Puncture guide wire incision knife for spine endoscope

Abstract

The invention relates to the technical field of medical instruments, in particular to a puncture guide wire incision knife for a spine endoscope, which comprises a knife body and a knife handle, knife edges are integrally formed on two sides and the front end of the knife body, the knife edges on the two sides can be in various specifications such as 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm and 20mm in width, the knife edges on the tip end and the tail end are about 3mm in width, and the knife edges on the tip end and the tail end of the knife body can be in various specifications such as 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm and 20mm in width. The rear end of the cutter body is fixedly connected with an external threaded column, one end of the cutter handle is provided with an internal threaded hole, and the external threaded column is in threaded connection with the inner side wall of the internal threaded hole; the multi-specification blade width is provided, the size requirements of different operation channels can be accurately matched, it is guaranteed that the length of an incision is perfectly matched with the operation channel, a series of problems caused by the fact that the incision is too long or too short are avoided, a stable and appropriate operation space is provided for operation, and it is guaranteed that the operation is conducted smoothly.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a percutaneous guidewire cutting knife used in spinal endoscopy. Background Technology

[0002] In spinal endoscopic surgery, incision management is a crucial foundational step. Currently, conventional scalpels are commonly used for incision, but this method has several drawbacks. With conventional scalpels, it's difficult to precisely control the shape and length of the incision, resulting in irregular and unsightly cuts. Regarding incision length, the lack of precise references means that an incision that is too short will leave insufficient space for subsequent surgical operations, requiring a second incision and increasing the risk of trauma and infection for the patient. Conversely, an incision that is too long can lead to leakage around the incision site during surgery, affecting the clarity of the surgical field, interfering with the surgical process, and potentially even adversely affecting the surgical outcome and increasing surgical risks. Therefore, a percutaneous guidewire incision scalpel for spinal endoscopy is proposed. Summary of the Invention

[0003] In view of this, the present invention provides a percutaneous guidewire cutting knife for use in spinal endoscopy to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0004] The technical solution of this invention is implemented as follows: A percutaneous guidewire cutting knife used in spinal endoscopy includes a blade body and a handle. The blade body has blades integrally formed on both sides and the front end. The blade width on both sides can be of various specifications such as 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, and 20mm. The blade width at the tip and tail end is about 3mm. An external threaded post is fixedly connected to the rear end of the blade body. An internal threaded hole is opened at one end of the handle. The external threaded post is threadedly connected to the inner wall of the internal threaded hole.

[0005] More preferably, one end of both the blade body and the blade handle is provided with a through hole, and a guide wire passes through the inner wall of the through hole.

[0006] More preferably, the thickness of the blade body is 2-3 mm, the inner diameter of the through hole is 1.0 mm, through which a 1.0 mm wire can pass, and the thickness of the handle is 3 mm, the width is 10 mm, and the length is 100 to 150 mm.

[0007] More preferably, the blade body and the handle are made of medical-grade stainless steel, the blade edge is hardened, and the outer side wall of the handle is uniformly provided with multiple anti-slip horizontal lines.

[0008] More preferably, the blade body has a thickness of 2-3 mm in the middle, a length of 12 to 16 mm, a cutting edge length of 6 to 8 mm at the front end, and an inner diameter of 1.0 mm for a 1.0 mm wire to pass through.

[0009] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions:

[0010] I. This invention provides blade widths of 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, and 20mm, which can precisely match the size requirements of different surgical channels, ensuring that the incision length perfectly matches the surgical channel, avoiding a series of problems caused by incisions that are too long or too short, providing a stable and suitable operating space for surgical operations, and ensuring the smooth progress of the surgery.

[0011] Second, the blade of this invention has cutting edges on both sides and the front end, and the blade edges are designed in a diamond shape. This allows for multi-directional cutting during the cutting process, resulting in a neater and smoother incision, significantly improving the aesthetics of the postoperative incision. At the same time, the neat incision helps reduce postoperative scar formation and reduces the psychological burden on patients.

[0012] Third, this invention improves the accuracy and controllability of the incision operation by guiding the incision with a guidewire, avoiding tissue loss caused by blind incision. Furthermore, the appropriate incision length and good incision sealing can prevent water leakage during the operation, maintain a clear surgical field, reduce the difficulty of the operation, reduce the surgical risk, and improve the success rate of the operation.

[0013] Fourth, the blade and handle of this invention are designed to be detachable with a threaded connection, which makes it easy to quickly change blades of different specifications according to the actual surgical situation and meet diverse surgical needs.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is a structural diagram from another perspective of the present invention;

[0018] Figure 3 This is a structural diagram of the blade body of the present invention;

[0019] Figure 4 This is a structural diagram of the knife handle of the present invention.

[0020] Reference numerals: 1. Blade body; 11. Blade edge; 12. External threaded post; 2. Blade holder; 21. Through hole; 22. Internal threaded hole; 23. Anti-slip cross grooves; 3. Guide wire. Detailed Implementation

[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] like Figure 1-4 As shown, this embodiment of the invention provides a percutaneous guidewire cutting knife for spinal endoscopy, including a blade body 1 and a handle 2. The blade body 1 has blades 11 integrally formed on both sides and the front end. The blade width of the blades 11 on both sides can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm and other specifications. The blade width at the tip and tail end is about 3 mm. An external threaded post 12 is fixedly connected to the rear end of the blade body 1. One end of the handle 2 has an internal threaded hole 22. The external threaded post 12 is threadedly connected to the inner wall of the internal threaded hole 22.

[0024] In one embodiment, a through hole 21 is provided at one end of both the blade body 1 and the handle 2, and a guide wire 3 is passed through the inner wall of the through hole 21.

[0025] In one embodiment, the blade body 1 has a thickness of 2-3 mm in the middle, a length of 12 to 16 mm, a cutting edge length of 6 to 8 mm at the front end, and an inner diameter of 1.0 mm for a 1.0 mm wire to pass through. The handle 2 has a thickness of 3 mm, a width of 10 mm, and a length of 100 to 150 mm.

[0026] In one embodiment, the blade body 1 and the handle 2 are made of medical-grade stainless steel, the blade 11 is hardened, and the outer side wall of the handle 2 is evenly provided with multiple anti-slip horizontal grooves 23.

[0027] In operation, this invention works as follows: Based on the patient's specific surgical needs and the specifications of the surgical channel, a blade body 1 with an appropriate blade width is selected. The external threaded post 12 at the rear end of the blade body 1 is threadedly connected to the internal threaded hole 22 at one end of the handle 2, ensuring a stable assembly of the blade body 1 and the handle 2. Simultaneously, a guide wire 3 of appropriate specifications is prepared, and its integrity is checked. The guide wire 3 is then passed through the through hole 21 at one end of the blade body 1 and the handle 2, completing the assembly and preparation of the cutting knife. After routine disinfection and draping of the surgical site, a puncture needle is used to insert the guide wire 3 along the puncture needle channel, ensuring it reaches the predetermined surgical site and providing a guiding path for the cutting knife. The assembled cutting knife with the punctured guide wire 3 is slowly advanced along the inserted guide wire 3. Using the integrated rhomboid blades 11 on both sides and the front end of the blade body 1, the skin and subcutaneous tissue are cut sequentially. During the cutting process, the cutting knife and guide wire 3 are kept in close contact to ensure the accuracy of the cutting path until the appropriate incision depth and length are achieved.

[0028] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A percutaneous guidewire cutting knife for spinal endoscopy, characterized in that: The tool includes a blade body (1) and a handle (2). The blade body (1) has blades (11) integrally formed on both sides and the front end. The blade width of the blades (11) on both sides can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm and other specifications. The blade width at the tip and tail end is about 3 mm. The rear end of the blade body (1) is fixedly connected to an external threaded post (12). One end of the handle (2) is provided with an internal threaded hole (22). The external threaded post (12) is threaded to the inner wall of the internal threaded hole (22).

2. The percutaneous guidewire cutting knife for spinal endoscopy according to claim 1, characterized in that: Both the blade body (1) and the handle (2) have through holes (21) at one end, and guide wires (3) pass through the inner wall of the through holes (21).

3. The percutaneous guidewire cutting knife for spinal endoscopy according to claim 1, characterized in that: The blade body (1) has a thickness of 2-3 mm in the middle and a length of 12 to 16 mm. The front end has an edge length of 6 to 8 mm. The through hole (21) has an inner diameter of 1.0 mm, through which a 1.0 mm wire can pass. The handle (2) has a thickness of 3 mm, a width of 10 mm, and a length of 100 to 150 mm.

4. The percutaneous guidewire cutting knife for spinal endoscopy according to claim 1, characterized in that: The blade (1) and the handle (2) are made of medical stainless steel. The blade (11) is hardened and the outer side wall of the handle (2) is evenly provided with multiple anti-slip horizontal grooves (23).

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