A puncture suture device

Abstract

The present invention discloses a puncture suture device, including a puncture needle and a cannula, wherein the puncture needle is slidably inserted into the cannula, and two channels are symmetrically arranged on the side wall of the cannula along its axis; two lugs are symmetrically arranged along the axis on the upper end of the cannula, and guide parts are respectively arranged on the two lugs, and two push rods are slidably connected to the guide parts, and one end of each push rod is provided with an insertion hole, and a suture needle is slidably arranged in the insertion hole, and the needle eyes of the two suture needles are connected together by a suture thread; the suture thread is tightened or loosened away from the two ends of the suture needle so that the suture needle is positioned in the insertion hole or detached from the insertion hole, and when the push rod slides downward along the guide part for a preset distance, one end of the push rod connected to the suture needle passes through the channel and extends into the inner cavity of the cannula. The puncture suture device disclosed by the present invention, in addition to having a conventional puncture function, can also play a suturing function, realize accurate and effective suturing of the puncture wound, and is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a puncture suturing device. Background Art

[0002] Trocars are widely used in abdominal examinations, abdominal surgeries and other minimally invasive or surgical operations. Trocars can establish an access channel in the abdominal wall of the human body so that a laparoscope or other surgical instruments such as laparoscopic operating instruments, guide wires, catheters, etc. can enter the abdominal cavity for corresponding examinations or surgical operations.

[0003] The overall structure of the puncture device includes a puncture cannula and a puncture cone inserted in the cannula. The clinical use of the puncture device is as follows: a small incision is made on the patient's abdomen, and the doctor holds the end of the puncture cone and applies puncture operation force, so that the puncture cone drives the cannula into the abdominal cavity, and then pulls out the puncture cone, and a channel is formed inside the cannula for surgical instruments to enter and exit the abdominal cavity. After the operation is completed, the puncture device is pulled out, and the peritoneum, muscle layer tissue, fascia, etc. and the skin are sutured with a suture needle.

[0004] The cannula puncture devices currently used in clinical practice generally only have the function of establishing instrument surgical channels, and cannot simultaneously assist in the suturing of key abdominal wall tissues. At present, since the surgical incision is very small, generally only about 5-12 mm, it is difficult to sew the abdominal wall tissue after the operation, especially for obese patients, whose abdominal wall tissue is thick and cannot meet the requirements of accurate and effective suturing of the puncture incision, resulting in the inability of the abdominal fascia to heal accurately, thus leading to poor local tissue healing and corresponding complications such as rupture, bleeding, infection, hernia, etc.; further surgery and other treatments are required in the future, which brings additional physical, mental and economic burdens to patients. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a puncture suturing device which, in addition to having a conventional puncture function, can also play a suturing function, thereby achieving accurate and effective suturing of the puncture wound and being easy to operate.

[0006] The technical solution adopted by the present invention is: to provide a puncture suturing device, including a puncture needle and a sleeve, the puncture needle is slidably inserted into the sleeve, and two channels are symmetrically arranged on the side wall of the sleeve along its axis; two lugs are symmetrically arranged along the axis at the upper end of the sleeve, and guide parts are respectively arranged on the two lugs, and two push rods are slidably connected to the guide parts, and one end of each of the push rods is provided with an insertion hole, a suture needle is slidably arranged in the insertion hole, and the needle eyes of the two suture needles are connected together by a suture thread; the suture thread is tightened or loosened away from the two ends of the suture needle so that the suture needle is positioned in the insertion hole or detached from the insertion hole, and when the push rod slides downward along the guide part for a preset distance, one end of the push rod connected to the suture needle passes through the channel and extends into the inner cavity of the sleeve.

[0007] Compared with the prior art, the present invention has the following advantages:

[0008] In the puncture suturing device structure of the present invention, the existing sleeve structure of the puncture device is utilized, an existing channel is opened on the side wall of the sleeve, and two lugs are provided on the side wall of the sleeve, push rods are slidably provided on the two lugs, and a suture needle with a suture thread is also provided at one end of the push rod. More importantly, the two suture needles in the structure are connected by a suture thread, that is, the two suture needles are respectively connected and fixed to the two ends of the suture thread, so that when suturing, the two suture needles are respectively pushed by the corresponding push rods to pass through the abdominal wall tissue to be sutured, and then pass through the channel into the inner cavity of the sleeve; in this structure, a guide portion is also provided on the lug, and when the push rod slides along the guide portion, the end of the push rod connected to the suture needle can just pass through the channel into the inner cavity of the sleeve. The suture needle is then pulled out of the sleeve and the two ends of the suture thread are then pulled out of the sleeve, and the two ends of the suture thread are then pulled out of the sleeve, and the two ends of the suture thread are then pulled out of the sleeve, and the two ends of the suture thread are then pulled out of the sleeve, and the two ends of the suture thread are finally tied and fixed, and the entire suturing process can be completed by cutting off the two suture needles. The operation is convenient, and the wound suturing is accurate, efficient and reliable.

[0009] As an improvement, the lug is provided with a guide slideway inclined from outside to inside along the radial direction of the sleeve, and the push rod can be slidably inserted into the guide slideway. This improved structure makes the sliding of the push rod have better guidance and stability; it makes the suturing of the wound smoother and more efficient, and the suturing position more accurate.

[0010] In a further improvement, an insertion hole is provided at one end of the push rod near the channel, and the tail end of the suture needle can be slidably inserted and fitted in the insertion hole; the end of the suture thread away from the suture needle is tightened to position the suture needle in the insertion hole. In this structure, by tightening the end of the suture thread away from the suture needle, the suture needle can be stably positioned in the insertion hole under the action of the insertion hole and the tensioning force of the suture thread, and when the suture thread is loosened, the suture needle that loses the tension of the suture thread can easily fall out of the insertion hole, thereby realizing easy separation of the suture needle and the push rod.

[0011] Further improvement, an operating rod is provided at one end of the push rod away from the insertion hole, and a wire clamping groove is provided on the operating rod to form a wire clamping portion; when the suture needle is inserted into the insertion hole, the suture thread is tightened until the end of the suture thread away from the suture needle is wound around the wire clamping groove, so as to position the suture needle in the slot; the side walls of the two lugs are provided with an open groove connected to the guide slide, and the open groove extends along the axial direction of the guide slide; when the suture thread is released from the wire clamping groove, the suture thread can be separated from the lug along the open groove.

[0012] As a further improvement, a limit groove is provided on the side wall of the upper end of the sleeve; when in a non-working state, the end of the operating rod away from the push rod is limitedly fitted in the limit groove, and when in a working state, the operating rod is rotated to disengage it from the limit groove, so that the push rod can slide in the guide slide.

[0013] As a further improvement, the end of the push rod for mounting the suture needle is provided with a transition section, and the diameter of the transition section is smaller than the diameter of the push rod but larger than the diameter of the suture needle; the mounting hole is provided at the outer end of the transition section.

[0014] In the improvement, the outer side wall of the transition section is a conical surface, and the small end of the conical surface extends to the side wall of the suture needle. In this way, when suturing, one end of the push rod equipped with the suture needle can also better pass through the abdominal wall tissue layer to be sutured.

[0015] In a further improvement, the push rod side wall is provided with scale lines extending in the axial direction. In this improved structure, the scale lines can directly reflect the sliding distance of the push rod, thereby ensuring that when the push rod is slid to a set distance, the suture needle part can completely enter the inner cavity of the sleeve.

[0016] In a further improvement, a valve is provided in the inner cavity of the sleeve along the axial direction and below the passage. The valve is provided in this structure to ensure the sealing of the operating space in the suit, so that the operation can be performed in a proper inflation state during surgery.

[0017] In a further improvement, magnets are provided on the side walls of the sleeve below the two channels. In this structure, by adding the magnet structure, when the push rod is pulled out, the suture needle can be stably retained in the inner cavity of the sleeve, so that the subsequent suture needle can be separated from the patient's body cavity along with the sleeve, and the two ends of the suture thread can be taken out at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the puncture suture device of the present invention. (without the push rod)

[0019] Figure 2 yes Figure 1 A semi-sectional diagram of the puncture stapler removing the puncture.

[0020] Figure 3 yes Figure 2 A cross-sectional view of the puncture suture device after being installed in the push rod structure.

[0021] Figure 4 yes Figure 2 A cross-sectional view of the puncture suture device after it is installed in the push rod structure. (The suture needle and the push rod are separated)

[0022] Figure 5 It is a schematic diagram of the suture line.

[0023] Figure 6 It is a partial exploded schematic diagram of the matching structure between the suture needle and the end of the push rod.

[0024] Figure 7 yes Figure 2 Top view of the mid-puncture stapler.

[0025] As shown in the figure:

[0026] 1-cannula, 1.1-channel, 1.2-limiting groove, 2-puncture needle, 3-push rod, 3.1-insertion hole, 3.2-conical surface, 3.3-accommodating groove, 3.4-transition section, 4-suture needle, 5-suture thread, 6-lug, 6.1-guide slide, 6.2-opening groove, 7-valve, 8-operating rod, 8.1-cable slot, 8.2-limiting block, 9-magnet, 10-limiting protrusion. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "outside, inside", "tail end", "below" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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 an indirect connection 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.

[0030] like Figure 1 , 2 As shown, the present invention provides a puncture suturing device, comprising a puncture needle 2 and a sleeve 1. The puncture needle 2 is slidably arranged in the sleeve 1, and the puncture needle is mainly used to penetrate the skin or fascia layer.

[0031] Two channels 1.1 are symmetrically provided on the side wall of the sleeve 1 along its axis; two lugs 6 are symmetrically provided on the upper end of the sleeve 1 along the axis, and guide parts are respectively provided on the two lugs 6, and two push rods 3 are slidably connected to the guide parts, and one end of each push rod 3 is provided with an insertion hole 3.1, and a suture needle 4 is slidably provided in the insertion hole 3.1, and the needle eyes of the two suture needles 4 are connected together by a suture thread 5; the suture thread 5 is tightened or loosened away from the two ends of the suture needle 4 so that the suture needle 4 is positioned in the insertion hole 3.1 or detached from the insertion hole 3.1, and when the push rod 3 slides downward along the guide part for a preset distance, one end of the push rod 3 connected to the suture needle 4 passes through the channel 1.1 and extends into the inner cavity of the sleeve 1.

[0032] Specifically, the suture needle 4 is detachably connected to one end of the push rod 3 by sliding. Specifically, an insertion hole 3.1 is provided at one end of the push rod 3 near the channel 1.1. The tail end of the suture needle 4 can be slidably inserted in the insertion hole 3.1. A thread clamping portion is provided on the push rod 3. When two suture needles 4 are respectively mounted in the mounting holes 3.1, the suture thread 5 is tightened by hand close to the two ends of the suture needle 4, and then the suture thread 5 is slowly moved toward the middle position of the suture thread 5 until the two ends of the suture thread 5 are limited in the thread clamping portion. Under the tension of the suture thread 5, the suture needle 4 is positioned in the insertion hole 3.1 and will not come loose. When the needle is removed, the suture thread 5 is released from the thread clamping portion. Without the tension of the suture thread 5, the suture needle 4 will automatically come out of the insertion hole 3.1 under the action of its own gravity. Then the push rod 3 is pulled out in the opposite direction, so that the suture needle 4 continues to stay in the inner cavity of the sleeve 1. Figure 6 As shown, the suture needle 4 and the end of the push rod 3 are separated.

[0033] In this structure, in order to prevent the suture needle 4 from being dragged out when the push rod 3 is pulled out, magnets 9 are respectively provided on the side walls of the sleeve 1 located below the two channels 1.1. After such arrangement, when the suture needle 4 completely enters the inner cavity of the sleeve 1, the suture thread 5 is released, and the suture needle 4 is firmly attracted to the inner wall of the sleeve 1 under the suction force of the magnet 9. At this time, when the push rod 3 is pulled out, the suture needle 4 is ensured to be stably and firmly positioned inside the sleeve 1; at the same time, when the sleeve 2 is pulled out of the body cavity, the suture needle 4 and suture thread 5 in the sleeve 1 can also leave the body cavity together with it, so that the two ends of the solid suture thread 5 enter the body cavity from the outside, and then wind out from the inside, as shown in FIG. Figure 5 As shown, knot suturing is achieved.

[0034] More specifically, in order to ensure that the suture needle 4 can be removed together with the sleeve 1 when the sleeve 1 is pulled out, a layer of elastic membrane can be provided in the channel 1.1 on the side wall of the sleeve 1. The elastic membrane needs to ensure that the suture needle 4 can pass through smoothly. In this way, during suturing, the push rod 3 pushes the suture needle 4 to pass through the abdominal wall tissue together, and then passes through the elastic membrane (at this time, the hole on the elastic membrane is in an elastically opened state) and enters the inner cavity of the sleeve 1. When the suture needle 4 is separated from the push rod 3, the push rod 3 is pulled out, driving the suture needle 4 to continue to remain in the inner cavity of the sleeve 1. At this time, the perforation on the elastic membrane shrinks back to a small hole, thereby effectively avoiding the situation that the suture needle 4 cannot be taken out together when the sleeve 1 is pulled out of the body.

[0035] In this embodiment, Figure 6As shown, a transition section 3.4 is provided at one end of the push rod 3 for installing the suture needle 4. The diameter of the transition section 3.4 is smaller than the diameter of the push rod 3, but larger than the diameter of the suture needle 4, so that the suture needle 4 can be installed and it is more convenient for the section to pass through the abdominal wall tissue together with the suture needle 4. Specifically, the outer wall of the transition section 3.4 is a conical surface, and the small end of the conical surface 3.2 extends to the side wall of the suture needle 4. In this way, when suturing, the end of the push rod 3 equipped with the suture needle 4 can also better pass through the abdominal wall tissue layer to be sutured. In this structure, the push rod 3 is mainly used to push the suture needle 4, and it needs to have a certain structural strength, so the diameter cannot be too small; and the end used to connect the suture needle 4 needs to pass through the abdominal wall tissue together, so the diameter cannot be too large, so a transition section 3.4 structure is added to this structure to solve the above problems.

[0036] like Figure 3 As shown, an operating rod 8 is provided at one end of the push rod 3 away from the insertion hole 3.1, and a limiting groove 1.2 is provided on the side wall of the upper end of the sleeve 1; when in a non-working state, one end of the operating rod 8 is limitedly engaged in the limiting groove 1.2, and when in a working state, the operating rod 8 is rotated to disengage from the limiting groove 1.2, so that the push rod 3 can slide in the guide slide 6.1.

[0037] The operating rod 8 is also provided with a wire clamping groove 8.1. When the two suture needles 4 are respectively inserted into the insertion holes 3.1, the two ends of the suture thread 5 are respectively tightened until the two ends of the suture thread 5 away from the suture needle 4 are both wound in the wire clamping groove 8.1. Under the action of the tensioning force of the suture thread 5, the suture needle 4 is positioned in the slot 3.1.

[0038] On the other hand, the side walls of the two lugs 6 are provided with an open groove 6.2 connected to the guide slide 6.1, and the open groove 6.2 extends along the axial direction of the guide slide 6.1. Since the suture thread 5 is connected to the suture needle 4, when the suture thread 5 is released from the clamping groove 8.1, the suture thread 5 can be separated from the lug 6 along the open groove 6.1 to ensure that the suture needle can continue to remain in the inner cavity of the sleeve 1 when the push rod 3 is pulled out; the corresponding open groove 6.2 is provided on the side wall of the lug 6, mainly for the suture thread 5 to be separated from the guide slide 6.1.

[0039] More specifically, in this structure, Figure 2 , 7As shown, two limiting protrusions 10 are protruded outwardly on the side wall of the upper end of the sleeve 1, and the two limiting protrusions 10 correspond to the two lugs 6 structures, and the upper end of each limiting protrusion 10 is provided with a limiting groove 1.2 with an arc-shaped side wall. Correspondingly, a limiting block 8.2 with an arc-shaped outer wall is protruded at the end of the operating rod 8, and the limiting block 8.2 extends along the thickness direction of the operating rod 8, so that before the suturing operation, the upper end of the push rod 3 is matched in the limiting groove 1.2 through the limiting block 8.2 at one end of the operating rod 8 to limit the push rod 3; preferably, the limiting block 8.2 in this structure is elastic, and the volume of the spherical limiting block 8.2 is slightly larger than the volume of the limiting groove 1.2, so that the limiting block 8.2 and the limiting groove 1.2 are more stable after assembly and are not easy to fall off; and the elastomer is easy to deform and will not affect the disassembly. When suturing operation is required, the operating rod 8 is firstly lifted up a short distance to separate the operating rod 8 from the limiting protrusion 10, and then the operating rod 8 is rotated to a suitable angle to slide the push rod 3 and perform suturing operation.

[0040] On the other hand, in this structure, a linear scale line extending in the axial direction is provided on the side wall of the push rod 3. With this arrangement, when the push rod 3 is pushed to slide obliquely downward to a set scale position during suturing, the suture needle 4 at the end of the push rod 3 can be ensured to enter the interior of the sleeve 1 safely, so that when the suture thread 5 is loosened, the suture needle 5 can be ensured to easily fall out of the insertion hole 3.1 and enter the inner cavity of the sleeve 1.

[0041] In this embodiment, the suture needle 4, the suture thread 5 and the push rod 3 are pre-assembled components, and the assembly is slidably fitted on the side wall of the sleeve 1, so that when the wound is sutured after the operation, the push rod 3 can be directly pushed. Figure 2 , 3 On the other hand, in order to make the suture needle 4 more stable in the insertion hole 3.1 of the push rod 3 when the suture thread 5 is pulled, and the suture thread 5 will not shake, a receiving groove 3.3 for receiving the suture thread 5 is also provided on the side wall of the push rod 3, as shown in FIG. Figure 6 As shown, when the suture thread 5 is pulled, it can be better ensured that the suture thread 5 is in a taut state, so that the suture needle 4 is more stable in the insertion hole 3.1.

[0042] Of course, in other embodiments, the push rod 3 and the suture needle 4 with the suture thread 5 may also be assembled later, that is, when suturing, the suture needle 4 with the suture thread 5 needs to be inserted into the push rod 3 first, and the suture thread 5 is tensioned to position the suture needle 4 at one end of the push rod 3, and then the push rod 3 is pushed to perform the suturing operation.

[0043] In addition, such as Figure 2As shown, a valve 7 is provided in the inner cavity of the sleeve 1 along the axial direction and below the channel 1.1. The valve 7 is provided mainly to achieve the sealing of the operating body cavity, facilitate the pneumoperitoneum operation, and fill the abdominal cavity with a certain amount of gas to cause the operating abdominal cavity to bulge slightly, so that the tissues and organs can be more clearly displayed during the operation, thereby improving the success rate of the operation. In addition, due to the existence of the valve 7 structure, it can also prevent the risk of the suture needle 4 falling into the patient's body.

[0044] During the specific operation, a small incision is first made on the patient's skin, and then the puncture 2 tip of the puncture device is aligned with the small incision, and the puncture device is moved downward while being rotated back and forth left and right. After the puncture device enters the body cavity, the puncture needle 2 assembly can be removed from the sleeve 1, leaving the sealed sleeve assembly as a passage for surgical instruments to enter and exit the body cavity; after the operation is completed, the wound needs to be sutured, and at this time, the push rod 3 needs to be used for suturing. The ends of the two push rods 3 with the suture needles 4 are slid along the inclined direction of the lug 6, and the ends of the two push rods 3 with the suture needles 4 first pass through the suture layer of the abdominal wall tissue and then enter the sleeve 1 through the two channels 1.1 respectively, as shown in FIG. Figure 3 Then, the locking device is unlocked so that the end of the push rod 3 is disengaged from the suture needle 4, and the push rod 3 is pulled out so that the suture needle 4 remains in the sleeve 1, as shown. Figure 4 As shown, when the cannula 1 is pulled out again, two suture needles 4 can be taken out, and the suture needles 4 will take out both ends of the suture thread 5 together, as shown in FIG. Figure 5 As shown, by pulling the two ends of the suture thread 5 connected to the suture needle 4, the wound can be closed, and then the two ends of the suture needle 4 are knotted to achieve suturing of the wound.

[0045] On the other hand, in this embodiment, a guide slide 6.1 is provided on the lug 6 and is inclined from the outside to the inside along the radial direction of the sleeve 1. The push rod 3 can be slidably inserted into the guide slide 6.1. After such an arrangement, the guide slide 6.1 has a better limiting and guiding effect on the sliding of the push rod 3. In addition, in the structure of the present invention, an appropriate distance is left between the center line position of the guide channel 6.1 and the side wall of the lower end of the sleeve 1. Specifically, a distance of more than 0.8 cm is left between the suture needle 4 passing through the guide channel 6.1 and the side wall of the sleeve 1, so as to ensure that the suture needle 4 will not cause the suture threading hole to be torn and connected with the wound after piercing the abdominal wall tissue during suturing, thereby ensuring the accuracy of suturing.

[0046] In this structure, the lower ends of the two lugs 6 are both limiting planes, that is, when the sleeve 1 penetrates into the patient's body cavity until the limiting plane abuts against the patient's wound suture surface, the push rod 3 can be pushed along the guide slide 1.1 to perform the suturing operation, ensuring that the suturing position is more accurate and the suturing is more convenient and efficient.

[0047] Of course, in other implementations, in order to ensure that the lower end limiting plane of the lug 6 has a better limiting effect during suturing, the lug 6 structure in this structure can be a complete conical platform structure, and the upper end of the conical platform structure is the large diameter end, and the lower end is the small diameter end.

[0048] The above is an explanation of the preferred embodiments of the present invention, but it cannot be understood as a limitation of the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A puncture suture device, comprising a puncture needle and a cannula, wherein the puncture needle is slidably inserted into the cannula, and characterized in that: Two channels are symmetrically provided on the side wall of the sleeve along its axis; two lugs are symmetrically provided on the upper end of the sleeve along the axis, and guide parts are respectively provided on the two lugs, and two push rods are slidably connected to the guide parts, and one end of each push rod is provided with an insertion hole, and a suture needle is slidably provided in the insertion hole, and the needle eyes of the two suture needles are connected together by a suture thread; the suture thread is tightened or loosened away from the two ends of the suture needle so that the suture needle is positioned in the insertion hole or detached from the insertion hole, and when the push rod slides downward along the guide part for a preset distance, the end of the push rod connected to the suture needle passes through the channel and extends into the inner cavity of the sleeve.

2. The puncture stapler according to claim 1, characterized in that: The lug is provided with a guide slideway which is inclined from the outside to the inside along the radial direction of the sleeve, and the push rod is slidably arranged in the guide slideway.

3. The puncture stapler according to claim 1, characterized in that: An operating rod is provided at one end of the push rod away from the insertion hole, and a wire clamping groove is provided on the operating rod to form a wire clamping portion; when the suture needle is inserted into the insertion hole, the suture thread is tightened until the end of the suture thread away from the suture needle is wound in the wire clamping groove, so as to realize the positioning of the suture needle in the slot; the side walls of the two lugs are provided with an open groove connected to the guide slide, and the open groove extends along the axial direction of the guide slide; when the suture thread is released from the wire clamping groove, the suture thread can be separated from the lug along the open groove.

4. The puncture stapler according to claim 3, characterized in that: A limiting groove is provided on the side wall of the upper end of the sleeve; in the non-working state, the end of the operating rod away from the push rod is limitedly fitted in the limiting groove, and in the working state, the operating rod is rotated to disengage from the limiting groove so that the push rod can slide in the guide slide.

5. The puncture stapler according to claim 1, characterized in that: The end of the push rod for mounting the suture needle is provided with a transition section, and the diameter of the transition section is smaller than the diameter of the push rod but larger than the diameter of the suture needle; the insertion hole is arranged at the outer end of the transition section.

6. The puncture stapler according to claim 5, characterized in that: The outer side wall of the transition section is a conical surface, and the small end of the conical surface extends to the side wall of the suture needle.

7. The puncture stapler according to claim 1, characterized in that: The side wall of the push rod is provided with scale lines extending in the axial direction.

8. The puncture stapler according to any one of claims 1 to 7, characterized in that: A valve is arranged in the inner cavity of the sleeve along the axial direction and below the channel.

9. The puncture stapler according to claim 8, characterized in that: Magnets are respectively arranged on the side walls of the sleeve below the two channels.

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