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CN-121987270-A - Anti-jumping needle holding forceps

CN121987270ACN 121987270 ACN121987270 ACN 121987270ACN-121987270-A

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a needle holder capable of preventing jumping. The invention provides a needle holding forceps for preventing jumping, which aims at the problem that the needle holding forceps in the prior art easily generate jumping in the process of adjusting the size of a forceps head, and comprises a rotatable left forceps handle, a rotatable right forceps handle, a forceps handle connecting assembly, a pull rod, a movable forceps head and a fixed forceps head; the invention provides a pull rod sliding limiting part positioned on one side of a fixed clamp head close to a pull rod, wherein the pull rod is provided with a limiting bulge, and the limiting bulge is matched with the pull rod sliding limiting part to enable the pull rod to stably and axially move. According to the invention, the outer wall of the pull rod sliding limiting component is laterally arranged at the two sides of the limiting bulge to prevent the pull rod from jumping, so that the binding clip connected with the pull rod is limited from jumping, and the stability of the needle-holding binding clip when the opening and closing angle is adjusted is improved.

Inventors

  • YANG FANGLIN
  • GUO XIAOJUN
  • LIU NAN
  • SHAO SUJUN

Assignees

  • 杭州康基医疗器械有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (10)

  1. 1. The anti-bouncing needle holding forceps comprise a rotatable left forceps handle (1), a rotatable right forceps handle (2), a forceps handle connecting assembly (3), a pull rod (4), a movable forceps head (5) and a fixed forceps head (6), wherein the forceps handle connecting assembly (3) is directly/indirectly connected with the pull rod (4), the movable left forceps handle (1) and the movable right forceps handle (2) can enable the forceps handle connecting assembly (3) to rotate to generate force of axial linear motion on the pull rod (4) in a direct/indirect mode, the pull rod (4) pulls the movable forceps head (5) to enable the pull rod to rotate relative to the fixed forceps head (6), and the anti-bouncing needle holding forceps is characterized by further comprising a pull rod sliding limiting part (7) connected to one side, close to the pull rod (4), of the fixed forceps head (6), a limiting protrusion (8) is arranged on the pull rod sliding limiting part (7), and the limiting protrusion (8) is in sliding connection in the axial direction of the pull rod (4) and interferes with the pull rod (4) to move along the axial direction perpendicular to the pull rod.
  2. 2. The anti-bouncing needle holder as set forth in claim 1, wherein the limiting protrusion (8) comprises a column (81) penetrating through the pull rod (4) and limiting pressing pieces (82), the limiting pressing pieces (82) are connected to two ends of the column (81), the pull rod sliding limiting part (7) is provided with symmetrical sliding grooves (71) along the axial direction of the pull rod (4), and the column (81) penetrates through the sliding grooves (71) to enable the limiting pressing pieces (82) to be connected to the outer wall of the pull rod sliding limiting part (7) in a sliding mode.
  3. 3. The anti-bouncing needle holder as claimed in claim 1, characterized in that the anti-bouncing needle holder further comprises a holder handle integration part (9), wherein the left holder handle (1) and the right holder handle (2) are respectively hinged at two ends of the holder handle integration part (9).
  4. 4. The anti-bouncing needle holder as set forth in claim 3, further comprising a connecting rod hinging part (10), wherein the forceps handle connecting component (3) comprises a pair of left forceps strip (31) and right forceps strip (32) hinged at the connecting rod hinging part (10), one ends of the left forceps strip (31) and the right forceps strip (32) are respectively connected with the left forceps handle (1) and the right forceps handle (2), and the left forceps handle (1) and the right forceps handle (2) are rotated to enable the left forceps strip (31) and the right forceps strip (32) to rotate relatively so as to push the connecting rod hinging part (10) to linearly displace.
  5. 5. The anti-bouncing needle holder as claimed in claim 4, characterized in that the connecting rod hinge (10) is detachably connected with a pull rod fixing device (11), and the pull rod fixing device (11) pulls the pull rod (4) to move.
  6. 6. The anti-bouncing needle holder as set forth in claim 5, wherein the tail of the pull rod (4) is a disc body or a sphere, the pull rod fixing device (11) comprises arc-shaped cover bodies (111) with concave spaces (1111) in the middle, the arc-shaped cover bodies (111) are symmetrically distributed, and the concave spaces (1111) of the arc-shaped cover bodies (111) form a pull rod limiting space (12) together to lock the tail of the pull rod (4).
  7. 7. The anti-bouncing needle holder as claimed in claim 1, further comprising a detachable base (13), wherein one end of the detachable base (13) is connected with the forceps handle integration part (9) and is in sliding connection with the arc-shaped cover body (111).
  8. 8. The anti-bouncing needle holder of claim 7, wherein the detachable base (13) is provided with a sliding groove (131), a convex column (1112) is arranged on the outer wall of the arc-shaped cover body (111), and the convex column (1112) is in sliding connection with the sliding groove (131) along the axial direction of the pull rod (4).
  9. 9. The anti-bouncing needle holder as set forth in claim 5, further comprising a sleeve transmission assembly (14), wherein one end of the sleeve transmission assembly (14) is detachably connected to the connecting rod hinging portion (10) and one end of the sleeve transmission assembly is detachably connected to the pull rod fixing device (11).
  10. 10. The anti-bouncing needle holder as set forth in claim 8, wherein the detachable base (13) further comprises a detachable portion (132), the detachable portion (132) has an inner diameter gradually increasing in a direction away from the handle connecting assembly (3), and the sliding groove (131) extends in the detachable portion (132).

Description

Anti-jumping needle holding forceps Technical Field The invention belongs to the technical field of medical equipment, and particularly relates to a needle holder capable of preventing jumping. Background In laparoscopic surgery, needle holding forceps are used for holding suture needles. Common needle holding forceps generally adjust the opening angle of the forceps head through a rotatable forceps handle so as to adapt to different suture needle specifications. The pliers handles often control the pliers heads to open and close through the control pull rods, but in the process, because the pull rods and the shells around the pull rods have installation gaps, the pull rods easily jump in the pulling process, so that the pliers heads are easily driven to jump, the clamping process in the process of adjusting the pliers heads to open and close is unstable, and the efficiency in the process of adjusting the clamping is reduced. For example, china patent application discloses needle holding forceps with adjustable moment [ number 202311868642.9]. The clamp comprises a clamp rod seat, a clamp rod, a first handle and a second handle, wherein one end of the clamp rod is fixedly connected with one end of the clamp rod seat, the first handle and the second handle are respectively hinged to the other end of the clamp rod seat, a pull rod is slidably connected in the clamp rod, a movable clamp head and a fixed clamp head are arranged at one end, far away from the clamp rod seat, of the clamp rod, a transmission mechanism is arranged between the first handle, the second handle and the pull rod and used for transmitting acting force generated when the first handle and the second handle are opened and closed to the clamp head, and a gear adjusting mechanism used for adjusting the distance between the transmission mechanism and the fixed clamp head is arranged on the first handle, the second handle and the pull rod. The application can adjust the torque of the handle and the clamp rod seat to change the stress of the movable clamp head and the fixed clamp head on the suture needle, thereby playing a clamping effect on suture needles of different types and effectively improving the application range of the needle holding clamp. The torque of the handle and the clamp rod seat is regulated by the gear regulating mechanism so as to change the stress of the movable clamp head and the fixed clamp head on the suture needle, thereby playing a role in clamping suture needles of different types. Disclosure of Invention The invention aims to solve the problems and provide a needle holding forceps capable of preventing jumping, so that the forceps head can be kept stable and does not jump when the opening and closing angle is adjusted. The invention comprises a rotatable left clamp handle, a rotatable right clamp handle, a clamp handle connecting assembly, a pull rod, a movable clamp head and a fixed clamp head, wherein the clamp handle connecting assembly is directly/indirectly connected with the pull rod, the movable left clamp handle and the movable right clamp handle can enable the clamp handle connecting assembly to rotate to generate axial linear motion force on the pull rod in a direct/indirect mode, the pull rod pulls the movable clamp head to rotate relative to the fixed clamp head, the pull rod sliding limiting part is connected to one side of the fixed clamp head close to the pull rod, the pull rod is provided with a limiting protrusion, and the limiting protrusion is in sliding connection with the pull rod sliding limiting part in the axial direction of the pull rod and interferes the pull rod to move in the axial direction perpendicular to the pull rod. Preferably, the spacing arch is including the cylinder that runs through the pull rod, spacing casting die is connected in the cylinder both ends, the spout of symmetry along pull rod axial direction is seted up to pull rod slip spacing part, the cylinder passes the spout and makes spacing casting die sliding connection in pull rod slip spacing part outer wall. Preferably, the invention further comprises a clamp handle integration part, wherein the left clamp handle and the right clamp handle are respectively hinged at two ends of the clamp handle integration part. Preferably, the invention further comprises a connecting rod hinging part, the clamp handle connecting assembly comprises a pair of left clamp strips and right clamp strips hinged at the connecting rod hinging part, one ends of the left clamp strips and the right clamp strips are respectively connected with the left clamp handle and the right clamp handle, and the left clamp handle and the right clamp handle are rotated to enable the left clamp strips and the right clamp strips to rotate relatively to push the connecting rod hinging part to linearly displace. Preferably, in order to further improve the convenience of disassembly and improve the general rate of parts, the connecting rod hinge part is detachably