Medical needle assembly

Abstract

Provided in the present invention is a medical needle assembly, comprising: an outer tubular needle, which comprises an outer tubular needle body that is hollow inside through two ends and defines a first inner diameter and a first length; a puncture needle, which comprises a puncture needle body that defines a first outer diameter and a second length; and an inner tubular needle that is hollow inside through two ends and defines a second outer diameter and a third length, the first inner diameter being greater than the first outer diameter and the second outer diameter, and the first length being less than the second length and the third length. The medical needle assembly of the present invention is suitable for the suturing of a wound, and can achieve the effect of painless ligation of hernia opening.

Description

Medical needle assembly Technical Field

[0001] The present invention relates to a medical tool, and more particularly, to a medical needle assembly. Background Art

[0002] Suturing is a common medical procedure, and its main purpose includes restoring the original function of organs or tissues, removing foreign objects, or placing medical equipment. It can be imagined that the method or process of suturing usually directly affects the patient's recovery after surgery.

[0003] The suturing process usually requires the use of needles. For example, when a patient develops a wound on their body surface, the doctor uses the needle carrying the thread to thread it around the wound, further closing the wound. Common methods include using an arc needle as the needle, holding the arc needle with a needle holder, guiding the thread carried by the arc needle to thread around the wound, and forming a knot to close the wound. When a patient develops a perforation in their body, since most patients have the need for a small and painless wound, the doctor can adjust the medical method based on the above needs, including using appropriate medical needles and suturing methods that match the medical needles to achieve the goal of a small and painless wound and meet the patient's needs.

[0004] Summary of the Invention

[0005] To further improve the existing technology, the first object of the present invention is to provide a medical needle assembly, comprising: an outer needle, comprising: an outer needle body, the inner ends of which are mutually transparent and define a first inner diameter and a first length; a puncture needle, comprising: a puncture needle body, having two ends and defining a first outer diameter and a second length; and an inner needle, comprising: an inner needle body, the inner ends of which are mutually transparent and define a second outer diameter and a third length; wherein the first inner diameter is greater than the first outer diameter and the second outer diameter, and the first length is less than the second length and the third length, whereby the puncture needle body penetrates the outer needle body, and the inner needle body penetrates the outer needle body, comprising:

[0006] (A) inserting one end of the puncture needle into the outer needle body through the first opening, and allowing the one end of the puncture needle to contact the wound after exiting from the other end of the outer needle body, and then separating the puncture needle body and the outer needle body;

[0007] (B) inserting one end of the first suture into the inner needle body through the second opening, and after the one end of the first suture exits from the other end of the inner needle body, the one end of the first suture approaches the other end of the first suture that has not penetrated the inner needle body from the outside of the inner needle body, thereby forming a first inflection point near the outside of the other end of the inner needle body; and

[0008] (C) Maintaining the first inflection point, the other end of the inner needle body is passed through the first opening into the outer needle body, and then the first inflection point and the other end of the inner needle body are passed through the other end of the outer needle body. At this time, the other end of the first suture is pushed to form a first loop at the first inflection point.

[0009] In some preferred embodiments, the outer needle further includes: a first limiting portion disposed around the first opening; and a first needle tip portion disposed at the other end of the outer needle body.

[0010] In some preferred embodiments, the puncture needle further includes: a second needle tip portion provided at one end of the puncture needle body; and a first grip portion provided at the other end of the puncture needle body.

[0011] In some preferred embodiments, the inner tube needle further includes: a second gripping portion disposed around the second opening; and a third needle tip portion disposed at the other end of the inner tube needle body.

[0012] In some preferred embodiments, the first length is 4 to 10 centimeters, the second length is 5 to 11 centimeters, and the third length is 6.5 to 12.5 centimeters.

[0013] In some preferred embodiments, the first inner diameter is 2 to 5 mm, the first outer diameter is 1.5 to 4 mm, and the second outer diameter is 1.5 to 3.5 mm.

[0014] In some preferred embodiments, the first outer diameter is the same as or different from the second outer diameter.

[0015] In some preferred embodiments, the first limiting portion has a first transfer interface, which is arranged between the first limiting portion and the first opening, wherein the interior of the first transfer interface is a groove structure, the groove opening of the groove structure is opened at one end of the first limiting portion relatively away from the first opening, and the bottom of the groove structure is connected to the first opening.

[0016] In some preferred embodiments, the second grip portion has a second transfer interface, which is arranged between the second grip portion and the second opening, wherein the outside of the second transfer interface has a protruding structure, which extends toward the inner tube needle body, and the surface of the protruding structure has multiple grooves, which are parallel to the inner tube needle body.

[0017] In some preferred embodiments, the first adapter interface is complementary to the second adapter interface, wherein the plurality of grooves are for one end of the first suture to pass through between the inner needle body and the outer needle body; thereby, in step (C): the first inflection point is maintained, the other end of the inner needle body is passed through the outer needle body from the first opening, so that the first adapter interface and the second adapter interface are complementary to each other, and one end of the first suture is accommodated in any of the grooves, and then the first inflection point and the other end of the inner needle body are passed through the other end of the outer needle body. At this time, the other end of the first suture is pushed so that the first inflection point forms the first loop.

[0018] Another object of the present invention is to provide a method for painless hernia ligation, comprising:

[0019] Step (A1): Take the aforementioned medical needle assembly;

[0020] Step (A2): combining the puncture needle with the outer tube needle;

[0021] Step (A3): puncturing the patient's body surface with the puncture needle and the external needle, puncturing the first side of the hernia opening with the puncture needle, and leaving the external needle above the hernia opening;

[0022] Step (A4): attaching a first suture to the inner needle;

[0023] Step (A5): combining the first suture and the inner tube needle with the outer tube needle, and allowing one end of the first suture to reach below the first side of the hernia opening;

[0024] Step (A6): forming a first ring below the first side of the hernia;

[0025] Step (A7): removing the inner needle and reattaching it to the outer needle;

[0026] Step (A8): attaching a second suture to the inner needle and allowing one end of the second suture to reach below the second side of the hernia; and

[0027] Step (A9): combining the first suture and the second suture and performing ligation.

[0028] In summary, the medical needle assembly provided by the present invention is suitable for use in suturing wounds, including being suitable for performing the aforementioned hernia painless ligation method, wherein, in step (A3), since the outer tube needle is left in the hernia opening, repeated punctures are avoided and a wire feeding channel is formed, and, in step (A9), when ligation is performed, the knot formed by the first suture and the second suture outside the body surface can pass through the wire feeding channel, and the knot will not be tied into the nerve between the body surface and the hernia opening, thereby achieving the effect of painless hernia ligation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of a medical needle assembly;

[0030] Figure 2 is a schematic diagram of an outer tube needle;

[0031] Figure 3 is a schematic diagram of the first limiting portion;

[0032] Figure 4 is a schematic diagram of a puncture needle;

[0033] Figure 5 is a cross-sectional view of the first grip portion;

[0034] Figure 6 is a schematic diagram of an inner tube needle;

[0035] FIG7 is a schematic diagram of a second transfer interface;

[0036] Figure 8 is a schematic diagram of the combination of the puncture needle and the outer tube needle;

[0037] Figure 9 is a schematic diagram of the combination of the inner tube needle and the outer tube needle;

[0038] FIG10 is a first schematic diagram of a painless hernia ligation method;

[0039] FIG11 is a second schematic diagram of a painless hernia ligation method;

[0040] FIG12 is a third schematic diagram of a painless hernia ligation method;

[0041] FIG13 is a fourth schematic diagram of a painless hernia ligation method;

[0042] FIG14 is a fifth schematic diagram of a painless hernia ligation method;

[0043] FIG15 is a sixth schematic diagram of a painless hernia ligation method;

[0044] FIG16 is a seventh schematic diagram of a painless hernia ligation method;

[0045] FIG17 is an eighth schematic diagram of a painless hernia ligation method;

[0046] FIG18 is a first schematic diagram of a painless hernia mesh ligation method. DETAILED DESCRIPTION

[0047] Please refer to Figures 1, 2, 4, and 6. Figure 1 is a schematic diagram of a medical needle assembly 1, Figure 2 is a schematic diagram of an outer tube needle, Figure 4 is a schematic diagram of a puncture needle, and Figure 6 is a schematic diagram of an inner tube needle. In some preferred embodiments, a medical needle assembly 1 includes: an outer tube needle 10, including: an outer tube needle body 101, the inner ends of which are mutually transparent and define a first inner diameter (r1), a first length (L1) and a first opening 103, wherein the first opening 103 is provided at one end of the outer tube needle body 101; a puncture needle 20, including: a puncture needle body 201, having two ends and defining a first outer diameter (R 1) and a second length (L2); and an inner needle 30, comprising: an inner needle body 301, the inner ends of which are mutually transparent and define a second outer diameter (R2), a third length (L3) and a second opening 303, wherein the second opening 303 is provided at one end of the inner needle body 301; wherein the first inner diameter (r1) is greater than the first outer diameter (R1) and the second outer diameter (R2), the first length (L1) is less than the second length (L2) and the third length (L3), the puncture needle body 201 penetrates the outer needle body 101, and the inner needle body 301 penetrates the outer needle body 101; thereby:

[0048] (A) One end of the puncture needle 201 is inserted into the outer needle body 101 through the first opening 103, and one end of the puncture needle 201 is passed out from the other end of the outer needle body 101 and contacts the wound, and then the puncture needle 201 and the outer needle body 101 are separated;

[0049] (B) One end of the first suture S1 is passed through the second opening 303 into the inner needle body 301. After the first end of the first suture S1 passes through the other end of the inner needle body 301, the first end of the first suture S1 moves toward the outside of the inner needle body 301, where the first suture S1 forms a first inflection point C1 near the outside of the other end of the inner needle body 301.

[0050] (C) Maintaining the first inflection point C1, the other end of the inner needle body 301 is inserted into the outer needle body 101 through the first opening 103. Then, the first inflection point C1 and the other end of the inner needle body 301 are passed out of the other end of the outer needle body 101. At this time, the other end of the first suture S1 is pushed, so that the first inflection point C1 forms a first loop O1.

[0051] Please refer to FIG. 2 . In some preferred embodiments, the outer needle 10 further includes: a first limiting portion 104 disposed around the first opening 103 ; and a first needle tip 102 disposed at the other end of the outer needle body 101 .

[0052] In some preferred embodiments, the first limiting portion 104 is detachably disposed around the first opening 103 .

[0053] Referring to FIG. 2 , in some preferred embodiments, the first limiting portion 104 has a first transfer interface 1041 disposed between the first limiting portion 104 and the first opening 103 .

[0054] In some preferred embodiments, the interior of the first adapter interface 1041 is a groove structure, the notch of the groove structure is opened at an end of the first limiting portion 104 relatively far away from the first opening 103 , and the bottom of the groove structure is connected to the first opening 103 .

[0055] In some preferred embodiments, the first limiting portion 104 has a single-arm structure or a double-arm structure extending outward.

[0056] Please refer to FIG. 3 , which is a schematic diagram of the first limiting portion. In some preferred embodiments, the first limiting portion 104 has a single-arm structure extending outward and has the first transfer interface 1041 , which is in communication with the first opening 103 .

[0057] Please refer to FIG. 4 . In some preferred embodiments, the puncture needle 20 further includes: a second needle tip 202 disposed at one end of the puncture needle body 201 ; and a first gripping portion 203 disposed at the other end of the puncture needle body 201 .

[0058] Please refer to FIG. 4 . In some preferred embodiments, the first gripping portion 203 is not limited in shape. For example, the first gripping portion 203 may be a handle structure, a spherical structure, or a columnar structure.

[0059] In some preferred embodiments, the first gripping portion 203 is detachably disposed on one end of the puncture needle body 201 .

[0060] Please refer to FIG. 5 , which is a cross-sectional view of the first gripping portion. In some preferred embodiments, the first gripping portion 203 is a hollow spherical structure.

[0061] In some preferred embodiments, the outer periphery of the first gripping portion 203 is larger than the periphery of the first opening 103 , or the outer periphery of the first gripping portion 203 is larger than the first inner diameter ( r1 ).

[0062] In some preferred embodiments, the first gripping portion 203 is a handle structure, and the outer periphery of the first gripping portion 203 is larger than the circumference of the first opening 103 , or the outer periphery of the first gripping portion 203 is larger than the first inner diameter ( r1 ).

[0063] Please refer to FIG. 6 . In some preferred embodiments, the inner needle 30 further includes: a second gripping portion 304 disposed around the second opening 303 ; and a third needle tip portion 302 disposed at the other end of the inner needle body 301 .

[0064] Please refer to FIG. 6 . In some preferred embodiments, the second gripping portion 304 is not limited in shape. For example, the second gripping portion 304 may be a handle structure, a spherical structure, or a columnar structure.

[0065] In some preferred embodiments, the second gripping portion 304 is detachably disposed around the second opening 303 .

[0066] In some preferred embodiments, the second gripping portion 304 is a handle structure, and the outer periphery of the second gripping portion 304 is larger than the circumference of the first opening 103 , or the outer periphery of the second gripping portion 304 is larger than the first inner diameter ( r1 ).

[0067] Please refer to FIG. 7 , which is a schematic diagram of the second transfer interface. In some preferred embodiments, the second grip portion 304 has a second transfer interface 3041 , which is disposed between the second grip portion 304 and the second opening 303 .

[0068] In some preferred embodiments, the second adapter interface 3041 has a protruding structure on its exterior, which extends toward the inner needle body 301 . The surface of the protruding structure has a plurality of grooves, which are parallel to the inner needle body 301 .

[0069] In some preferred embodiments, the first adapter interface 1041 and the second adapter interface 3041 are stably combined, wherein the first adapter interface 1041 is a groove structure, and the second adapter interface 3041 is a protrusion structure, and they complement each other.

[0070] Please refer to Figures 2 and 7; in some preferred embodiments, when the inner needle body 301 penetrates the outer needle body 101, that is, when the second adapter interface 3041 contacts and combines with the first adapter interface 1041, the multiple grooves will be parallel to the outer needle body 101, so that the multiple grooves can each accommodate sutures, wherein the sutures include those passing through between the inner needle body 301 and the outer needle body 101.

[0071] In some preferred embodiments, the second gripping portion 304 has a single-arm structure or a double-arm structure extending outward.

[0072] Please refer to Figure 8, which is a schematic diagram of the combination of the puncture needle and the outer tube needle. In some preferred embodiments, the puncture needle 20 can penetrate the outer tube needle 10 from the first opening 103 via its second needle tip 202. Since the first inner diameter (r1) of the outer tube needle body 101 is greater than the first outer diameter (R1) of the puncture needle body 201, the puncture needle body 201 can penetrate the outer tube needle body 101. Moreover, since the first length L1 is less than the second length L2, the puncture needle body 201 or the second needle tip 202 can pass through the outer tube needle body 101, or at least the second needle tip 202 can pass through the outer tube needle body 101.

[0073] Please refer to Figure 9, which is a schematic diagram of the combination of the inner needle and the outer needle. In some preferred embodiments, the inner needle 30 can penetrate the outer needle 10 from the first opening 103 via its third needle tip 302. Since the first inner diameter (r1) of the outer needle body 101 is greater than the first outer diameter (R2) of the inner needle body 301, the inner needle body 301 can penetrate the outer needle body 101. Furthermore, since the first length L1 is less than the second length L2, the inner needle body 301 or the third needle tip 302 can pass through the outer needle body 101, or at least the third needle tip 302 can pass through the outer needle body 101.

[0074] Please refer to Figure 8. It can be understood that when the puncture needle 20 penetrates the outer tube needle 10 and the first opening 103 contacts the first gripping portion 203, the puncture needle body 201 no longer moves toward the second needle tip portion 202 because the outer periphery of the first gripping portion 203 is larger than the inner diameter of the first opening 103, or because the outer periphery of the first gripping portion 203 is larger than the first inner diameter (r1).

[0075] In some preferred embodiments, when the puncture needle 20 penetrates the outer tube needle 10 and the first opening 103 contacts the first gripping portion 203 , the first opening 103 and the first gripping portion 203 are tightly fitted, or the first limiting portion 104 and the first gripping portion 203 are tightly fitted.

[0076] Please refer to Figure 9. Similarly, when the inner needle 30 penetrates the outer needle 10 and the first opening 103 contacts the second gripping portion 304, the inner needle body 301 no longer moves toward the third needle tip 302 because the outer periphery of the second gripping portion 304 is larger than the inner diameter of the first opening 103, or because the outer periphery of the second gripping portion 304 is larger than the first inner diameter (r1).

[0077] In some preferred embodiments, when the inner needle 30 penetrates the outer needle 10 and the first opening 103 contacts the second gripping portion 304 , the first opening 103 and the second gripping portion 304 are tightly fitted, or the first limiting portion 104 and the second gripping portion 304 are tightly fitted.

[0078] In some preferred embodiments, the first length (L1) is 4 to 10 centimeters, the second length (L2) is 5 to 11 centimeters, and the third length (L3) is 6.5 to 12.5 centimeters.

[0079] In some preferred embodiments, in the first specification, the first length (L1) is 4 centimeters, the second length (L2) is 5 centimeters, and the third length (L3) is 6.5 centimeters.

[0080] In some preferred embodiments, in the second specification, the first length (L1) is 7 centimeters, the second length (L2) is 8 centimeters, and the third length (L3) is 9.5 centimeters.

[0081] In some preferred embodiments, in the third specification, the first length (L1) is 10 centimeters, the second length (L2) is 11 centimeters, and the third length (L3) is 12.5 centimeters.

[0082] In some preferred embodiments, the second length (L2) is the same as or different from the third length (L3), without limitation.

[0083] In some preferred embodiments, it can be understood that, under the condition that the first length (L1) is smaller than the second length (L2) and the third length (L3), the first length (L1), the second length (L2), or the third length (L3) is not limited and can be adjusted according to the application scenario. For example, when the medical needle assembly 1 is applied to abdominal-related surgery and the thickness of the abdominal fat layer is different, the first specification, the second specification or the third specification can be selected.

[0084] In some preferred embodiments, the first inner diameter (r1) is 2 to 5 mm.

[0085] In some preferred embodiments, specifically, the first inner diameter (r1) is 2.5 or 3.5 mm.

[0086] In some preferred embodiments, the first outer diameter (R1) is 1.5 to 4 mm.

[0087] In some preferred embodiments, specifically, the first outer diameter (R1) is 3 mm.

[0088] In some preferred embodiments, the second outer diameter (R2) is 1.5 to 3.5 mm.

[0089] In some preferred embodiments, specifically, the second outer diameter (R2) is 2.36 mm.

[0090] In some preferred embodiments, the first outer diameter (R1) is the same as or different from the second outer diameter (R2).

[0091] In some preferred embodiments, it can be understood that, under the condition that the first inner diameter (r1) is greater than the first outer diameter (R1) and the second outer diameter (R2), the first inner diameter (r1), the first outer diameter (R1), and the second outer diameter (R2) are not limited and can be adjusted according to the application scenario; for example, when the first outer diameter (R1) or the second outer diameter (R2) is closer to the first inner diameter (r1), when the puncture needle body 201 or the inner tube needle body 301 penetrates into the outer tube needle body 101, the sliding degree of the puncture needle body 201 relative to the outer tube needle body 101 will decrease, or the sliding degree of the inner tube needle body 301 relative to the outer tube needle body 101 will decrease.

[0092] In some preferred embodiments, it can be further understood that the difference between the first inner diameter (r1) and the second outer diameter (R2) should be at least the thickness of two sutures, wherein the thickness of the suture is not limited and depends on the difference between the first inner diameter (r1) and the second outer diameter (R2).

[0093] In some preferred embodiments, the outer tube needle 10, the puncture needle 20, or the inner tube needle 30 can be made of a material that can withstand sterilization and can be reused in use; it can also be understood that the outer tube needle 10, the puncture needle 20, or the inner tube needle can be made of a material that cannot withstand sterilization and can be used once in use.

[0094] In some preferred embodiments, the outer needle 10, the puncture needle 20, or the inner needle 30 is made of a medical plastic material, which includes: polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE), polyetheretherketone (PEEK), polystyrene (PS), polycarbonate (PC), polytetrafluoroethene (PTFE), or acrylonitrile butadiene styrene copolymer (ABS).

[0095] In some preferred embodiments, the outer needle 10 , the puncture needle 20 , or the inner needle 30 is made of a medical alloy material, which includes chromium-iron alloy, titanium alloy, or nickel-cobalt alloy.

[0096] The following provides a first embodiment of the present invention, including using the aforementioned medical needle assembly 1 to implement a painless hernia ligation method (A).

[0097] The terms "above" and "below" mentioned herein are used to describe the relative relationship between the body surface 20 and the hernia opening 231; that is, the body surface 20 refers to the patient's body surface, wherein "above" the body surface 20 refers to the outside of the patient's body, or the location of the surgeon or physician, and "below" the body surface 20 refers to the inside of the patient's body, or the location direction of the hernia opening 231.

[0098] It is further understood that “below” the patient's body surface 20 includes, in order, the epidermis 21 , the fascia 22 , the peritoneum 23 , and a nerve layer between the epidermis 21 and the peritoneum 23 ; wherein the hernia opening 231 is located in the peritoneum 23 .

[0099] It should be understood that the first side 2311 of the hernia opening is located on the opposite side of the second side 2312 of the hernia opening, that is, they are formed in the hernia opening 231 opposite to each other.

[0100] Please refer to Figures 10 to 17, which are schematic diagrams of hernia painless ligation methods. In some preferred embodiments, a hernia painless ligation method (A) includes:

[0101] Step (A1): Take the aforementioned medical needle assembly 1;

[0102] Please refer to FIG. 10 , step ( A2 ): combining the puncture needle 20 with the outer needle 10 : inserting the second needle tip 202 through the first opening 103 and exiting through the first needle tip 102 .

[0103] Please refer to Figure 11, step (A3): the outer tube needle 10 is placed in the projection of the hernia opening 231 corresponding to the body surface 20: at the projection of the hernia opening 231 corresponding to the body surface 20, the first gripping portion 203 is used to insert the puncture needle 20 and the outer tube needle 10 from above the body surface 20 to below the body surface 20 until the second needle tip 202 penetrates the first side 2311 of the hernia opening and reaches below the first side 2311 of the hernia opening. At this time, the puncture needle 20 is removed from the first opening 103, and the outer tube needle 10 is left in place, with the first needle tip 102 located at the first side 2311 of the hernia opening.

[0104] Please refer to Figure 12, step (A4): combining the first suture S1 to the inner tube needle 30: make the first suture S1 pass through the second opening 303 and pass through the third needle tip 302, wherein the portion of the first suture S1 passing through the third needle tip 302 is defined as a first line segment S11, and the portion of the first suture S1 not passing through the inner tube needle body 301 is defined as a second line segment S12, and the first line segment S11 is moved closer to the second line segment S12, so that the first line segment S11 forms a first inflection point C1 outside the third needle tip 302.

[0105] Please refer to Figure 13, step (A5): the first suture S1 and the inner tube needle 30 are combined with the outer tube needle 10: in the case of having the first inflection point C1, the third needle tip 302 is passed through the first opening 103 and passed out from the first needle tip 102. At this time, the third needle tip 302 passes through the first side 2311 of the hernia, and the first inflection point C1 reaches below the first side 2311 of the hernia. Here, the first line segment S11 can be further defined as follows: one is a first internal segment S111, which passes out from the third needle tip 302 and passes through the first needle tip 102, and the other is a first external segment S11 2, it passes through between the first limiting portion 104 and the second gripping portion 304, or passes through between the first opening 103 and the second gripping portion 304, and it can be understood that the first external segment S112 is tightly combined with the outer tube needle 10 and the inner tube needle 30, that is, when the first limiting portion 104 and the second gripping portion 304 are in contact and close contact, or when the first opening 103 and the second gripping portion 304 are in contact and close contact, the length of the first external segment S112 is controlled by compression. At this time, when the second line segment S2 is pushed, the length of the first internal segment S111 will increase, and the length of the first external segment S112 will not increase.

[0106] Please refer to Figure 14, step (A6): forming a first loop O1 below the first side 2311 of the hernia: maintaining the contact and tight fit between the first limiting portion 104 and the second gripping portion 304, or the contact and tight fit between the first opening 103 and the second gripping portion 304, pushing the second line segment S12 to increase the length of the first internal segment S111 and form the first loop O1 below the first side 2311 of the hernia.

[0107] Please refer to Figure 15, step (A7): the inner needle 30 is removed and reconnected to the outer needle 10: the inner needle 30 is pulled out from the first opening 103, and the first loop O1 is left below the first side 2311 of the hernia opening, and the inner needle 30 is reconnected to the outer needle 10, that is, the third needle tip 302 is inserted through the first opening 103 and out of the first needle tip 102; here, the second line segment S12 and the first external segment S112 are jointly passed through between the first limiting portion 104 and the second gripping portion 304, and the first loop O1 is passed through or formed on the first needle tip 102.

[0108] Please refer to Figure 16, step (A8): the second suture S2 is coupled to the inner needle 30 and reaches below the second side 2312 of the hernia opening: the third needle tip 302 and the first needle tip 102 are moved together to above the second side 2312 of the hernia opening, and the second suture S2 is coupled to the inner needle 30. In the coupled state, the third needle tip 302 is inserted from above the second side 2312 of the hernia opening so that the third needle tip 302 reaches below the second side 2312 of the hernia opening. The second suture S2 is then pushed so that it passes through the second opening 303 and exits from the third needle tip 302. The portion of the second suture S2 that passes through the third needle tip 302 is defined as a third line segment S21, and the portion of the second suture S2 that does not pass through the second opening 303 is defined as a fourth line segment S22. Here, the third line segment S21 has reached below the second side 2312 of the hernia opening.

[0109] Please refer to Figure 17, step (A9): ligation: Below the hernia opening 231, the third line segment S21 is passed through the first loop O1, and the third line segment S21 and the first loop O1 are kept relative to each other. The inner needle 30 is first removed, and then the outer needle 10 is removed. The second line segment S12 and the first external segment S112 are pulled upward so that the third line segment S21 is constrained by the first loop O1. The fourth line segment S22, the second line segment S12, and the first external segment S112 are then formed into a first line knot S3 above the body surface 20. The first line knot S3 is then sent below the body surface 20 to the hernia opening 231 to close the hernia opening 231.

[0110] 17 , it can be understood from the above method that the first wire feeding channel P1 formed between the body surface 20 and the hernia opening 231 by the outer needle 10 allows the first wire knot S3 to be smoothly fed into and seal the hernia opening 231 through the first wire feeding channel P1 .

[0111] It can be further understood that the outer tube needle 10 establishes the above-mentioned first wire feeding channel P1 at one time in step (A3). The first wire feeding channel P1 passes through the fascia layer 22 and the nerve layer. Therefore, in step (A9), when the first knot S3 closes the hernia opening 231, the first knot S3 will not be formed on the fascia layer 22, and the first knot S3 can avoid the nerve layer to achieve a painless effect.

[0112] In step (A8), the outer tube needle 10 is based on the inherent relative mobility between the epidermal layer 21, the fascia layer 22, and the peritoneal layer to move the third needle tip 302 and the first needle tip 102 to above the second side 2312 of the hernia opening, so that no further puncture of the epidermal layer 21 or the fascia layer 22 is performed. That is, the outer tube needle 10 establishes the above-mentioned first wire feeding channel P1 once in step (A3) and does not establish another wire feeding channel.

[0113] Please refer to FIG. 11 . It can also be understood that in step (A3), the first gripping portion 203 of the puncture needle 20 provides a force application point for the operator or physician to perform the puncture.

[0114] Please refer to Figure 11. It can also be understood that in step (A3), the side of the first limiting portion 104 relatively away from the first gripping portion 203 can contact the body surface 20 to prevent the first opening 103 from being buried in or excessively penetrating into the cortex 21, making subsequent operation of the outer tube needle 10 difficult.

[0115] The second embodiment of the present invention is provided below, including using the aforementioned medical needle assembly 1 to implement a hernia mesh painless ligation method (B).

[0116] The "above" or "below" mentioned here are relative adjectives according to the general operation process, that is, the doctor performs surgery on the patient from the "above" to the "below".

[0117] The body surface 20 mentioned herein refers to the patient's body surface, wherein "above" the body surface 20 refers to where the operator or physician is located, and "below" the body surface 20 refers to inside the patient's body.

[0118] It should be understood that “below” the patient's body surface 20 includes, in order, the epidermis 21 , the fascia 22 , the peritoneum 23 , and a nerve layer between the epidermis 21 and the peritoneum 23 ; wherein the hernia opening 231 is located in the peritoneum 23 .

[0119] It should be understood that the first side 2311 of the hernia opening is located on the opposite side of the second side 2312 of the hernia opening, that is, they are formed in the hernia opening 231 opposite to each other.

[0120] A method (B) for painless hernia mesh ligation, comprising steps (B0), (B1), and (B2):

[0121] Step (B0): Move the mesh M close to the top or bottom of the hernia 231 and maintain the distance of the mesh M relative to the hernia 231, wherein it is confirmed that when the mesh M is in close contact with the hernia 231, it can simultaneously cover the first side 2311 and the second side 2312 of the hernia, and define the first side of the mesh M as being relatively configured to the first side 2311 of the hernia, and define the second side of the mesh M as being relatively configured to the second side 2312 of the hernia.

[0122] Step (B1): forming a first knot S3 on the first side 2311 of the hernia to fix the first side of the mesh M to the first side 2311 of the hernia: Step (B1) includes steps (B11) to (B19):

[0123] Step (B11): Take the aforementioned medical needle assembly 1;

[0124] Step (B12): Combining the puncture needle 20 with the outer tube needle 10: inserting the second needle tip 202 through the first opening 103 and exiting from the first needle tip 102.

[0125] Step (B13): Leave the outer tube needle 10 in the hernia opening 231 at the projection corresponding to the body surface 20: At the projection corresponding to the body surface 20 of the hernia opening 231, insert the puncture needle 20 and the outer tube needle 10 from above the body surface 20 to below the body surface 20 until the second needle tip 202 penetrates the first side 2311 of the hernia opening and reaches below the first side 2311 of the hernia opening, while passing through the first side of the mesh M. At this time, remove the puncture needle 20 from the first opening 103, leave the outer tube needle 10 in place, and the first needle tip 102 is located at the first side 2311 of the hernia opening.

[0126] Step (B14): Connect the first suture S1 to the inner needle body 30: Make the first suture S1 pass through the second opening 303 and pass through the third needle tip portion 302, wherein the portion of the first suture S1 passing through the third needle tip portion 302 is defined as the first line segment S11, and the portion of the first suture S1 not passing through the inner needle body 301 is defined as the second line segment S12, and move the first line segment S11 toward the second line segment S12 so that the first line segment S11 forms a first inflection point C1 outside the third needle tip portion 302.

[0127] Step (B15): The first suture S1 and the inner needle 30 are connected to the outer needle 10. With the first inflection point C1, the third needle tip 302 is passed through the first opening 103 and out of the first needle tip 102. At this time, the third needle tip 302 passes through the first side 2311 of the hernia and the first side of the mesh M, and the first inflection point C1 reaches the first side 2311 of the hernia and the first side of the mesh M. At this point, the first line segment S 11 is further defined as follows: one is the first internal segment S111, which passes through the third needle tip 302 and passes through the first needle tip 102, and the first external segment S112, which passes through between the first limiting portion 104 and the second gripping portion 304, or passes through between the first opening 103 and the second gripping portion 304. It can be understood that the first external segment S112 is tightly combined with the outer tube needle 10 and the inner tube needle 30, that is, when the first limiting portion 104 and the second gripping portion 304 are in contact and sealed, or when the first opening 103 and the second gripping portion 304 are in contact and sealed, the length of the first external segment S112 is controlled by pressure. At this time, when the second line segment S2 is pushed, the length of the first internal segment S111 will increase, and the length of the first external segment S112 will not increase.

[0128] Step (B16): Forming a first loop O1 below the first side 2311 of the hernia: Maintaining the contact and tight fit between the first limiting portion 104 and the second gripping portion 304, or the contact and tight fit between the first opening 103 and the second gripping portion 304, push the second line segment S12 to increase the length of the first inner segment S111 and form the first loop O1 below the first side 2311 of the hernia and the first side of the mesh M.

[0129] Step (B17): Remove the inner needle 30 and reconnect it to the outer needle 10: Pull out the inner needle 30 from the first opening 103, and leave the first loop O1 below the first side 2311 of the hernia opening and the first side of the mesh M. Reconnect the inner needle 30 to the outer needle 10 so that the third needle tip 302 passes through the first needle tip 102; here, the second line segment S12 and the first external segment S112 jointly pass through between the first limiting portion 104 and the second gripping portion 304, and the first loop O1 passes through or is formed on the first needle tip 102.

[0130] Step (B18): The second suture S2 is connected to the inner needle 30 and reaches the first side 2311 of the hernia opening and the lower side of the first side of the mesh M: The second suture S2 is connected to the inner needle 30, and in the connected state, the third needle tip 302 is inserted from the first side 2311 of the hernia opening and the upper side of the first side of the mesh M, so that the third needle tip 302 reaches the first side 2311 of the hernia opening and the lower side of the first side of the mesh M, and then the second suture S2 is pushed out from the second opening. 303 penetrates into and comes out from the third needle tip portion 302, wherein the portion of the second suture S2 that passes through the third needle tip portion 302 is defined as a third line segment S21, and the portion of the second suture S2 that does not penetrate into the second opening 303 is defined as a fourth line segment S22, wherein the third line segment S21 has reached the first side 2311 of the hernia opening and the bottom of the first side of the mesh M, and the third line segment S21 is located together with the first loop O1 on the first side 2311 of the hernia opening and the bottom of the first side of the mesh M.

[0131] Step (B19): First ligation: Pass the third line segment S21 through the first loop O1 below the first side 2311 of the hernia opening and the first side of the mesh M, maintain the relative state of the third line segment S21 and the first loop O1, first remove the inner tube needle 30, then remove the outer tube needle 10, pull the second line segment S12 and the first external segment S112 upward so that the third line segment S21 is constrained by the first loop O1, and then make a first line knot S3 with the fourth line segment S22, the second line segment S12 and the first external segment S112 above the body surface 20, and send the first line knot S3 below the body surface 20 to the first side 2311 of the hernia opening to fix the first side of the mesh M to the first side 2311 of the hernia opening.

[0132] Step (B2): Forming a second knot S4 on the first side 2311 of the hernia to fix the second side of the mesh M to the second side 2312 of the hernia: Step (B2) includes steps (B11) to (B19), wherein the first side 2311 of the hernia is replaced with the second side 2312 of the hernia, and the first side of the mesh M is replaced with the second side of the mesh M to fix the second side of the mesh M to the second side 2312 of the hernia.

[0133] Please refer to Figure 18, which is a first schematic diagram of the painless hernia mesh ligation method; as shown in Figure 18, step (B1) is to form the first knot S3 on the first side 2311 of the hernia, and step (B2) is to form the second knot S4 on the second side 2312 of the hernia, wherein the first knot S3 fixes the first side of the mesh M to the first side 2311 of the hernia, and the second knot S4 fixes the second side of the mesh M to the second side 2312 of the hernia.

[0134] It is further understood that there may be a step (B3) of forming a third knot on either side of the hernia opening, which is not limiting.

[0135] It is further understood that through steps (B1) and (B2), the hernia opening 231 can be sealed by the mesh M to achieve the desired effect.

[0136] To further understand, for example, the outer tube needle 10 establishes the above-mentioned first wire feeding channel P1 at one time in step (B13), and the first wire feeding channel P1 passes through the fascia layer 22 and the nerve layer. Therefore, in step (B19), when the first side of the mesh M is fixed to the first side 2311 of the hernia, the first knot S3 will not be formed on the fascia layer 22, and the first knot S3 can avoid the nerve layer to achieve a painless effect.

[0137] It is further understood that the mesh M can actually be replaced by any similar material or component for the purpose of fixing, covering, protecting, or supporting, such as a steel plate.

[0138] It should be further understood that the number of wire feeding channels is not actually limited. In order to reduce the number of wire feeding channels and thus reduce the number of times the body surface 20 is punctured by the outer tube needle 10, the outer tube needle 10 can be selected to puncture any point of the internal wound or defect on the body surface 20; for example, the outer tube needle 10 can be selected to puncture the center point of the hernia 231 on the body surface 20, so as to simultaneously perform the operation of fixing the mesh M on the first side 2311 and the second side 2312 of the hernia.

[0139] The third embodiment of the present invention is provided below.

[0140] A wound suturing method (C) includes the aforementioned painless hernia ligation method (A), wherein, in step (A3), the hernia opening 231 is replaced by an arbitrary wound, which is located on the body surface 20 or inside the body, without limitation.

[0141] It can be understood from the above-mentioned wound suturing method (C) that, based on the controllability of the puncture depth of the medical needle assembly 1, the medical needle assembly 1 can be used to suture wounds in the body, such as the hernia 231. At the same time, the medical needle assembly 1 can be used to suture wounds on the body surface 20.

[0142] It is further understood that the tissue to which the arbitrary wound belongs is not limited, and includes hard tissue or soft tissue, and may include connective tissue, mucosal tissue, muscle tissue, fat tissue or bone tissue.

[0143] It is further understood that the types of wounds include tear or defect, and are not limited to having a relatively open opening.

[0144] The above description provides some preferred embodiments, which are only for the purpose of illustrating the technical solution of the present invention, and cannot be used to limit the scope of patent protection of the present invention. In other words, any simple changes made based on the technical content of the present invention should still fall within the scope of patent protection of the present invention.

[0145]

Explanation of symbols

[0146] 1: Medical needle assembly

[0147] 10: External needle

[0148] 101: outer tube needle body

[0149] 102: first needle tip

[0150] 103: First Opening

[0151] 104: First limit part

[0152] 1041: First transfer interface

[0153] r1: first inner diameter

[0154] L1: first length

[0155] 20: puncture needle

[0156] 201: puncture needle body

[0157] 202: second needle tip

[0158] 203 first grip

[0159] R1: first outer diameter

[0160] L2: Second length

[0161] 30: Inner needle

[0162] 301: Inner tube needle body

[0163] 302: third needle tip

[0164] 303: Second opening

[0165] 304: Second grip

[0166] 3041: Second transfer interface

[0167] R2: Second outer diameter

[0168] L3: The third length

[0169] C1: first inflection point

[0170] O1: First set of rings

[0171] P1: The first wire feeding channel

[0172] P2: The second wire feeding channel

[0173] S1: First suture

[0174] S11: First line segment

[0175] S111: First internal segment

[0176] S112: First external segment

[0177] S12: Second line segment

[0178] S2: Second suture

[0179] S21: The third line segment

[0180] S22: The fourth line segment

[0181] S3: First line knot

[0182] S4: Second line knot

[0183] M: Mesh

[0184] 20: Body surface

[0185] 21: Epidermis

[0186] 22: Fascia layer

[0187] 23: peritoneum

[0188] 231: Hernia

[0189] 2311: The first side of the hernia

[0190] 2312: The second side of the hernia

Claims

1. A medical needle assembly, characterized in that: include: External needle, including: The outer tube needle body has two ends that are mutually transparent and defines a first inner diameter, a first length and a first opening, wherein the first opening is provided at one end of the outer tube needle body; Acupuncture needles, including: A puncture needle body having two ends and defining a first outer diameter and a second length; and Inner needle, including: The inner tube needle body has two ends that are mutually transparent and define a second outer diameter, a third length and a second opening, wherein the second opening is provided at one end of the inner tube needle body; The first inner diameter is larger than the first outer diameter and the second outer diameter, and the first length is smaller than the second length and the third length; By this: (A) inserting one end of the puncture needle body into the outer tube needle body through the first opening, then inserting one end of the puncture needle body out from the other end of the outer tube needle body, and then separating the puncture needle body and the outer tube needle body; (B) inserting one end of the first suture into the inner tube needle body through the second opening, and after the one end of the first suture passes out from the other end of the inner tube needle body, the one end of the first suture approaches the other end of the first suture that has not penetrated into the inner tube needle body from the outside of the inner tube needle body, and at this time, the first suture forms a first inflection point near the outside of the other end of the inner tube needle body; and (C) Maintaining the first inflection point, the other end of the inner needle body is inserted into the outer needle body through the first opening, and then the first inflection point and the other end of the inner needle body are inserted out of the other end of the outer needle body. At this time, the other end of the first suture is pushed to form the first inflection point into a first loop.

2. The medical needle assembly according to claim 1, wherein: The outer needle further comprises: A first limiting portion, disposed around the first opening; and The first needle tip is arranged at the other end of the outer tube needle body.

3. The medical needle assembly according to claim 1, characterized in that: The puncture needle also includes: A second needle tip portion is provided at one end of the puncture needle body; and The first gripping portion is arranged at the other end of the puncture needle body.

4. The medical needle assembly according to claim 1, characterized in that: The inner needle further comprises: A second grip portion disposed around the second opening; and The third needle tip is arranged at the other end of the inner tube needle body.

5. The medical needle assembly according to claim 1, characterized in that: The first length is 4 to 10 centimeters, the second length is 5 to 11 centimeters, and the third length is 6.5 to 12.5 centimeters.

6. The medical needle assembly according to claim 1, characterized in that: The first length is 7 centimeters, the second length is 8 centimeters, and the third length is 9.5 centimeters.

7. The medical needle assembly according to claim 1, characterized in that: The first inner diameter is 2 to 5 mm, the first outer diameter is 1.5 to 4 mm, and the second outer diameter is 1.5 to 3.5 mm.

8. The medical needle assembly according to claim 2, characterized in that: The first limiting portion has a first transfer interface, which is arranged between the first limiting portion and the first opening, wherein the interior of the first transfer interface is a groove structure, the groove opening of the groove structure is opened at one end of the first limiting portion relatively away from the first opening, and the groove bottom of the groove structure is connected to the first opening.

9. The medical needle assembly according to claim 4, characterized in that: The second gripping portion has a second adapter interface, which is arranged between the second gripping portion and the second opening, wherein the outside of the second adapter interface has a protruding structure, which extends toward the inner tube needle body, and the surface of the protruding structure has a plurality of grooves, which are parallel to the inner tube needle body.

10. The medical needle assembly according to claim 8 or 9, characterized in that: The first adapter interface is complementary to the second adapter interface, wherein the plurality of grooves are used to accommodate one end of the first suture; Thus, in step (C): Maintaining the first inflection point, the other end of the inner needle body is inserted into the outer needle body through the first opening, so that the first adapter interface and the second adapter interface are complementary to each other, and one end of the first suture is accommodated in any of the grooves, and then the first inflection point and the other end of the inner needle body are passed through the other end of the outer needle body. At this time, the other end of the first suture is pushed to form the first inflection point into the first loop.

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