Puncture guide device and application method thereof

Abstract

The present invention relates to the field of surgical instrument technology, and in particular to a puncture guide device and an application method thereof. The puncture guide device includes a puncture guide portion, and the puncture guide portion includes a needle body and a connecting rod. The needle body is in the shape of an arc, and the needle body includes a needle tip and a guide body. One end of the guide body is connected to the connecting rod, and the other end is connected to the needle tip. A hole is provided on the needle tip, and the connecting rod is perpendicular to the plane where the needle body is located. The arc-shaped needle body is more in line with the structure of human tissue, and the target positioning is more accurate and avoids damage to the tissue around the surgical target position during the operation, providing a good adaptation device for the surgical operation of the arc-shaped target body. The hole of the needle tip cooperates with the guide body to place a guide wire or a product used in the operation into the target body, which greatly simplifies the surgical operation process, does not require incision, reduces damage and is easy to recover, and avoids postoperative problems caused by incision surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical instruments, and in particular to a puncture guide device and an application method thereof. Background Art

[0002] Due to the special structure of the female vagina in the human body, the existing surgical instruments are not sufficient to introduce the medical device materials used in the operation into the posterior vaginal wall tissue and the vulva. The traditional surgical method generally cuts the posterior vaginal wall, separates the muscles, and tightens and sutures the loose bulbospongiosus and vaginal sphincter. The damage is large and the recovery is relatively slow. The removal of part of the mucosal tissue of the posterior wall is likely to cause damage to the sensory nerves of the vaginal mucosa, further aggravating the possibility of sexual dysfunction. In addition, the rectum may be damaged during the separation and dissection of the posterior wall, causing rectovaginal fistula. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a puncture guide device, in which the arc-shaped needle body is more in line with the structure of human tissue, the target positioning is more accurate and damage to the tissue around the surgical target position is avoided during the operation, providing a good adaptation device for the surgical operation of the arc-shaped target body. The hole of the needle tip cooperates with the guide body to place the guide wire or the product used in the operation into the target body, which greatly simplifies the surgical operation process, does not require incision, reduces damage and is easy to recover, and avoids postoperative problems caused by incision surgery.

[0004] The present invention also provides an application method of the second puncture guide device.

[0005] The present invention also provides a third application method of the puncture guide device.

[0006] The present invention also provides a fourth application method of the puncture guide device.

[0007] According to the first aspect of the present invention, the puncture guide device includes a puncture guide part, which includes a needle body and a connecting rod. The needle body is in the shape of an arc. The needle body includes a needle tip and a guide body. One end of the guide body is connected to the connecting rod, and the other end is connected to the needle tip. The needle tip is provided with a hole, and the connecting rod is perpendicular to the plane where the needle body is located.

[0008] According to an embodiment of the present invention, the needle body is bent upward clockwise or counterclockwise relative to the connecting rod to form an arc shape.

[0009] According to one embodiment of the present invention, the arc length of the guide body is less than or equal to 56 mm.

[0010] According to one embodiment of the present invention, the needle tip is in the shape of a flat cone, the distance between the center of the hole and the tip of the needle tip is 4 mm to 10 mm, and the distance between the edge of the hole and the tip of the needle tip is 3 mm to 9 mm.

[0011] According to an embodiment of the present invention, the hole is elliptical in shape, with a minor axis length of 0.8 mm to 1.6 mm and a major axis length of 2 mm to 6 mm.

[0012] According to one embodiment of the present invention, it also includes a handle portion, which is connected to the connecting rod. The handle portion is constructed with at least one plane extending along the axial direction of the handle portion, and the plane is parallel to the direction of the chord length of the guide body. The handle portion has a length of 115 mm, a thickness of 10 mm, and a width of 15 mm.

[0013] According to an embodiment of the present invention, the handle portion is further configured with a groove at a position close to the puncture guide portion, the groove is located on the plane, the distance between the groove and the puncture guide portion is 17 mm, and the width of the groove is 9 mm.

[0014] The method for using the puncture guide device according to the second aspect of the present invention includes:

[0015] S1, opening entrance A and entrance B at the junction of the labia minora and the mucosa outside the vaginal opening, and the entrance A and entrance B are located on the same horizontal line;

[0016] S2, puncture the bio-band under the mucosa of the posterior vaginal wall to the contralateral entrance B through the puncture guide device at the entrance A;

[0017] S3, using the puncture guide device to puncture the biological band under the mucosa of the posterior vaginal wall at the entrance B to the entrance A on the opposite side, and pulling and tightening the biological band at the entrance A;

[0018] S4, the biological band is tightened to a predetermined tension and then sutured and fixed to the deep tissue.

[0019] The method for using the puncture guide device according to the third aspect of the present invention includes:

[0020] S1, using one of the puncture guide devices to puncture a first puncture hole on the side wall of the vaginal opening, penetrating the submucosal layer of the lower half of the vaginal opening;

[0021] S2, introducing the first biological band into the submucosal layer below the vaginal opening, and the puncture guide device passes through the second puncture hole on the side wall of the other side of the vaginal opening;

[0022] S3, using another puncture guide device to puncture the second puncture hole on the side wall of the other vaginal opening, making another tunnel under the mucosa to the first puncture hole on the side wall of the vaginal opening, and introducing the second biological band through the tunnel under the mucosa;

[0023] S4, tighten the first biological band and the second biological band, and fix and suture them under the mucosa.

[0024] According to the fourth aspect of the present invention, the method for using the puncture guide device as described above comprises:

[0025] S1, determine the location of the muscle end between the vaginal opening and the anus;

[0026] S2, introducing the biological band into the body through the puncture guide device and passing it out from the opposite muscle stump;

[0027] S3, guiding and pulling the biological band from the opposite side in the opposite direction to pass it out again;

[0028] S4, tightening the bio-belt.

[0029] The above one or more technical solutions in the embodiments of the present invention have at least the following technical effects:

[0030] The puncture guide device of the embodiment of the present invention comprises a circular arc needle body and a connecting rod connected to the guide body of the needle body, so that the puncture guide part is in the shape of a hook, and the needle tip of the needle body has a hole for the wire and the products used in the operation to pass through. The needle body and the connecting rod are arranged in an L shape, and the connecting rod is in a straight line shape, which is convenient for guiding and bearing force. The circular arc needle body can adapt to the target body with an arc shape. After the needle tip penetrates the target body from one end of the arc edge of the target body, the circular arc guide body enters the inside of the target body and matches the arc of the target body. The needle tip can pass through the other end of the arc edge of the target body to complete the surgical operation on the arc target body. The circular arc needle body is more in line with the structure of human tissue, the target positioning is more accurate and avoids damage to the tissue around the surgical target position during the operation, providing a good adaptation device for the surgical operation of the arc target body. The hole at the needle tip cooperates with the guide body to place the guide wire or the product used in the operation into the target body, which greatly simplifies the surgical operation process. There is no need for incision, which reduces damage and facilitates recovery, avoiding postoperative problems caused by incision surgery.

[0031] The present invention can be used in gynecology or private plastic surgery, and is suitable for vaginal relaxation. Through the present invention, the medical device material is introduced into the posterior wall of the vagina and the vulva, and the posterior wall of the vagina and the vulva are effectively tightened by the shoelace method. Better effects can be achieved by cooperating with professional medical device products. The needle body is designed according to the anatomical structure of the private parts of the human body, with a reasonable design, convenient and simple operation, small trauma, and fast recovery. Specifically, it can be used as an instrument for minimally invasive 3D bio-band vaginal tightening surgery, which simplifies the surgical operation process, does not require incision, reduces damage and is easy to recover, and can avoid the occurrence of rectal fistula. A minimally invasive method is used to tighten the pelvic floor related muscles, reconstruct the perineal body structure, and improve the problems of pelvic floor dysfunction and vaginal relaxation.

[0032] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted, and the advantages brought about by the technical features of these technical solutions described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 2 is a schematic structural diagram of a semicircular arc-shaped needle body of a puncture guide device according to an embodiment of the present invention;

[0034] Figure 2 2 is a schematic structural diagram of a 3 / 8 arc-shaped needle body of a puncture guide device according to an embodiment of the present invention;

[0035] Figure 3 is a schematic structural diagram of a puncture guide portion of a puncture guide device according to an embodiment of the present invention;

[0036] Figure 4 is a schematic structural diagram of a puncture guide device according to an embodiment of the present invention;

[0037] Figure 5 yes Figure 4 Enlarged view of local D;

[0038] Figure 6 This is a schematic diagram of the dimensions of a 3 / 8 arc-shaped needle body of a puncture guide device according to an embodiment of the present invention;

[0039] Figure 7 It is a schematic structural diagram of the handle portion of the puncture guide device according to an embodiment of the present invention.

[0040] In the figure:

[0041] 1: puncture guide; 11: needle body; 12: connecting rod; 111: needle tip; 112: guide body; 113: hole;

[0042] 2: handle; 21: groove. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more, and "several", "several roots", and "several groups" mean one or more.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, the puncture guide device provided by the embodiment of the present invention includes a puncture guide part 1, the puncture guide part 1 includes a needle body 11 and a connecting rod 12, the needle body 11 is in the shape of an arc, the needle body 11 includes a needle tip 111 and a guide body 112, one end of the guide body 112 is connected to the connecting rod 12, and the other end of the guide body 112 is connected to the needle tip 111, the needle tip 111 is provided with a hole 113, and the connecting rod 12 is perpendicular to the plane where the needle body 11 is located.

[0047] The puncture guide device of the embodiment of the present invention comprises a puncture guide part 1 including an arc-shaped needle body 11 and a connecting rod 12 connected to a guide body 112 of the needle body 11, so that the puncture guide part 1 is in a hook shape, and the needle tip 111 of the needle body 11 has a hole 113 for the wire and the products used for surgery to pass through. The needle body 11 and the connecting rod 12 are arranged in an L shape, and the connecting rod 12 is in a straight line shape, which is convenient for guiding and bearing force. The arc-shaped needle body 11 can adapt to the target body with an arc shape. After the needle tip 111 penetrates the target body from one end of the arc edge of the target body, the arc-shaped guide body enters the inside of the target body and matches the arc of the target body. The needle tip 111 can penetrate from the other end of the arc edge of the target body to complete the surgical operation on the arc-shaped target body. The arc-shaped needle body 11 is more in line with the structure of human tissue, the target positioning is more accurate, and the tissue around the surgical target position can be avoided from being damaged during the operation, providing a good adaptation device for the surgical operation of the arc-shaped target body. The hole 113 of the needle tip 111 cooperates with the guide body to place the guide wire or the product used in the operation into the target body, which greatly simplifies the surgical operation process, eliminates the need for incision, reduces damage and facilitates recovery, and avoids postoperative problems caused by incision surgery.

[0048] The present invention can be used in gynecology or private plastic surgery, and is suitable for vaginal relaxation. Through the present invention, the medical device material is introduced into the posterior wall of the vagina and the vulva, and the posterior wall of the vagina and the vulva are effectively tightened by the shoelace method. In combination with professional medical device products, better effects can be achieved. The needle body 11 is designed according to the anatomical structure of the private parts of the human body, with a reasonable design, convenient and simple operation, small trauma, and fast recovery. Specifically, it can be used as an instrument for minimally invasive 3D bio-band vaginal tightening surgery, which simplifies the surgical operation process, does not require incision, reduces damage and is easy to recover, and at the same time can avoid the occurrence of rectal fistula. A minimally invasive method is used to tighten the pelvic floor related muscles, reconstruct the perineal body structure, and improve the problems of pelvic floor dysfunction and vaginal relaxation.

[0049] Among them, the needle body 11 is bent upward clockwise or counterclockwise relative to the connecting rod 12 to form an arc shape. The puncture guide 1 of the embodiment of the present invention is divided into left-handed and right-handed, and the needle body 11 and the connecting rod 12 are set in an L shape. When the connecting rod 12 is set horizontally, in one case, the needle body 11 can be bent upward counterclockwise on its left side to form a left-handed puncture guide 1, and in another case, the needle body 11 can be bent upward clockwise on its right side to form a right-handed puncture guide 1. Therefore, two different puncture guides 1 can be formed, which can be used separately or simultaneously. Different puncture guides 1 are used according to different guiding requirements in different directions. The left side uses a left-handed puncture guide 1 for guidance, and the right side uses a right-handed puncture guide 1 for guidance.

[0050] The center angle of the needle body 11 is less than or equal to 180°. To ensure that it conforms to the human body structure and meets the surgical requirements, the center angle of the arc-shaped needle body 11 is designed to be less than or equal to 180°, which can reduce the space occupied by the needle body 11 and ensure a certain degree of curvature to reach the surgical target position, which is convenient for operation.

[0051] like Figure 2 As shown, in one embodiment, the central angle of the needle body 11 is equal to 180°. In this embodiment, the shape of the needle body 11 is a semicircular arc, the length of the needle body 11 is 47.1 mm, the diameter of the needle body 11 is 2 mm, the arc chord length where the guide body 112 is located is 35 mm, and the length of the connecting rod 12 is 45 mm. The length of the needle body 11 and the connecting rod 12 is similar to the anatomical structure of the human body, which is convenient for introducing the medical device materials used in the operation.

[0052] like Figure 3 , Figure 4 and Figure 6 As shown, the arc length of the guide body 112 is less than or equal to 56mm. In this embodiment, the shape of the guide body 112 is a 3 / 8 circle arc, the central angle is equal to 67.5°, the length a of the guide body 112 is 42mm, the diameter c of the needle body 11 is 2.5mm, the arc chord length b of the guide body 112 is 37mm, the length d of the connecting rod 12 is 45mm, and the length of the needle body 11 and the connecting rod 12 is similar to the human anatomical structure, which is convenient for introducing the medical device materials used in the operation. The needle body is cylindrical, which can reduce friction when entering the tissue, and the needle tip has the force of the puncture process and the confirmation of the puncture track.

[0053] Among them, Figure 5 As shown, the shape of the needle tip 111 is a flat cone, the distance e from the center of the hole 113 to the tip of the needle tip 111 is 4mm to 10mm, and the distance f from the edge of the hole 113 to the tip of the needle tip 111 is 3mm to 9mm. In this embodiment, the needle tip 111 is triangular flat or conical flat, and the flat cone shape is more conducive to the needle body 11 puncturing the target body and reducing the wound area of ​​the target body. The distance e from the center of the hole 113 to the tip of the needle tip 111 is selected to be 5mm, and the distance f from the edge of the hole 113 to the tip of the needle tip 111 is selected to be 4mm.

[0054] Among them, Figure 5As shown, the shape of the hole 113 is elliptical, the length g of the short axis is 0.8mm-1.6mm, and the length h of the long axis is 2mm-6mm. In this embodiment, the hole 113 on the needle tip 111 is elliptical, the length g of the short axis is selected to be 1.2mm, and the length h of the long axis is selected to be 2.3mm. The size of this elliptical hole is convenient for the passage of wires and surgical products, such as biological bands, and is conducive to the penetration and introduction of biological materials or components into tissues. The needle tip 111 is close to the surgical target location, and surgical operations can be performed there.

[0055] The needle body 11 and the connecting rod 12 are integrally formed. In this embodiment, the needle body 11 and the connecting rod 12 are integrally formed, and can be formed by bending a needle-shaped rod, which has a simple process and is easy to manufacture.

[0056] Among them, Figure 4 and Figure 7 As shown, the puncture guide device of the embodiment of the present invention also includes a handle portion 2, which is connected to the connecting rod 12. The handle portion 2 is constructed with at least one plane extending along the axial direction of the handle portion 2, and the plane is parallel to the direction of the chord length of the guide body 112. The length i of the handle portion 2 is 115 mm, the thickness j is 10 mm, and the width k is 15 mm. In this embodiment, the part entering the human body and the degree of rotation, number of circles, and depth of the surgical process can be better identified. The handle portion 2 is the hand-held part of the operator, and the length i of the handle portion 2 is 115 mm, which is convenient for holding tightly.

[0057] In this embodiment, two extended planes are formed on the handle portion 2 along its length direction, that is, the two sides between the two planes are arc surfaces, which are convenient for the operator to grasp with his hands. The plane is parallel to the chord length direction of the guide body 112. During the operation, the operator can rotate the handle portion 2 to drive the puncture guide portion 1 to enter the target body. At the same time, according to the inclination and rotation angle of the plane, the rotation angle of the needle tip 111 and the guide body 112 of the puncture guide portion in the target body is obtained, and according to the number of rotations of the plane of the handle portion 2, the number of rotations of the needle tip 111 and the guide body 112 in the target body can be obtained. In other embodiments, the number of planes can be selected according to actual needs, and a single surface can be selected, or symmetrical multiple surfaces can be selected.

[0058] Among them, Figure 7 As shown, the handle portion 2 is also configured with a groove 21 at a position close to the puncture guide portion 1. The groove 21 is located on a plane. The distance m between the groove 21 and the puncture guide portion 1 is 17 mm. The width n of the groove 21 is 9 mm. In this embodiment, the handle portion 2 is designed with two grooves 21. The two grooves 21 are respectively located on the upper and lower planes and close to the puncture guide portion 1. The arrangement of the grooves 21 is to facilitate the index finger and thumb to grip the operation during use, increase friction, and facilitate the force during operation.

[0059] The connecting rod 12 and the handle portion 2 are integrally formed. The needle body 11 and the handle portion 2 are integrally formed, which improves the structural strength of the device and simplifies the processing and manufacturing process. Because the connecting rod 12 and the handle portion 2 are integrally formed, in actual operation, the puncture guide device of the left-handed puncture guide portion 1 and the puncture guide device of the right-handed puncture guide portion 1 are two independent devices. In other embodiments, the connecting rod 12 and the handle portion 2 may be separate and independent, and a socket or a threaded hole may be provided on the handle portion 2, and the end of the connecting rod 12 is inserted or screwed in to connect with the handle portion 2.

[0060] The method for using the puncture guide device of the above embodiment for tightening the vaginal cavity provided by the embodiment of the present invention includes:

[0061] S1, entrance A and entrance B are opened at the junction of labia minora and mucosa outside the vaginal opening, and entrance A and entrance B are located on the same horizontal line;

[0062] S2, insert the puncture guide at the A entrance and puncture the biological band under the mucosa of the posterior vaginal wall to the contralateral B entrance;

[0063] S3, use the puncture guide device to puncture the biological band under the mucosa of the posterior vaginal wall at the entrance B to the opposite entrance A, pull the biological band up and tighten it at the entrance A, so that the posterior vaginal wall protrudes into the vaginal cavity to form folds, narrowing the vaginal cavity;

[0064] S4, the biological band is tightened to the predetermined tension and then sutured and fixed in the deep tissue.

[0065] If the relaxation is severe, you can apply the above method and puncture the posterior wall of the vagina back and forth three times. The entire vagina will tighten and increase wrinkles.

[0066] The application method of the puncture guide device of the above embodiment for narrowing the vaginal opening provided by the embodiment of the present invention comprises:

[0067] S1, use a puncture guide device to puncture the first puncture hole on the side wall of the vaginal opening on one side, and penetrate the submucosal layer of the lower half of the vaginal opening;

[0068] S2, introducing the first biological band into the submucosal layer below the vaginal opening, and the puncture guide device passes through the second puncture hole on the side wall of the other side of the vaginal opening;

[0069] S3, using another puncture guide device to puncture the second puncture hole on the side wall of the other vaginal opening, making another tunnel under the mucosa to the first puncture hole on the side wall of the vaginal opening, and introducing the second biological band through the tunnel under the mucosa; if necessary, multiple different tunnels can be formed and the biological bands can be introduced to increase the narrowing range and tension of the vaginal opening;

[0070] S4, tighten the first biological band and the second biological band, and fix and suture them under the mucosa to narrow the external opening of the vagina.

[0071] The application method of the puncture guide device of the above embodiment for repairing the superficial transverse perineum muscle provided by the embodiment of the present invention comprises:

[0072] S1, determine the location of the muscle end between the vaginal opening and the anus;

[0073] S2, the biological band is introduced into the body through the puncture guide device and passed through the opposite muscle stump;

[0074] S3, guide the traction biological band from the opposite side in the opposite direction and pass it out again;

[0075] S4, tighten the biological band and fix the superficial transverse perineal muscle to the perineal body.

[0076] Traditional surgical methods generally involve incising the posterior vaginal wall, separating the muscles, and tightening and suturing the relaxed bulbospongioma and vaginal sphincter. The damage is large and recovery is slow. Partial mucosal tissue removal of the posterior wall can easily lead to damage to the vaginal mucosal sensory nerves, further aggravating the possibility of sexual dysfunction. In addition, the rectum may be damaged during the separation and dissection of the posterior wall, causing rectovaginal fistula. The present invention uses a puncture guide device in combination with a biological band to tighten the posterior vaginal wall muscles without incision, reducing damage and avoiding the occurrence of rectal fistula.

[0077] The vaginal mucosa has very rich sensory nerve endings. The present invention can completely preserve the original vaginal mucosa. When the muscle layer is pulled together and sutured and the muscles are contracted, the vaginal mucosa is relatively increased, and the wrinkles are relatively increased. More friction can be generated during sexual intercourse, and the gripping strength is correspondingly increased, so that both men and women can easily reach orgasm and improve the quality of sexual life.

[0078] By tightening the lower part of the vaginal opening, the looseness of the vaginal opening can be effectively improved, forming a new vaginal opening that is loose and suitable for the new vaginal opening.

[0079] Through physical examination, the weakened fascia and surrounding torn muscles can be found, the integrity and tension of the muscle tissue can be restored, the muscle contraction force can be improved, and the normal perineum structure can be restored.

[0080] The application method of the puncture guide device of the present invention uses advanced biological materials, such as acellular allogeneic dermis. Acellular allogeneic dermis has no antigenicity, but maintains a good biological scaffold structure, which is convenient for the growth of autologous tissue cells and eventually becomes a part of the body, thereby achieving a lasting effect.

[0081] The sensitive point inside the vagina is located on the anterior wall of the vagina. The puncture guidance method of the present invention does not interfere with the anterior wall of the vagina during the operation, and effectively prevents the reduction of vaginal sensation after the operation.

[0082] Since the surgery strengthens the support of the pelvic floor, it has a certain improvement effect on mild tension urinary incontinence. The original anatomical structure is restored, the distance between the anus and the vagina is increased, the chance of vaginal contamination by the anus is reduced, and repeated urinary and reproductive system infections are reduced. The vaginal environment is improved and the lubrication of the vagina is increased. It effectively improves symptoms such as vaginal dryness and sexual intercourse pain caused by vaginal relaxation.

[0083] The following table shows clinical data comparing the traditional surgical method with the application method of the puncture guide device of the present invention:

[0084]

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A puncture guide device, characterized in that: It includes a puncture guide part, which includes a needle body and a connecting rod. The needle body is in the shape of an arc, and the needle body includes a needle tip and a guide body. One end of the guide body is connected to the connecting rod, and the other end is connected to the needle tip. A hole is provided on the needle tip, and the connecting rod is perpendicular to the plane where the needle body is located; the needle tip is in the shape of a flat cone; it also includes a handle part, which is connected to the connecting rod, and the handle part is constructed with at least one plane extending along the axial direction of the handle part, and the plane is parallel to the direction of the chord length of the guide body.

2. The puncture guide device according to claim 1, characterized in that: The needle body is bent upward clockwise or counterclockwise relative to the connecting rod to form an arc shape.

3. The puncture guide device according to claim 1, characterized in that: The arc length of the guide body is less than or equal to 56 mm.

4. The puncture guide device according to claim 1, characterized in that: The distance between the center of the hole and the tip of the needle tip is 4 mm to 10 mm, and the distance between the edge of the hole and the tip of the needle tip is 3 mm to 9 mm.

5. The puncture guide device according to claim 1, characterized in that: The hole is in an elliptical shape, with a short axis length of 0.8 mm to 1.6 mm and a long axis length of 2 mm to 6 mm.

6. The puncture guide device according to any one of claims 1 to 5, characterized in that: The handle has a length of 115 mm, a thickness of 10 mm, and a width of 15 mm.

7. The puncture guide device according to claim 6, characterized in that: The handle portion is further configured with a groove at a position close to the puncture guide portion. The groove is located on the plane, the distance between the groove and the puncture guide portion is 17 mm, and the width of the groove is 9 mm.

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