A needle holder

Abstract

The present invention discloses a needle holder, comprising a shell seat, a fixing clamp is fixed on the front end of the shell seat, a fixing rod is fixed on the diagonal rear end of the shell seat, and a through slot is provided on the inner side of the shell seat; a movable rod passes through the inner side of the through slot, and the movable rod is hinged to the shell seat through a first hinge column, and a movable clamp pressed with the fixing clamp is fixed on the front end of the movable rod; semicircular grooves corresponding to each other are provided on the fixed clamp and the movable clamp along the thickness direction, and inner frame grooves are provided on the inner sides of the semicircular grooves of the fixed clamp and the movable clamp; a finger clamp is fixed on the rear ends of the fixed rod and the movable rod; a clamping jaw assembly is provided on the inner side of the inner frame groove of the movable clamp, and the clamping jaw assembly comprises a bracket with a right-angle structure, and a C-shaped clamping jaw is fixed on one end of the bracket. The needle holder of the present invention can be clamped and adjusted for suture needles of different thicknesses, and can ensure the tight clamping of fingers and the needle holder during clamping.

Description

Technical Field

[0001] The invention specifically relates to a needle holder, and belongs to the technical field of ophthalmic surgical instruments. Background Art

[0002] The needle holder is one of the indispensable devices in ophthalmic surgery. Medical staff use the needle holder to clamp the suture needle to perform ophthalmic surgery on the patient. The traditional needle holder device is not perfect. It does not have a clamping facility that can adjust the thickness of the suture needle, which is troublesome. Therefore, a needle holder is designed to be able to clamp and adjust suture needles of different thicknesses, so that medical staff can use the device to clamp the suture needle, providing convenience for medical staff; in the prior art, such as Chinese patent CN213489758U, an ophthalmic surgery device is disclosed. The invention discloses a surgical needle holder, which is convenient for clamping the suture needle by its own squeezing force, is easy to operate, and reduces the difficulty of work for medical staff. At the same time, the pulling force of the reset spring is used to increase the squeezing force between the first rubber clamp seat and the second rubber clamp seat, thereby improving the clamping force of the suture needle. However, the above structure mainly considers the ability to improve the clamping force of the suture needle. The traditional device only has a fixed clamping device and does not have a clamping facility that can adjust the thickness of the suture needle, resulting in that the device can only clamp the corresponding suture needle, and the clamping versatility is not strong. Summary of the invention

[0003] To solve the above problems, the present invention proposes a needle holder which adopts a double-headed bending structure and can clamp and adjust suture needles of different thicknesses, so that medical staff can use the device to clamp the suture needles, providing convenience for medical staff.

[0004] The needle holder of the present invention comprises a shell seat, a fixing clamp is fixed on the front end of the shell seat, a fixing rod is fixed on the diagonal rear end of the shell seat, and a through groove is provided on the inner side of the shell seat; a movable rod passes through the inner side of the through groove, and the movable rod is hinged to the shell seat through a first hinge column, and a movable clamp pressed with the fixing clamp is fixed on the front end of the movable rod; the fixing clamp and the movable clamp are provided with semicircular grooves corresponding to each other along the thickness direction, and the fixing clamp and the movable clamp are provided with inner frame grooves on the inner sides of the semicircular grooves; a finger clamp is fixed on the rear ends of the fixing rod and the movable rod; the movable clamp is provided with a clamping claw assembly on the inner side of the inner frame groove, and the clamping claw assembly comprises a bracket of a right-angle structure, a C-shaped clamping claw is fixed on one end of the bracket, and a connecting column is hinged on the other end of the bracket through a short bolt; the bracket is hinged to the inner side of the inner frame groove through a center column near the hinged end, and the clamping claw movably extends to the inner side of the inner frame groove of the fixing clamp; the other end of the connecting column is embedded and fixed to the inner side of the fixing clamp.

[0005] Furthermore, a group of top blocks are fixed opposite to the inner sides of the rear ends of the fixed rod and the movable rod.

[0006] Furthermore, the finger clamp includes an open outer finger ring, one end of which is provided with a C-shaped groove, and a hollow block is fixed on the top of the other end of the outer finger ring; a bolt is movably arranged on the inside of the hollow block; an open inner finger ring is hinged on the inside of the C-shaped groove through a second hinge rod; a spring is fixed between the outer side of one end of the inner finger ring and the inner side of the outer finger ring; and a screw hole block screwed to the bolt is fixed on the other end of the inner finger ring.

[0007] Furthermore, the movable rod is a Z-shaped right-angle rod body.

[0008] Furthermore, the fixed clamp and the movable clamp are of pointed structure.

[0009] Furthermore, the clamping process of the finger clamp is as follows:

[0010] When in use, take out the bolt and insert the finger into the inner side of the inner finger ring, so that under the action of external force, the inner finger ring is supported by the outer finger ring and rotates around the second hinged rod as the center, so that the spring is supported by the outer finger ring and uses the elastic force to push the inner finger ring to apply pressure to the medical staff's finger. The medical staff puts the bolt through the hollow block to correspond to the position of the screw hole of the screw hole block, and presses the inner finger ring on the finger by screwing in the bolt, so that the inner finger ring and the outer finger ring support the fixed rod and the movable rod, so that the medical staff can prevent the needle holder from falling off the medical staff's fingers when performing ophthalmic surgery on the patient.

[0011] Furthermore, the working process of the needle holder is as follows: the medical staff controls the movement of the fixed rod and the movable rod through the finger clamp, so that the movable rod drives the movable clamp to rotate around the first hinged column under the support of the shell seat, so that the movable clamp can be opened, and under the action of external force, the fixed clamp pulls the connecting rod, so that the connecting rod drives the bracket to rotate around the center column under the support of the movable clamp through the short bolt. At the same time, the bracket rotates around the short bolt, so that the claw moves out of the inside of the fixed clamp. The medical staff places the suture needle between the fixed clamp and the claw, and controls the movable clamp to clamp the suture needle through the fixed rod and the movable rod, so that the medical staff can easily clamp suture needles of different thicknesses by using this device during ophthalmic surgery.

[0012] Compared with the prior art, the needle holder of the present invention can be adjusted for clamping suture needles of different thicknesses, and can ensure that the fingers and the needle holder are tightly clamped during clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A.

[0015] Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point B.

[0016] Figure 4 is a three-dimensional diagram of a clamping jaw assembly of the present invention;

[0017] Figure 5 It is a schematic diagram of the inner structure of the fixing clip of the present invention;

[0018] Figure 6 It is a schematic diagram of the inner structure of the movable clamp of the present invention;

[0019] Figure 7 It is a structural schematic diagram of the finger ring of the present invention. DETAILED DESCRIPTION

[0020] Embodiment 1:

[0021] like Figure 1 and Figure 2 The needle holder shown in the figure comprises a shell base 2, a fixing clamp 3 is fixed to the front end of the shell base 2, a fixing rod 1 is fixed to the diagonal rear end of the shell base 2, and a through slot 21 is provided on the inner side of the shell base 2; a movable rod 4 passes through the inner side of the through slot 21, and the movable rod 4 is hinged to the shell base 2 through a first hinge column 201, and a movable clamp 401 pressed with the fixing clamp 3 is fixed to the front end of the movable rod 4; the fixing clamp 3 and the movable clamp 401 are provided with semicircular grooves 31 aligned with each other along the thickness direction, and the fixing clamp 3 and the movable clamp 401 are provided with inner frame grooves 301 on the inner side of the semicircular grooves; Finger clamps are fixed to the rear ends of the fixed rod 1 and the movable rod 4; the movable clamp 401 is provided with a clamping claw assembly on the inner side of the inner frame groove 301, and the clamping claw assembly includes a bracket 502 with a right-angle structure, a C-shaped clamping claw 504 is fixed at one end of the bracket 502, and the other end of the bracket 502 is hinged to a connecting column 5 through a short bolt 501; the bracket 502 is hinged to the inner side of the inner frame groove 301 through a central column 503 near the hinged end, and the clamping claw 504 is movably extended to the inner side of the inner frame groove 301 of the fixed clamp 3; the other end of the connecting column 5 is embedded and fixed to the inner side of the fixed clamp 3.

[0022] Among them, a group of top blocks 101 are fixed to the inner side of the rear ends of the fixed rod 1 and the movable rod 4. The finger clamp includes an open outer finger ring 6, one end of which is provided with a C-shaped groove body, and a hollow block 603 is fixed to the top of the other end of the outer finger ring 6; a bolt 604 is movably arranged inside the hollow block 603; an open inner finger ring 605 is hinged inside the C-shaped groove body through a second hinge rod 602; a spring 601 is fixed between the outer side of one end of the inner finger ring 605 and the inner side of the outer finger ring 6; a screw hole block 606 screwed with the bolt is fixed to the other end of the inner finger ring 605. The movable rod 4 is a Z-shaped right-angle rod body. The fixed clamp 3 and the movable clamp 401 are pointed structures.

[0023] The clamping process of the finger clamp is as follows: when in use, take out the bolt and insert the finger into the inner side of the inner finger ring, so that under the action of external force, the inner finger ring is supported by the outer finger ring and rotates around the second hinged rod as the center, so that the spring is supported by the outer finger ring and uses the elastic force to push the inner finger ring to apply pressure to the medical staff's finger. The medical staff puts the bolt through the hollow block to correspond to the position of the screw hole of the screw hole block, and presses the inner finger ring on the finger by screwing in the bolt, so that the inner finger ring and the outer finger ring support the fixed rod and the movable rod, so that the medical staff can prevent the needle holder from falling off the medical staff's fingers when performing ophthalmic surgery on the patient.

[0024] The working process of the needle holder is as follows: the medical staff controls the movement of the fixed rod and the movable rod through the finger clamp, so that the movable rod drives the movable clamp to rotate around the first hinged column under the support of the shell seat, so that the movable clamp can be opened, and under the action of external force, the fixed clamp pulls the connecting rod, so that the connecting rod drives the bracket to rotate around the center column under the support of the movable clamp through the short bolt. At the same time, the bracket rotates around the short bolt, so that the clamp moves out of the inside of the fixed clamp. The medical staff places the suture needle between the fixed clamp and the clamp, and controls the movable clamp to clamp the suture needle through the fixed rod and the movable rod. Therefore, the medical staff can easily clamp suture needles of different thicknesses by using this device during ophthalmic surgery.

[0025] The above embodiments are only preferred implementations of the present invention, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A needle holder, characterized in that: The cam is an assembly of a plurality of movable members, each of which is connected to a pair of movable members, and the movable members are connected to the pair of movable members by a plurality of movable members. The finger clamp includes an open outer finger ring, one end of which is provided with a C-shaped groove body, and a hollow block is fixed on the top of the other end of the outer finger ring; a bolt is movably arranged on the inner side of the hollow block; an open inner finger ring is hingedly connected to the inner side of the C-shaped groove body through a second hinge rod; a spring is fixed between the outer side of one end of the inner finger ring and the inner side of the outer finger ring; and a screw hole block screwed to the bolt is fixed on the other end of the inner finger ring.

2. The needle holder according to claim 1, characterized in that: A group of top blocks are fixed opposite to the inner sides of the rear ends of the fixed rod and the movable rod.

3. The needle holder according to claim 1, characterized in that: The movable rod is a Z-shaped right-angle rod body.

4. The needle holder according to claim 1, characterized in that: The fixed clamp and the movable clamp are in a pointed structure.

5. The needle holder according to claim 1, characterized in that: The finger gripper gripping process is as follows: When in use, take out the bolt and insert the finger into the inner side of the inner finger ring, so that under the action of external force, the inner finger ring is supported by the outer finger ring and rotates around the second hinged rod as the center, so that the spring is supported by the outer finger ring and uses the elastic force to push the inner finger ring to apply pressure to the medical staff's finger. The medical staff puts the bolt through the hollow block to correspond to the position of the screw hole of the screw hole block, and presses the inner finger ring on the finger by screwing in the bolt, so that the inner finger ring and the outer finger ring support the fixed rod and the movable rod, so that the medical staff can prevent the needle holder from falling off the medical staff's fingers when performing ophthalmic surgery on the patient.

6. The needle holder according to claim 1, characterized in that: The working process of the needle holder is as follows: the medical staff controls the movement of the fixed rod and the movable rod through the finger clamp, so that the movable rod drives the movable clamp to rotate around the first hinged column under the support of the shell seat, so that the movable clamp can be opened, and under the action of external force, the fixed clamp pulls the connecting rod, so that the connecting rod drives the bracket to rotate around the center column under the support of the movable clamp through the short bolt. At the same time, the bracket rotates around the short bolt, so that the clamp moves out of the inside of the fixed clamp. The medical staff places the suture needle between the fixed clamp and the clamp, and controls the movable clamp to clamp the suture needle through the fixed rod and the movable rod. Therefore, the medical staff can easily clamp suture needles of different thicknesses by using this device during ophthalmic surgery.

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