Adjustable needle holder

Abstract

The utility model relates to the technical field of medical instruments, in particular to an adjustable needle holder which comprises a first clamping arm and a second clamping arm, a quick dismounting mechanism is arranged between the first clamping arm and the second clamping arm, and the ends, away from the connecting position, of the first clamping arm and the second clamping arm are both connected with connecting rods in a sliding mode. A holding part is fixed at the other end of the connecting rod; a connecting column between the first clamping arm and the second clamping arm can be quickly pulled out by pushing the clamping block inwards, so that the first clamping arm and the second clamping arm are quickly separated and cleaned, and the connecting rod can be positioned by matching the limiting teeth with the limiting block, so that the connecting rod can be adjusted to different lengths; the clamping forceps can be used more conveniently and safely, and the defects that in the prior art, the two clamping forceps arms are inconvenient to detach for cleaning during use, bacteria are easy to hide, the lengths of the two clamping forceps arms cannot be adjusted and the like are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an adjustable needle holder. Background Art

[0002] Surgical procedures involve numerous instruments and complex procedures, requiring high technical skills. Needle holders are commonly used during surgery, primarily for holding needles for suturing wounds. Due to the complex internal structure of the human body, limited surgical field of view, and cramped operating space, multiple instruments must be used in conjunction with each other during surgery.

[0003] The current needle holder consists of two rotating clamping arm parts, such as the needle holder disclosed in Chinese patent publication number "CN214712660U", which includes a first clamp arm and a second clamp arm, the first clamp arm is divided into a first clamp handle, a first clamp head and a first connecting part, the second clamp arm is divided into a second clamp handle, a second clamp head and a second connecting part, the first connecting part and the second connecting part are hingedly fixed by a pin, the inner clamp surface of the first clamp head is convex, and the inner clamp surface of the second clamp head is concave, the curvature of the convex and concave surfaces are consistent, and the surfaces of the convex and concave surfaces are both provided with tooth patterns.

[0004] The needle holders currently in use are all made of integral metal. First, the rotating head part of the needle holder is fixed, which makes it inconvenient to remove the two clamping arms for cleaning during use, and it is easy to hide bacteria. Second, the length of the two clamping arms cannot be adjusted, which does not fit the operation of medical staff well during use. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art, such as the inconvenience of removing the two clamping arms for cleaning during use, the easy harboring of bacteria, and the inability to adjust the length of the two clamping arms, and to propose an adjustable needle holder.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An adjustable needle holder is designed, comprising a first clamping arm and a second clamping arm, a quick disassembly mechanism being provided between the first clamping arm and the second clamping arm, one end of the first clamping arm and the second clamping arm being slidably connected to a connecting rod away from the connection point, a gripping portion being fixed to the other end of the connecting rod, and an adjustment mechanism being provided between the connecting rod and the first clamping arm and the second clamping arm.

[0008] Furthermore, the quick-detachment mechanism includes a through hole and a connecting column, the through hole is opened on the surface of the first clamping arm and the second clamping arm, the connecting column is passed through the two through holes, annular grooves are opened on the upper and lower sides of the surface of the connecting column, and a sliding groove is opened on the surface of the first clamping arm and the second clamping arm, and a clamping assembly is provided between the sliding groove and the connecting column.

[0009] Furthermore, the clamping assembly includes a guide rod, which is fixed inside the slide groove. The surface of the guide rod is slidably connected to a clamping block, and the clamping block is slidably connected to the slide groove. A semicircular groove is provided on one side of the clamping block, and the semicircular groove is clamped with the annular groove. The surface of the guide rod is sleeved with a first spring, and the two ends of the first spring respectively conflict with the surface of the clamping block and the slide groove.

[0010] Furthermore, a protrusion is provided on the top of the clamping block, and a plurality of anti-slip lines are provided on the surface of the protrusion.

[0011] Furthermore, the adjustment mechanism includes a limit block and a plurality of limit teeth, wherein the plurality of limit teeth are fixed on the surface of the connecting rod, and at least two guide frames are fixed on the surface of the first clamping arm and the second clamping arm, and the limit block is slidably connected between the two guide frames, and side plates are fixed on both sides of the limit block, and a second spring is provided on the inner side of the guide frame and the two ends of the second spring are respectively in conflict with the side plate and the guide frame, and the limit block passes through the first clamping arm and the second clamping arm and is engaged with the limit teeth.

[0012] Furthermore, positioning parts with staggered distribution are provided on the opposite inner sides of the two gripping parts, and the positioning parts are clamped by means of latching teeth.

[0013] The utility model proposes an adjustable needle holder, which has the beneficial effect that: the utility model can quickly pull out the connecting column between the first clamping arm and the second clamping arm by pushing the clamping block inward, thereby quickly separating and cleaning the first clamping arm and the second clamping arm; the connecting rod can be positioned by the limiting teeth and the limiting block, so that it can be adjusted to different lengths, which is more convenient and safer when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0016] Figure 3 It is a three-dimensional schematic diagram of the local structure of the utility model;

[0017] Figure 4 For this utility model Figure 1 A partial enlarged view of point A in the middle;

[0018] Figure 5 For this utility model Figure 3 A partial enlarged view of point B in the middle.

[0019] In the figure: 1. First clamping arm; 2. Second clamping arm; 3. Quick disassembly mechanism; 31. Through hole; 32. Connecting column; 33. Annular groove; 34. Slide groove; 4. Connecting rod; 5. Holding portion; 6. Adjusting mechanism; 61. Limiting block; 62. Limiting teeth; 63. Guide frame; 64. Side plate; 65. Second spring; 7. Clamping assembly; 71. Guide rod; 72. Clamping block; 73. Semicircular groove; 74. First spring; 8. Protrusion; 9. Positioning portion. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-5 , an adjustable needle holder, comprising a first clamping arm 1 and a second clamping arm 2, a quick disassembly mechanism 3 is provided between the first clamping arm 1 and the second clamping arm 2, the first clamping arm 1 and the second clamping arm 2 are both slidably connected to a connecting rod 4 at one end away from the connection, the other end of the connecting rod 4 is fixed with a gripping portion 5, and an adjustment mechanism 6 is provided between the connecting rod 4 and the first clamping arm 1 and the second clamping arm 2; the needle holder can quickly pull out the connecting column 32 between the first clamping arm 1 and the second clamping arm 2 by pushing the clamping block 72 inward, thereby quickly separating and cleaning the first clamping arm 1 and the second clamping arm 2, and the connecting rod 4 can be positioned by cooperating with the limit tooth 62 and the limit block 61, so that it can be adjusted to different lengths, which can be more convenient and safe when used.

[0022] In this embodiment, the quick disassembly mechanism 3 includes a through hole 31 and a connecting column 32. The through hole 31 is opened on the surface of the first clamping arm 1 and the second clamping arm 2. The two through holes 31 need to be aligned during installation to facilitate the passage of the connecting column 32. The connecting column 32 is arranged between the two through holes 31. Annular grooves 33 are opened on the upper and lower sides of the surface of the connecting column 32. Slide grooves 34 are opened on the surfaces of the first clamping arm 1 and the second clamping arm 2. A clamping assembly 7 is provided between the slide groove 34 and the connecting column 32. The connecting column 32 can connect the first clamping arm 1 and the second clamping arm 2 for easy combined installation.

[0023] The lock body 71 is fixed on the upper surface of the lock body 71, and the lock body 72 is fixed on the lower surface of the lock body 71. The lock body 72 is fixed on the lower surface of the lock body 71, and the lock body 72 is fixed on the lower surface of the lock body 71.

[0024] Furthermore, a protrusion 8 is provided on the top of the clamping block 72, and a plurality of anti-skid patterns are provided on the surface of the protrusion 8. The protrusion 8 can fit the hand, and the anti-skid patterns can increase friction.

[0025] In addition, the adjustment mechanism 6 includes a limit block 61 and a number of limit teeth 62, and the number of limit teeth 62 is fixed to the surface of the connecting rod 4. At least two guide frames 63 are fixed on the surface of the first clamping arm 1 and the second clamping arm 2. The limit block 61 is slidably connected between the two guide frames 63. Side plates 64 are fixed on both sides of the limit block 61. A second spring 65 is provided on the inner side of the guide frame 63 and the two ends of the second spring 65 are respectively in conflict with the side plate 64 and the guide frame 63. The limit block 61 passes through the first clamping arm 1 and the second clamping arm 2 and is engaged with the limit teeth 62. The limit block 61 can be engaged between the limit teeth 62 to position and limit the connecting rod 4, thereby facilitating length adjustment.

[0026] It should be noted that the two gripping parts 5 are provided with staggered positioning parts 9 on the opposite inner sides. The positioning parts 9 are clamped with latch teeth. The positioning parts 9 can be clamped and positioned with each other, which is convenient for limiting the gripping part 5.

[0027] Working method: When using the needle holder, the staff needs to insert the thumb and middle finger into the fixed ring on the gripping part 5, and then control the force to use the first clamping arm 1 and the second clamping arm 2 to hold the needle. When the first clamping arm 1 and the second clamping arm 2 need to be separated, the staff uses their fingers to press the clamping block 72 at the same time and push it to one side. The clamping block 72 squeezes the first spring 74. The clamping block 72 disengages from the annular groove 33 on the surface of the connecting column 32, and the connecting column 32 can be pulled out from between the first clamping arm 1 and the second clamping arm 2. After being pulled out, the first clamping arm 1 and the second clamping arm 2 can be separated. The operation can be reversed during installation. When adjusting the length of the gripping part 5, the staff needs to pull up the limit block 61, and the limit block 61 squeezes the second spring 65. After the limit block 61 disengages from the limit tooth 62, the gripping part 5 can be moved to adjust the length.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable needle holder, comprising a first clamping arm (1) and a second clamping arm (2), characterized in that: A quick-detachment mechanism (3) is provided between the first clamping arm (1) and the second clamping arm (2); one end of the first clamping arm (1) and the second clamping arm (2) away from the connection point is slidably connected to a connecting rod (4); a gripping portion (5) is fixed to the other end of the connecting rod (4); and an adjustment mechanism (6) is provided between the connecting rod (4) and the first clamping arm (1) and the second clamping arm (2).

2. The adjustable needle holder according to claim 1, characterized in that: The quick disassembly mechanism (3) includes a through hole (31) and a connecting column (32), wherein the through hole (31) is provided on the surface of the first clamping arm (1) and the second clamping arm (2), and the connecting column (32) is passed through the two through holes (31). Annular grooves (33) are provided on the upper and lower sides of the surface of the connecting column (32), and a sliding groove (34) is provided on the surface of the first clamping arm (1) and the second clamping arm (2), and a clamping assembly (7) is provided between the sliding groove (34) and the connecting column (32).

3. The adjustable needle holder according to claim 2, characterized in that: The clamping assembly (7) includes a guide rod (71), the guide rod (71) is fixed inside the slide groove (34), the surface of the guide rod (71) is slidably connected to a clamping block (72), and the clamping block (72) is slidably connected to the slide groove (34), a semicircular groove (73) is opened on one side of the clamping block (72), and the semicircular groove (73) is clamped with the annular groove (33), the surface of the guide rod (71) is sleeved with a first spring (74), and the two ends of the first spring (74) are respectively in contact with the surfaces of the clamping block (72) and the slide groove (34).

4. The adjustable needle holder according to claim 3, characterized in that: A protrusion (8) is provided on the top of the clamping block (72), and a surface of the protrusion (8) is provided with a plurality of anti-slip lines.

5. The adjustable needle holder according to claim 1, characterized in that: The regulating mechanism (6) comprises a limit block (61) and a plurality of limit teeth (62), wherein the plurality of limit teeth (62) are fixed on the surface of the connecting rod (4), and at least two guide frames (63) are fixed on the surface of the first clamping arm (1) and the second clamping arm (2), and the limit block (61) is slidably connected between the two guide frames (63). Side plates (64) are fixed on both sides of the limit block (61), and a second spring (65) is provided on the inner side of the guide frame (63), and the two ends of the second spring (65) are respectively in contact with the side plates (64) and the guide frame (63), and the limit block (61) passes through the first clamping arm (1) and the second clamping arm (2) and is engaged with the limit teeth (62).

6. The adjustable needle holder according to claim 5, characterized in that: Positioning portions (9) with staggered distribution are provided on the opposite inner sides of the two gripping portions (5), and the positioning portions (9) are clamped by means of clamping teeth.

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