the limiting spring 6. The operating convex head pushes the force transmission cable 7 to slide inside the guide groove toward the direction of the needle outlet 8; when the operating convex head slides to the first end 41 of the limiting groove, the force transmission cable 7 pushes the punching needle 77 and / or the strip blade 78 out of the needle outlet 8, so that the punching needle 77 and / or the strip blade 78 punches or cuts on the side of the tumor tissue facing the dura mater. The punching of the punch needle 77 or the cutting of the strip blade 78 can reduce the binding force between the tumor tissue and the dura mater, and the tumor tissue can be separated from the spinal cord by pressing and tearing with conventional instruments without cutting with a scalpel. Therefore, the patient's spinal cord will not be injured due to the sharp blade of the scalpel, which greatly improves safety. At the same time, the doctor can complete the operation with only one hand, which greatly reduces the difficulty of the operation.
[0045] After completing a punching or cutting, release the thumb, and the operating convex head 5 is pushed by the elastic force of the limit spring 6 to slide from the first end 41 of the limit groove toward the second end 42, and the operating convex head drives the force transmission cable 7 to slide inside the guide groove toward the second end 42 of the limit groove, and the force transmission cable 7 drives the punching needle 77 and / or the strip blade 78 to retract from the needle outlet 8.
[0046] The above describes the preferred embodiments of the present invention, but it is not intended to limit the present invention. Those skilled in the art may make improvements and changes to the embodiments disclosed herein without departing from the scope and spirit of the present invention.
Claims
1. A peeling device with a punching device, characterized in that: The stripper with a punching device includes an arc-shaped end, a connecting rod and an operating handle, wherein the connecting rod is connected between the arc-shaped end and the operating handle; a needle outlet is provided on the side of the arc-shaped end; a limiting groove is provided on the side of the operating handle, and the limiting groove extends along the length direction of the operating handle; an operating convex head is provided inside the limiting groove; the operating convex head can slide inside the limiting groove; one side of the lower end of the operating convex head is connected to the power transmission cable; a punching needle is provided at the free end of the power transmission cable; a connecting guide groove is provided inside the arc-shaped end, the connecting rod and the operating handle, and the power transmission cable can slide inside the guide groove; the end of the guide groove is connected to the needle outlet.
2. The peeling device with a punching device according to claim 1, characterized in that: A limiting spring extending along the length direction of the limiting groove is arranged in the limiting groove, one end of the limiting spring is fixedly arranged at the first end of the limiting groove, and the other end of the limiting spring is fixedly arranged on one side of the upper end of the operating protrusion.
3. The peeling device with a punching device according to claim 2, characterized in that: The limit spring is clamped or welded to one side of the upper end of the operating protrusion.
4. The peeling device with a punching device according to claim 1, characterized in that: The power transmission cable is welded or bonded to one side of the lower end of the operating protrusion.
5. The peeling device with a punching device according to claim 1, characterized in that: There are multiple punching needles, which are welded or glued to the free ends of the power transmission cable.
6. The peeling device with a punching device according to claim 1, characterized in that: A strip blade is fixedly arranged at the free end of the power transmission cable.
7. The peeling device with a punching device according to claim 6, characterized in that: There are a plurality of strip-shaped blades, which are fixedly arranged parallel to each other at the free end of the power transmission cable.
8. The peeler with a punching device according to claim 1, characterized in that: An anti-slip portion is arranged on the outer surface of the operating handle.