Disposable superfine minimally invasive electrotome

Abstract

The utility model discloses a disposable superfine minimally invasive electrotome which comprises an electrotome body, a superfine puncture needle sheath and a puncture needle, wherein the superfine puncture needle sheath and the puncture needle are used for assisting the electrotome body; wherein one end of the electrotome body is an electrotome head tip, the other end of the electrotome body is connected with a handle through an electrotome head interface part, and a wire connected with an electrocoagulation host is arranged on the handle. According to the superfine puncture needle disclosed by the utility model, an electrotome channel is established through the needle core and the needle sheath, so that surgical incisions are greatly reduced, surgical wounds are obviously reduced, and no obvious surgical scars exist after surgery; under the fixation of the superfine puncture needle sheath, the electrotome in the puncture needle sheath is more stable, so that the shaking of the electrotome is obviously reduced, and the possibility of secondary injury is reduced; the puncture needle is used for imbedding and follow-up operation under direct view, and is safe, reliable, simple to operate and easy to popularize; in the operation process, the puncture needle sheath can discharge smoke in the operation field through the needle sheath, if bleeding or seepage occurs in the operation field, the puncture needle sheath can be connected with negative pressure drainage to suck out liquid, the operation field is kept clear, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a disposable ultra-microinvasive electrosurgical knife. Background Art

[0002] The emergence and widespread use of conventional laparoscopic equipment has ushered in a new era for surgical procedures, offering advantages such as minimal surgical trauma, clearer anatomical structures, and rapid postoperative recovery. Currently, these devices are widely used in thoracic surgery, general surgery, urology, and gynecology. Furthermore, they can be used to create surgical operating spaces in many confined spaces or potential gaps through artificial means. For example, arthroscopy, transforaminal endoscopic discectomy, and thyroid and breast surgery have all achieved minimally invasive laparoscopic procedures. As patients increasingly demand minimally invasive procedures, they are also demanding smaller incisions, less scarring, and more cosmetic results.

[0003] During laparoscopic surgery, a channel is created, typically a puncture tube or trocar, through which a camera and operating instruments are inserted. Trocars are typically available in sizes of 5mm, 10mm, and 12mm. After the procedure is complete, the trocar is removed and the incision is sutured. This scar, which can vary in size depending on the size of the incision and individual factors, is what led to the development of single-port laparoscopic surgery.

[0004] Single-port laparoscopic surgery generally establishes channels in relatively hidden areas such as the navel, armpits, mouth, vagina, and posterior axillary line. A camera and operating instruments are usually placed in the same channel for surgery. After the operation, the incision is sutured. Because the special incision location can hide scars, it is popular with everyone. However, during the operation, since all instruments enter the surgical site through the same channel, there is a "chopsticks" effect between the instrument and the camera, or between instruments, which interfere with each other, affect the surgical operation, and have potential surgical risks, which significantly increase the difficulty of the operation and prolong the operation time and anesthesia time.

[0005] Therefore, there is an urgent need for a surgical tool that can achieve the operational advantages of a multi-hole laparoscope while also achieving less trauma and better cosmetic results. Utility Model Content

[0006] The utility model aims to provide a disposable ultra-micro-invasive electrosurgery tool to solve the problem of how to obtain a surgical tool that can realize the operational advantages of a multi-hole laparoscope while achieving less trauma and better cosmetic effects.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The utility model provides a disposable ultra-fine micro-invasive electrosurgery unit, comprising an electrosurgery unit body, an ultra-fine puncture needle sheath and a puncture needle for assisting the use of the electrosurgery unit body; wherein one end of the electrosurgery unit body is the tip of the electrosurgery unit head, and the other end thereof is connected to a handle through an electrosurgery unit head interface; and a wire connected to an electrocoagulation host is provided on the handle.

[0009] Furthermore, an on / off key is provided on the handle, and the on / off key includes an electric cutting key and an electric coagulation key.

[0010] Furthermore, the ultra-fine puncture needle sheath includes a catheter with an inner diameter larger than the outer diameter of the puncture needle, and a needle sheath connector arranged at one end of the catheter.

[0011] Furthermore, one end of the puncture needle is provided with a puncture needle tip, and the other end thereof is provided with a spiral joint that is locked and connected to the needle sheath joint.

[0012] Furthermore, the tip of the puncture needle is a triangular sharp needle tip, the length of which extending from one end of the ultra-fine puncture needle sheath is 1-2 cm, and the total length of the ultra-fine puncture needle sheath and the puncture needle is 5-35 cm.

[0013] Furthermore, the outer diameter of the electrosurgical unit is smaller than the inner diameter of the ultra-fine puncture needle sheath;

[0014] The tip of the electric knife head is a bare metal with a length of 0.2-1.0 cm. An anti-stick coating is provided on the outside of the tip of the electric knife head, which is needle-shaped or flat.

[0015] Furthermore, the length of the electric knife head interface part is 1-3 cm, and the electric knife head interface part is bare metal, one end of which is connected to the electric knife body, and the other end is connected to the handle.

[0016] Furthermore, a gradually changing diameter structure is provided at the connection between the electric knife body and the interface portion of the electric knife head. The length of the gradually changing diameter structure is 2-5 cm, and the outer wall of the gradually changing diameter structure is wrapped with a thickened anti-slip insulating material.

[0017] This embodiment provides a method for using a disposable ultra-fine micro-invasive electrosurgical unit. After general anesthesia and establishing space, a laparoscope camera and other instruments are inserted through the puncture device. Under direct vision of the camera, the ultra-fine puncture needle sheath is inserted into the puncture needle, and the tail ends of the two are spirally fixed. A scalpel is used to incise the skin 2 mm at the intended operation site, and the puncture needle is inserted at the incision site. After the ultra-fine puncture needle sheath reaches the surgical operation site, the puncture needle is withdrawn, the ultra-fine puncture needle sheath is retained, and the electrosurgical unit is inserted. Depending on the surgical situation, the electrocoagulation or electrocuting function can be controlled by pressing the electrocoagulation or electrocuting button on the handle or by using the foot switch. After the operation is completed, the electrosurgical unit is withdrawn first, then the ultra-fine puncture needle sheath is withdrawn, and finally disinfected and covered with a dressing for fixation.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are:

[0019] The ultrafine puncture needle in the present invention establishes an electric knife channel through the needle core and the needle sheath, which greatly reduces the surgical incision, significantly reduces the surgical trauma, and has no obvious surgical scars after the operation; under the fixation of the ultrafine puncture needle sheath, the electric knife inside it is more stable, significantly reduces the shaking of the electric knife, and reduces the possibility of secondary damage; the puncture needle is inserted and subsequently operated under direct vision, which is safe and reliable, simple to operate, and easy to promote; during the operation, the puncture needle sheath can discharge the smoke in the surgical field through the needle sheath, and if bleeding or exudation occurs in the surgical field, it can be connected to the negative pressure drainage to suck out the liquid, keep the surgical field clear, and facilitate operation; other ultra-minimally invasive instruments can be inserted through the needle sheath to reduce surgical trauma. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the disposable ultra-microinvasive electrosurgical unit of the present invention;

[0022] Figure 2 This is a schematic diagram of a puncture needle sheath used in conjunction with the disposable ultra-microinvasive electrosurgical unit of the present invention;

[0023] Figure 3 A schematic diagram of a needle core used in conjunction with a puncture needle sheath;

[0024] Figure 4 It is a structural diagram of the puncture needle sheath and needle core.

[0025] Explanation of the accompanying reference numerals: 1. Ultra-fine puncture needle sheath; 101. Needle sheath connector; 2. Puncture needle; 201. Spiral connector; 202. Puncture needle tip; 3. Electric knife body; 301. Electric knife head tip; 302. Electric knife head interface; 303. Handle; 3031. Electric cutting key; 3032. Electric coagulation key; 304. Guide wire. DETAILED DESCRIPTION

[0026] This embodiment provides a disposable ultra-fine micro-invasive electrosurgical unit, which comprises two parts, one of which is an ultra-fine puncture needle sheath with an outer diameter of ≤2 mm, containing a needle core, and a sharp triangular-shaped needle tip at the front end. The needle core is slightly longer than the ultra-fine puncture needle sheath by about 1-2 cm, and its outer diameter is slightly smaller than the inner diameter of the needle sheath. The total length of the needle sheath and needle core is 5-35 cm. The tail end of the needle core can be screwed to the outer ultra-fine puncture needle sheath.

[0027] The second part is an ultrafine electric knife, which is divided into an electric knife head and a handle. The electric knife head is divided into three parts, namely the tip of the electric knife head, the electric knife body, and the interface of the electric knife head. The total length of the electric knife head is slightly longer than the sheath of the ultrafine puncture needle. It is made of super hard metal and wrapped with insulating, non-toxic, heat-resistant materials. The diameter of the electric knife body is ≤ the outer diameter of the needle core; the tip of the electric knife is 0.2-1.0cm bare metal, with an anti-stick coating on the outside, and the front end metal can be needle-shaped or flat; the metal diameter of the electric knife body is thickened 2-5cm between the electric knife body and the interface of the electric knife head, and is wrapped with thickened non-slip insulating material on the outside. The electric knife interface is 1-3cm long, bare metal, and its outer diameter is equal to the same as the inner diameter of the handle interface, and is connected to the handle; the handle is thickened, the same as the currently used handle or coagulation hook handle, which is easy to hold. The coagulation and cutting buttons can be pressed on it, and the connecting line is connected to the coagulation host.

[0028] In this embodiment, specifically, the disposable ultra-fine micro-invasive electrosurgery unit includes an electrosurgery unit body 3, an ultra-fine puncture needle sheath 1 and a puncture needle 2 for assisting the use of the electrosurgery unit body 3; wherein one end of the electrosurgery unit body 3 is an electrosurgery head tip 301, and the other end thereof is connected to a handle 303 through an electrosurgery head interface 302, and a wire 304 connected to the electrocoagulation host is installed on the handle 303.

[0029] Specifically, in this embodiment, an on / off key is provided on the handle 303 , and the on / off key includes an electric cutting key 3031 and an electric coagulation key 3032 .

[0030] In this embodiment, the ultra-fine puncture needle sheath 1 includes a catheter with an inner diameter larger than the outer diameter of the puncture needle 2, and a needle sheath connector 101 installed at one end of the catheter; one end of the puncture needle 2 is integrally connected to the puncture needle tip 202, and the other end is equipped with a spiral connector 201 that is locked with the needle sheath connector 101.

[0031] In this embodiment, the puncture needle tip 202 is a triangular sharp needle tip, which extends from one end of the ultra-fine puncture needle sheath 1 by 1-2 cm. The total length of the ultra-fine puncture needle sheath 1 and the puncture needle 2 is 5-35 cm.

[0032] In this embodiment, the outer diameter of the electroscalpel body 3 is smaller than the inner diameter of the ultra-fine puncture needle sheath 1; the electroscalpel tip 301 is a bare metal with a length of 0.2-1.0 cm, and an anti-stick coating is applied to the outside of the electroscalpel tip 301, which is specifically designed to be needle-shaped or flat.

[0033] In this embodiment, the length of the electric knife head interface part 302 is 1-3 cm. The electric knife head interface part 302 is bare metal, one end of which is connected to the electric knife body 3 , and the other end is connected to the handle 303 .

[0034] In this embodiment, a gradually changing diameter structure is designed at the connection between the electrosurgical unit 3 and the electrosurgical head interface portion 302, wherein the electrosurgical unit 3 is fixedly inserted into the handle 303 through the electrosurgical head interface portion 302; the length of the gradually changing diameter structure is 2-5 cm, and the outer wall of the gradually changing diameter structure is wrapped with a thickened anti-slip insulating material; wherein the gradually changing diameter structure is designed, on the one hand, to prevent the electrosurgical unit from passing through the needle sheath too deep; on the other hand, in order to connect with the handle 303, the connection generally has a universal diameter.

[0035] This embodiment discloses a method for using a disposable ultra-microinvasive electrosurgical unit;

[0036] After general anesthesia and space establishment, the laparoscopic camera and other instruments are inserted through the puncture device. Under direct vision of the camera, the ultra-fine puncture needle sheath 1 is inserted into the puncture needle 2, and the tail ends of the two are spirally fixed. A scalpel is used to cut the skin 2mm at the intended operation site, and the puncture needle 2 is inserted at the incision site. After the ultra-fine puncture needle sheath 1 reaches the surgical operation site, the puncture needle 2 is withdrawn, the ultra-fine puncture needle sheath 1 is retained, and the electric knife body 3 is inserted. Depending on the surgical situation, the electric coagulation or electric cutting button on the handle 303 or the foot switch can be used to control the electric coagulation or electric cutting function. After the operation is completed, the electric knife body 3 is withdrawn first, then the ultra-fine puncture needle sheath 1 is withdrawn, and finally disinfected and covered with a dressing.

[0037] The above embodiments are only descriptions of the preferred methods of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A disposable ultra-microinvasive electrosurgical unit, characterized by: The invention comprises an electric knife body (3), an ultra-fine puncture needle sheath (1) and a puncture needle (2) for assisting the use of the electric knife body (3); wherein one end of the electric knife body (3) is an electric knife head tip (301), and the other end thereof is connected to a handle (303) via an electric knife head interface (302); and a wire (304) connected to an electrocoagulation main unit is provided on the handle (303).

2. The disposable ultra-microinvasive electrosurgical unit according to claim 1, characterized in that: The handle (303) is provided with an on / off key, which includes an electric cutting key (3031) and an electric coagulation key (3032).

3. The disposable ultra-microinvasive electrosurgical unit according to claim 1, characterized in that: The ultra-fine puncture needle sheath (1) comprises a catheter with an inner diameter larger than the outer diameter of the puncture needle (2), and a needle sheath connector (101) arranged at one end of the catheter.

4. The disposable ultra-microinvasive electrosurgical unit according to claim 3, characterized in that: One end of the puncture needle (2) is provided with a puncture needle tip (202), and the other end thereof is provided with a spiral joint (201) that is locked and connected to the needle sheath joint (101).

5. The disposable ultra-microinvasive electrosurgical unit according to claim 4, characterized in that: The puncture needle tip (202) is a sharp triangular-shaped needle tip, and its length extending from one end of the ultra-fine puncture needle sheath (1) is 1-2 cm. The total length of the ultra-fine puncture needle sheath (1) and the puncture needle (2) is 5-35 cm.

6. The disposable ultra-microinvasive electrosurgical unit according to claim 1, characterized in that: The outer diameter of the electrosurgical unit (3) is smaller than the inner diameter of the ultra-fine puncture needle sheath (1); The tip (301) of the electric knife head is a bare metal with a length of 0.2-1.0 cm. An anti-stick coating is provided on the outside of the tip (301) of the electric knife head, and the tip is needle-shaped or flat.

7. The disposable ultra-microinvasive electrosurgical unit according to claim 1, characterized in that: The length of the electric knife head interface part (302) is 1-3 cm. The electric knife head interface part (302) is bare metal, one end of which is connected to the electric knife body (3), and the other end is connected to the handle (303).

8. The disposable ultra-microinvasive electrosurgical unit according to claim 7, characterized in that: A gradually changing diameter structure is provided at the connection between the electric knife body (3) and the electric knife head interface portion (302), the length of the gradually changing diameter structure being 2-5 cm, and the outer wall of the gradually changing diameter structure is wrapped with a thickened anti-slip insulating material.

Images