Surgical needle

Abstract

The utility model relates to the technical field of medical instruments, in particular to a surgical needle which comprises a needle body and a sleeve. The needle body is located in the sleeve and slidably connected with the sleeve in the depth direction of the sleeve. The needle body comprises a needle point section and a needle tail section, first scale grooves are formed in the needle point section in the depth direction of the sleeve, second scale grooves are formed in the outer wall of the sleeve in the depth direction of the sleeve, and the distance between every two adjacent first scale grooves is equal to the distance between every two adjacent second scale grooves. A first through hole penetrates through the outer wall of the sleeve in the depth direction of the sleeve. The device has the effect that the depth of puncturing into the skin can be observed.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a surgical needle. Background Art

[0002] In cardiac surgery, the suturing of arterial blood vessels mainly relies on the manual operation of doctors. Generally, a surgical needle is used to suture the wound of the patient.

[0003] Common surgical needles generally consist of a needle body and a needle tip. A needle eye is provided at the tail of the needle body. During use, a person picks up the tail of the needle with forceps, ensures that the needle tip faces the surgical area, inserts one end of the thread into the needle eye, ensures that the thread is firmly fixed to the needle, inserts the needle tip of the surgical needle into the skin of the surgical area, and performs suturing.

[0004] Regarding the above related technologies, when using a surgical needle for suturing, especially when suturing arterial blood vessels, a certain penetration amount needs to be ensured. However, in the related technologies, manual observation is adopted. Due to the complexity of surgical operations and the influence of human factors, the depth of the surgical needle when piercing into the blood vessel often has inconsistencies and errors, which may affect the surgical effect and patient safety. Therefore, there is an urgent need to provide a surgical needle that can observe the depth of penetration into the skin. Utility Model Content

[0005] In order to be able to observe the depth of the surgical needle penetrating into the skin, this application provides a surgical needle.

[0006] The surgical needle provided by this application adopts the following technical solutions:

[0007] A surgical needle includes a needle body and a sleeve;

[0008] The needle body is located inside the sleeve, and the needle body is slidably connected to the sleeve along the depth direction of the sleeve.

[0009] A first scale groove is provided on the needle tip section along the depth direction of the sleeve. A second scale groove is provided on the outer wall of the sleeve along its own depth direction. The distance between adjacent first scale grooves is the same as the distance between adjacent second scale grooves. A first through hole is provided through the outer wall of the sleeve along its own depth direction.

[0010] By adopting the above technical solution, when suturing arterial blood vessels, a certain penetration amount must be ensured. Due to the complexity of surgical operations and human factors, it is difficult for personnel to observe the penetration depth, which may affect the surgical effect and safety. In order to more clearly observe the depth of the needle body penetrating the skin, a first scale groove is provided on the needle body and a second scale groove is provided on the sleeve. When the needle body slides along the axial direction of the sleeve, personnel can observe the position of the needle body in the axial direction of the sleeve through the first through hole, which further facilitates personnel to control the depth of the needle body penetrating the skin. In addition, the sleeve is sleeved outside the needle body, and the needle body can be protected when not in operation.

[0011] Optionally, it further includes a handle, the handle is detachably connected to the needle body, and the sleeve is fixedly connected to one end of the handle close to the needle body.

[0012] By adopting the above technical solution, since the surgical needle is relatively thin and not convenient for personnel to operate, therefore, by providing a handle, it is convenient for personnel to hold and operate.

[0013] Optionally, the needle body includes a needle tip section and a needle tail section, and a threading hole is formed through the needle tail section.

[0014] By adopting the above technical solution, in order to facilitate personnel to fix the suture on the needle body, a threading hole for the suture to pass through is formed through the needle tail section.

[0015] Optionally, it further includes a wire inlet assembly, the wire inlet assembly includes a plurality of blocking blocks, a wire inlet groove is formed at the end of the needle tail section along the axial direction of the sleeve, the wire inlet groove communicates with the threading hole, receiving grooves are formed on two side walls of the wire inlet groove parallel to each other along a first direction, the first direction is perpendicular to the axial direction of the sleeve, and each receiving groove is provided with one of the blocking blocks. An inlet area is formed between two adjacent blocking blocks, and the blocking blocks are slidably connected to the needle body in the first direction to adjust the width of the inlet area.

[0016] By adopting the above technical solution, since the threading hole is provided in the needle tail section and the threading hole is generally small, personnel may have difficulty seeing clearly when threading due to the influence of light. For this reason, through the communication between the wire inlet groove and the threading hole, the suture enters the wire inlet groove from the inlet area between the two blocking blocks, so as to prevent personnel from directly threading the suture into the threading hole. When the suture is located in the wire inlet groove, in order to seal the connection between the wire inlet groove and the threading hole and prevent the suture from slipping out of the wire inlet groove, the blocking blocks can be slidably connected to the needle body in the first direction, so that when two adjacent blocking blocks slide to fit together, the connection between the wire inlet groove and the threading hole can be sealed.

[0017] Optionally, the incoming line assembly further includes a first elastic member located in the receiving groove. One end of the first elastic member is fixedly connected to the groove wall of the receiving groove, and the other end is fixedly connected to the blocking block. The telescopic direction of the first elastic member is parallel to the first direction. When the first elastic member is in a normal state, the adjacent ends of the two blocking blocks are in contact with each other.

[0018] By adopting the above technical solution, due to the differences in the suture materials and models used during surgical suturing, in order to enable sutures of different models to enter the threading hole from the incoming line area, one end of the first elastic member is fixedly connected to the receiving groove, and the other end is fixedly connected to the blocking block. Under the action of the first elastic member, the incoming line area between the two blocking blocks allows the suture to pass through. When the first elastic member is in a normal state, the two blocking blocks are in contact with each other, reducing the possibility of the suture slipping out from the incoming line area.

[0019] Optionally, it further includes a first sliding assembly, and the first sliding assembly includes a sliding seat and an operating member;

[0020] The handle is provided with a second through hole penetrating along the barrel depth direction of the sleeve. One end of the sliding seat is located in the second through hole, and the other end is detachably connected to the needle tail section;

[0021] The operating member is parallel to the barrel depth direction of the sleeve. One end of the operating member is located in the second through hole and is connected to the end of the sliding seat away from the needle body, and the other end passes through the second through hole and extends to the outside of the end of the handle away from the needle body. The hole wall of the second through hole is provided with a first sliding groove along the barrel depth direction of the sleeve. A slider is fixedly connected to the operating member, and the slider is located in the sliding groove. The slider is slidably connected to the handle along the barrel depth direction of the groove wall of the first sliding groove.

[0022] By adopting the above technical solution, since the types and models of surgical needles vary depending on the suturing site, in order to facilitate the replacement of different types of needle bodies, the needle body is connected to the sliding seat in a detachable manner. In order to drive the needle body to slide along the barrel depth direction of the sleeve and for easy operation by personnel, by setting the operating member, personnel can further drive the needle body to slide by sliding the operating member.

[0023] Optionally, there are two operating members. A plurality of positioning blocks are evenly spaced along the barrel depth direction in the first sliding groove. The positioning blocks limit the sliding of the slider along the groove wall of the first sliding groove. Each operating member is slidably connected to the sliding seat in a reciprocating manner along the first direction.

[0024] By adopting the above technical solution, in order to limit the sliding of the slider along the wall of the first chute, a plurality of positioning blocks are arranged at intervals in the first chute, and the slider is blocked by the positioning blocks. When it is necessary for the slider to continue sliding along the wall of the first chute, each operating member is slidably connected to the sliding seat in the first direction. When the two operating members slide in the first direction and approach each other, the two sliders also move toward the side close to each other, so that the slider can continue to slide along the depth direction of the sleeve.

[0025] Optionally, it further includes a second sliding assembly. The second sliding assembly includes a telescopic rod parallel to the first direction. One end of the sliding seat close to the operating member is provided with a second chute along the depth direction of the sleeve. The fixed section of the telescopic rod is fixedly connected to the wall of the second chute, and the movable section of the telescopic rod is fixedly connected to the operating member. One ends of the fixed section and the movable section of the telescopic rod close to each other are slidably connected in the first direction.

[0026] By adopting the above technical solution, in order to drive the operating member to be slidably connected to the sliding seat in the first direction, the telescopic rod is fixedly connected between the operating member and the wall of the second chute, so that the two operating members are pulled by a person, and under the action of the telescopic rod, the two operating members are driven to slide in the first direction.

[0027] Optionally, the second sliding assembly further includes a second elastic member sleeved on the telescopic rod. One end of the second elastic member is fixedly connected to the operating member. When the second elastic member is in a normal state, there is a sliding gap between the two operating members.

[0028] By adopting the above technical solution, when a person pulls the two operating members so that the slider can slide by pressing against the wall of the first chute, in order to enable the positioning block to limit the slider again, the second elastic member is sleeved on the telescopic rod. Under the action of the elastic member, the two operating members can return to the initial position, so that the positioning block can limit the slider again.

[0029] Optionally, in the depth direction of the sleeve, the distance between two adjacent positioning blocks is the same as the distance between two adjacent second scale grooves on the sleeve.

[0030] By adopting the above technical solution, in order to further standardize the control of the depth of the needle body piercing the skin, the distance between two adjacent positioning blocks in the sleeve is the same as the distance between two adjacent second scale grooves, so that a person can more accurately control the depth of the needle body piercing the skin.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. By providing the first scale groove and the second scale groove in the present application, when the needle body slides along the barrel depth direction of the sleeve, the depth of the needle body penetrating the skin can be observed through the second scale groove on the sleeve;

[0033] 2. By providing the wire inlet assembly in the present application, sutures of different materials or types can be inserted into the threading hole;

[0034] 3. In the present application, the depth of the needle body penetrating the skin can be further controlled by multiple positioning blocks. Description of the Drawings

[0035] Figure 1 is a schematic diagram of the overall structure of a surgical needle of the present application;

[0036] Figure 2 is a schematic diagram of the structure of the wire inlet assembly of the present application;

[0037] Figure 3 is a schematic diagram of the structure of the sliding seat and the needle body of the present application;

[0038] Figure 4 is a schematic diagram of the structure of the first sliding assembly of the present application;

[0039] Figure 5 is a schematic diagram of the structure of the second sliding assembly of the present application.

[0040] Description of the Reference Numerals: 1. Needle body; 11. Tip section; 12. Needle tail section; 122. Threading hole; 123. Thread inlet groove; 1231. Accommodating groove; 13. First scale groove; 2. Sleeve; 21. Second scale groove; 22. First through hole; 3. Handle; 31. Second through hole; 311. First sliding groove; 312. Positioning block; 4. Wire inlet assembly; 41. Blocking block; 411. Wire inlet area; 42. First elastic member; 5. First sliding assembly; 51. Sliding seat; 511. Mounting hole; 512. Second sliding groove; 52. Operating member; 521. Slide block; 522. Sliding gap; 6. Second sliding assembly; 61. Expansion rod; 62. Second elastic member. Detailed Description of the Embodiment

[0041] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0042] An embodiment of the present application discloses a surgical needle. Referring to Figure 1 , the surgical needle includes a needle body 1, a sleeve 2, and a handle 3. The handle 3 is detachably connected to the needle body 1 to facilitate a person to hold the handle 3 for suturing. The needle body 1 is located inside the sleeve 2, and the needle body 1 is slidably connected to the sleeve 2 along the barrel depth direction of the sleeve 2.

[0043] Referring to Figure 1, when suturing a wound, due to the complexity of the surgical operation and the influence of human factors, when the needle body 1 penetrates into the patient's suture site, the depth of penetration into the blood vessel will be inconsistent and there will be errors. In order to reduce the errors, the needle body 1 includes a needle tip section 11 and a needle tail section 12. The needle tail section 12 is detachably connected to the handle 3, and the sleeve 2 is fixedly connected to the handle 3. A first scale groove 13 is provided on the needle body 1 along the depth direction of the sleeve 2. A second scale groove 21 is provided on the outer wall of the sleeve 2 along its own depth direction. The sleeve 2 is provided with a first through hole 22 along its own depth direction. When the needle body 1 slides along the depth direction of the sleeve 2, the operator can observe the relative position between the first scale groove 13 on the needle body 1 and the second scale groove 21 on the sleeve 2 through the first through hole 22, and further judge the depth of penetration of the needle body 1 into the skin.

[0044] Referring to Figure 2 , in order to be able to fix the suture on the needle body 1, the needle tail section 12 is provided with a threading hole 122 for the suture to pass through. The material or model of the suture used in the suture operations for different parts is different. Since the threading hole 122 is provided in the needle tail section 12 and the threading hole 122 is relatively small, it is difficult for the operator to thread the suture. Therefore, the surgical needle further includes a wire inlet assembly 4. The wire inlet assembly 4 includes a plurality of blocking blocks 41. A wire inlet groove 123 is provided on the needle tail section 12 of the needle body 1 along the depth direction of the sleeve 2. The wire inlet groove 123 communicates with the threading hole 122. Accommodating grooves 1231 are provided on the two groove side walls of the wire inlet groove 123 parallel to each other along a first direction. The first direction is perpendicular to the depth direction of the sleeve 2. A blocking block 41 is provided in each accommodating groove 1231. An inlet area 411 is formed between the two blocking blocks 41. The suture can enter the threading hole 122 through the inlet area 411 in sequence. In order to make the suture enter the threading hole 122 more smoothly from the inlet area 411, the end of the blocking block 41 away from the threading hole 122 is inclined. The blocking block 41 is inclined from the needle tail section 12 to the needle tip section 11 side away from the accommodating groove 1231. In order to enable the inlet area 411 to adapt to sutures of different models, the two blocking blocks 41 are slidably connected to the needle body 1 along the first direction in a reciprocating manner to adjust the width of the inlet area 411; in some embodiments, the threading hole 122 can be a circular hole or a hole of any shape as long as it can allow the suture to pass through. Any shape of the hole within the scope of protection of this application. In this embodiment, the threading hole 122 is a circular hole.

[0045] Referring to Figure 2, after the suture enters the threading hole 122 from the wire inlet area 411, in order to prevent the suture from slipping out of the wire inlet area 411, the wire inlet assembly 4 further includes a first elastic member 42. A first elastic member 42 is provided in each receiving groove 1231. One end of the first elastic member 42 is fixedly connected to the groove wall of the receiving groove 1231, and the other end is fixedly connected to the blocking block 41. In this embodiment, the first elastic member 42 is a compression spring, and the telescopic direction of the first elastic member 42 is parallel to the first direction. The first elastic member 42 has a force that drives the blocking block 41 to move away from the side of the receiving groove 1231 under recoverable deformation; when the first elastic member 42 is in a normal state, the closer ends of the two blocking blocks 41 are in contact with each other to prevent the suture from slipping out of the wire inlet area 411. When the suture needs to enter the threading hole 122, under the action of the first elastic member 42, the suture can enter the threading hole 122 from the wire inlet area 411, and the operator can easily thread the suture into the threading hole 122. When the needle body 1 slides along the barrel depth direction of the sleeve 2, the suture passes through the first through hole of the sleeve 2.

[0046] Referring to Figure 3 and Figure 4 , in order to drive the needle body 1 to slide along the barrel depth direction of the sleeve 2, the surgical needle further includes a first sliding assembly 5. The first sliding assembly 5 includes a sliding seat 51 and an operating member 52. The handle 3 is provided with a second through hole 31 along the barrel depth direction of the sleeve 2. The sliding seat 51 is located in the second through hole 31. One end of the sliding seat 51 is detachably connected to the needle tail section 12 of the needle body 1. Specifically, an installation hole 511 is opened at one end of the sliding seat 51 close to the needle tail section 12, and the needle tail section 12 is inserted into the installation hole 511. In some embodiments, the sliding seat 51 and the needle body 1 can also be connected and fixed by a snap-fit groove structure. As long as the mechanical structure that can achieve the detachable connection between the sliding seat 51 and the needle body 1 is within the protection scope of this application. It should be noted that the outer diameter of the sliding seat 51 is smaller than the inner diameter of the sleeve 2, that is, the sliding seat 51 can be slidably connected to the sleeve 2 along the barrel depth direction of the sleeve 2;

[0047] Referring to Figure 4 , the operating member 52 is parallel to the barrel depth direction of the sleeve 2. One end of the operating member 52 is located in the second through hole 31 and is connected to the end of the sliding seat 51 away from the needle body 1, and the other end extends to the outside of the end of the handle 3 away from the needle body 1 after passing through the second through hole 31. A first sliding groove 311 is opened in the hole wall of the second through hole 31 along the barrel depth direction of the sleeve 2. A slider 521 is fixedly connected to the outer peripheral wall of the operating member 52. The slider 521 is located in the first sliding groove 311. The slider 521 is slidably connected to the handle 3 along the barrel depth direction of the groove wall of the first sliding groove 211. The operator can further drive the needle body 1 to slide along the barrel depth direction of the sleeve 2 by sliding the handle 3.

[0048] Referring to Figure 4, in order to position the sliding of the slider 521 along the groove wall of the first sliding groove 311, a plurality of positioning blocks 312 are fixedly connected at equal intervals along the depth direction of the sleeve 2 in the first sliding groove 311, so as to limit the sliding of the slider 521 in the first sliding groove 311 by the positioning blocks 312. In order to enable the slider 521 to continue sliding, there are two operating members 52, and each operating member 52 is slidably connected to the sliding seat 51 in a reciprocating manner along the first direction.

[0049] Referring to Figure 4 and Figure 5 , in order to drive the operating member 52 to be slidably connected to the sliding seat 51 along the first direction, the surgical needle further includes a second sliding assembly 6. The second sliding assembly 6 includes two telescopic rods 61. A second sliding groove 512 is formed in one end of the sliding seat 51 close to the operating member 52 along the depth direction of the sleeve 2. The operating member 52 is located in the second sliding groove 512, and the two operating members 52 are arranged in parallel. The telescopic rods 61 are arranged parallel to the first direction. The fixed section of the telescopic rod 61 is fixedly connected to the groove wall of the second sliding groove 512, and the movable section of the telescopic rod 61 is fixedly connected to the operating member 52. One end of the fixed section and the movable section of the telescopic rod 61 are slidably connected. When a person pulls the operating member 52 to drive the two operating members 52 to approach each other, it will further drive the two sliders 521 to move toward the approaching side, that is, the slider 521 gradually moves away from the positioning block 312 in the first sliding groove 311, and the slider 521 can continue to slide in the first sliding groove 311.

[0050] Referring to Figure 5 , when a person pulls the two operating members 52 to further drive the two sliders 521 to approach each other, in order to block the slider 521 again by the positioning member, the second sliding assembly 6 further includes a second elastic member 62. The second elastic member 62 is sleeved on the telescopic rod 61. One end of the second elastic member 62 is fixedly connected to the groove wall of the second sliding groove 512, and the other end is fixedly connected to the operating member 52. The telescopic direction of the second elastic member 62 is parallel to the first direction. In this embodiment, the second elastic member 62 is a tension spring. In the normal state of the second elastic member 62, there is a sliding gap 522 between the two operating members 52, and the width of the sliding gap 522 is greater than the sum of the widths of the two positioning blocks 312 in the first direction. Pull the two operating members 52 to separate the slider 521 on each operating member 52 from the corresponding positioning block 312. When the operating member 52 is slid along the depth direction of the sleeve 2 to the required position and then the operating member 52 is loosened, under the action of the second elastic member 62, the two sliders 521 will move toward the inside of the second sliding groove 512, and the positioning block 312 will block the slider 521 again.

[0051] Referring to Figure 5, in order to further standardize the depth at which the tip section 11 of the needle body 1 penetrates the skin, in the barrel depth direction of the sleeve 2, the distance between two adjacent positioning blocks 312 is the same as the distance between two adjacent second scale grooves 21 on the sleeve 2. Personnel further determine and control the depth at which the tip section 11 penetrates the skin through the position of the slider 521 in the second sliding groove 512.

[0052] The implementation principle of a surgical needle according to an embodiment of the present application is as follows: The suture enters the threading hole 122 from the threading area 411 between the two blocking blocks 41. The needle body 1 is fixedly connected to the sliding seat 51. By pulling the two operating members 52 closer to each other, the two sliders 521 move closer to each other on the side away from the positioning block 312. Slide the operating member 52 in the barrel depth direction of the sleeve 2 until the needle body 1 is driven to the required position. Release the operating member 52, and the positioning block 312 positions the slider 521 in the first sliding groove 311. Personnel can further know the sliding distance of the needle body 1 according to the position of the slider 521 on the positioning block 312. When in use, drive the needle body 1 to slide in the barrel depth direction of the sleeve 2 by sliding the operating member 52. Personnel can clearly observe the depth at which the needle body 1 penetrates the skin through the relative positions of the first scale groove 13 on the needle body 1 and the second scale groove 21 on the sleeve 2. When the needle body 1 slides in the barrel depth direction of the sleeve 2, the suture can pass through the first through hole 22. After the tip section 11 of the needle body 1 penetrates the skin to a certain depth and exits to the skin surface, personnel can use surgical forceps to remove the surgical needle from the sliding seat 51 to thread the suture into the skin on one side to be sutured. Then insert the needle body 1 into the sliding seat 51 again and repeat the operation until the suturing is completed.

[0053] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A surgical needle, characterized in that: It includes a needle body (1) and a sleeve (2); The needle body (1) is located inside the sleeve (2), and the needle body (1) is slidably connected to the sleeve (2) along the axial direction of the sleeve (2); The needle body (1) is provided with a first scale groove (13) along the axial direction of the sleeve (2), and the outer wall of the sleeve (2) is provided with a second scale groove (21) along its own axial direction. The distance between two adjacent first scale grooves (13) is the same as the distance between two adjacent second scale grooves (21). A first through hole (22) is axially formed through the outer wall of the sleeve (2); It further includes a handle (3), the handle (3) is detachably connected to the needle body (1), and the sleeve (2) is fixedly connected to one end of the handle (3) close to the needle body (1); The needle body (1) includes a needle tip section (11) and a needle tail section (12), and a threading hole (122) is axially formed through the needle tail section (12); It further includes a first sliding assembly (5), and the first sliding assembly (5) includes a sliding seat (51) and an operating member (52); The handle (3) is axially provided with a second through hole (31). One end of the sliding seat (51) is located inside the second through hole (31), and the other end is detachably connected to the needle tail section (12); The operating member (52) is parallel to the axial direction of the sleeve (2). One end of the operating member (52) is located inside the second through hole (31) and is connected to the end of the sliding seat (51) away from the needle body (1), and the other end passes through the second through hole (31) and extends to the outside of one end of the handle (3) away from the needle body (1). The hole wall of the second through hole (31) is provided with a first sliding groove (311) along the axial direction of the sleeve (2). A slider (521) is fixedly connected to the operating member (52), and the slider (521) is located inside the first sliding groove (311). The slider (521) is slidably connected to the handle (3) along the axial direction of the groove wall of the first sliding groove (311); There are two operating members (52). A plurality of positioning blocks (312) are evenly spaced along the axial direction of the sleeve (2) inside the first sliding groove (311). The positioning blocks (312) limit the sliding of the slider (521) along the groove wall of the first sliding groove (311). Each operating member (52) is slidably connected to the sliding seat (51) in a reciprocating manner along a first direction; In the axial direction of the sleeve (2), the distance between two adjacent positioning blocks (312) is the same as the distance between two adjacent second scale grooves (21) on the sleeve (2).

2. The surgical needle according to claim 1, wherein: It further includes an incoming line component (4). The incoming line component (4) includes a plurality of blocking blocks (41). A wire inlet groove (123) is formed at the end of the needle tail section (12) along the axial direction of the sleeve (2). The wire inlet groove (123) communicates with the wire threading hole (122). Accommodating grooves (1231) are formed on two mutually parallel groove side walls of the wire inlet groove (123) along a first direction, and the first direction is perpendicular to the axial direction of the sleeve (2). One of the blocking blocks (41) is provided in each of the accommodating grooves (1231). An incoming line area (411) is formed between two adjacent blocking blocks (41). The blocking blocks (41) are slidably connected to the needle body (1) in the first direction back and forth to adjust the width of the incoming line area (411).

3. The surgical needle according to claim 2, wherein: The incoming line component (4) further includes a first elastic member (42). The first elastic member (42) is located in the accommodating groove (1231). One end of the first elastic member (42) is fixedly connected to the groove wall of the accommodating groove (1231), and the other end is fixedly connected to the blocking block (41). The telescopic direction of the first elastic member (42) is parallel to the first direction. When the first elastic member (42) is in a normal state, the adjacent ends of the two blocking blocks (41) are in mutual contact.

4. The surgical needle according to claim 1, characterized in that: It further includes a second sliding component (6). The second sliding component (6) includes a telescopic rod (61). The telescopic rod (61) is parallel to the first direction. A second chute (512) is formed at one end of the sliding seat (51) close to the operating member (52) along the axial direction of the sleeve (2). The fixed section of the telescopic rod (61) is fixedly connected to the groove wall of the second chute (512), and the movable section of the telescopic rod (61) is fixedly connected to the operating member (52). The adjacent ends of the fixed section and the movable section of the telescopic rod (61) are slidably connected in the first direction.

5. The surgical needle according to claim 4, wherein: The second sliding component (6) further includes a second elastic member (62). The second elastic member (62) is sleeved on the telescopic rod (61). One end of the second elastic member (62) is fixedly connected to the operating member (52). When the second elastic member (62) is in a normal state, there is a sliding gap (522) between the two operating members (52).

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