A needle holder

Abstract

The embodiment of the present disclosure provides a needle holder, comprising a damping structure, a first locking buckle, a second locking buckle, a fixed holding rod with a first clamping part and a first holding part fixedly connected at two ends, a movable push rod with a second clamping part and a second holding part fixedly connected at two ends; the fixed holding rod and the movable push rod are cross arranged and rotatably connected at one side close to each other; the damping structure is integrally arranged on the fixed holding rod and the movable push rod; the first locking buckle and the second locking buckle are arranged on the fixed holding rod and the movable push rod respectively; when the needle holder is in a relaxed state, the locking teeth of the first locking buckle and the second locking buckle are separated from each other; when the needle holder is in a locked state, the locking teeth of the first locking buckle and the second locking buckle are engaged with each other. The needle holder of the embodiment of the present disclosure can effectively avoid the situation that the needle holder is accidentally loosened during the operation to cause the suture needle to be lost, and reduce the risk of operation when the needle holder is in the locked state.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of biomedical technology, specifically relating to a needle holder. Background Technology

[0002] In surgery, the needle holder is an indispensable routine surgical instrument. By holding the suture needle with the needle holder, doctors can perform very delicate surgical operations and complete highly difficult surgical tasks.

[0003] With the development of medical technology, existing treatment methods and treatable diseases are constantly being updated. Along with the improvement of living standards and increased awareness of disease diagnosis and treatment among domestic residents, the number of surgeries performed in hospitals each year is also rising. Consequently, the number of surgical complications is also increasing, with cases of lost suture needles held by medical needle holders showing a rising trend, which greatly increases surgical risks. Utility Model Content

[0004] The embodiments disclosed herein are intended to at least address one of the technical problems existing in the prior art, and to provide a needle holder.

[0005] Embodiments of this disclosure provide a needle holder, the needle holder comprising:

[0006] A fixed holding rod is fixedly connected to a first clamping part and a first gripping part at its two ends respectively;

[0007] The movable push rod has a second clamping part and a second gripping part fixedly connected to its two ends respectively; the fixed holding rod and the movable push rod are arranged crosswise and close to each other on one side and can be rotatably connected.

[0008] A shock-absorbing structure is integrally formed on the fixed holding rod and the movable push rod to reduce the impact force on the needle holder when it falls.

[0009] The first locking tooth and the second locking tooth are respectively disposed on the fixed holding rod and the movable push rod; when the needle holder is in the relaxed state, the locking teeth of the first locking tooth and the second locking tooth are separated from each other; when the needle holder is in the locked state, the locking teeth of the first locking tooth and the second locking tooth are engaged and locked together.

[0010] Optionally, the movable push rod is rotatably connected to the fixed holding rod via a rotating shaft;

[0011] The first clamping part and the second clamping part cooperate to clamp the suture needle, and the first gripping part and the second gripping part are used to grip and control the needle holder to switch between the relaxed state and the locked state.

[0012] Optionally, the locking tooth meshing surfaces of the first locking tooth and the second locking tooth are parallel to the axial direction of the rotating shaft, and the length direction of the locking teeth of the first locking tooth and the second locking tooth is perpendicular to the axial direction of the rotating shaft.

[0013] By controlling the fixed holding rod and the movable push rod to move alternately along the axial direction of the rotation axis, the locking teeth of the first locking tooth buckle and the second locking tooth buckle can be separated from each other or engaged and locked together.

[0014] Optionally, the length of the locking teeth of the first locking tooth and the second locking tooth is greater than their height, so that the travel distance of the locking teeth of the first locking tooth and the second locking tooth along their length direction is greater than the travel distance along their height direction.

[0015] in,

[0016] The height direction of the locking teeth is parallel to the axial direction of the rotation axis.

[0017] Optionally, the locking teeth of both the first and second locking teeth are made of elastic material, and the locking teeth of the first and second locking teeth are elastically clearance-fitted.

[0018] Optionally, the damping structure is a C-type damping structure, which is arranged in a mirror-symmetrical manner on the fixed support rod and the movable push rod.

[0019] Optionally, the needle holder further includes a silicone shock-absorbing sleeve that wraps around the outer periphery of the first grip portion and the second grip portion.

[0020] Optionally, both the first grip portion and the second grip portion have an annular structure, and the silicone shock-absorbing sleeve is made of medical-grade silicone material.

[0021] Optionally, both the first locking tooth and the second locking tooth include a connecting portion and locking teeth;

[0022] One end of the connecting part is connected to the corresponding fixed holding rod or the movable push rod, and the other end is connected to the corresponding locking tooth.

[0023] Optionally, the fixed holding rod, the first clamping part, the first gripping part, the movable push rod, the second clamping part, the second gripping part, the shock-absorbing structure, and the connecting part are all made of metal materials.

[0024] The needle holder of the present disclosure, through the fixed holding rod, movable push rod, shock-absorbing structure, first locking tooth and second locking tooth, can effectively prevent the needle holder from accidentally loosening during surgery and causing the suture needle to be lost when the needle holder is in the locked state, thereby reducing surgical risks. Attached Figure Description

[0025] Figure 1 This is a front view of a needle holder in a locked state according to an embodiment of the present disclosure;

[0026] Figure 2 This is an isometric view of a needle holder in a locked state according to an embodiment of the present disclosure;

[0027] Figure 3 This is a side view of a needle holder in a locked state according to an embodiment of the present disclosure. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 3 As shown, a needle holder 100 includes a fixed holding rod 110, a movable push rod 120, a shock-absorbing structure 130, a first locking tooth 140, and a second locking tooth 150. A first clamping portion 111 and a first gripping portion 112 are fixedly connected to both ends of the fixed holding rod 110. A second clamping portion 121 and a second gripping portion 122 are fixedly connected to both ends of the movable push rod 120. The fixed holding rod 110 and the movable push rod 120 are arranged crosswise and are rotatably connected on their closest sides.

[0030] The shock-absorbing structure 130 is integrally formed on the fixed holding rod 110 and the movable push rod 120 to reduce the impact force on the needle holder 100 when it falls. The first locking tooth 140 and the second locking tooth 150 are respectively provided on the fixed holding rod 110 and the movable push rod 120. When the needle holder 100 is in the relaxed state, the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 are separated from each other. When the needle holder 100 is in the locked state, the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 are engaged and locked together.

[0031] Specifically, such as Figures 1 to 3As shown, the needle holder 100 is scissor-shaped. When the needle holder 100 is in the relaxed state, the locking teeth 200 of the first locking buckle 140 and the second locking buckle 150 are separated, and the first clamping part 111 and the second clamping part 121 are also separated. By manipulating the first gripping part 112 and the second gripping part 122, the first clamping part 111 and the second clamping part 121 can be closed, so that the first clamping part 111 and the second clamping part 121 can clamp the suture needle. At this time, by continuing to manipulate the first gripping part 112 and the second gripping part 122, the locking teeth 200 of the first locking buckle 140 and the second locking buckle 150 are engaged and locked, and the needle holder 100 is in the locked state. The needle holder 100 in the locked state can maintain the state of clamping the suture needle, so that even if the needle holder 100 is accidentally dropped, it can still hold the suture needle.

[0032] The fixed holding rod 110 and the movable push rod 120 are respectively provided with shock-absorbing structures 130. The shock-absorbing structures 130 can further reduce the impact force on the needle holder when it falls, further reduce the impact on the first locking tooth 140 and the second locking tooth 150, and prevent the locking tooth 200 from popping open.

[0033] The needle holder of the present disclosure, through the fixed holding rod, movable push rod, shock-absorbing structure, first locking tooth and second locking tooth, can effectively prevent the needle holder from accidentally loosening during surgery and causing the suture needle to be lost when the needle holder is in the locked state, thereby reducing surgical risks.

[0034] It is easy to understand that the first locking tooth 140 and the fixed holding rod 110 are a whole, and the second locking tooth 150 and the movable push rod 120 are a whole. The first locking tooth 140 and the second locking tooth 150 can be opened and closed by their own structure and the elastic deformation of the material.

[0035] For example, such as Figures 1 to 3 As shown, the movable push rod 120 is rotatably connected to the fixed holding rod 110 via a rotating shaft 160. The first clamping part 111 and the second clamping part 121 cooperate to clamp the suture needle (not shown in the figure), and the first gripping part 112 and the second gripping part 122 are used to grip and control the needle holder 100 to switch between the relaxed state and the locked state.

[0036] Furthermore, the meshing surfaces of the locking teeth 200 of the first locking teeth 140 and the second locking teeth 150 are parallel to the axial direction of the rotating shaft 160, and the length direction of the locking teeth 200 of the first locking teeth 140 and the second locking teeth 150 is perpendicular to the axial direction of the rotating shaft 160.

[0037] By controlling the fixed holding rod 110 and the movable push rod 120 to move alternately along the axial direction of the rotating shaft 160, the locking teeth 200 of the first locking tooth buckle 140 and the second locking tooth buckle 150 can be separated from each other or engaged and locked.

[0038] Specifically, such as Figures 1 to 3 As shown, the relaxed and locked states of the needle holder 100 are achieved by manipulating the first gripping part 112 and the second gripping part 122. When the fixed holding rod 110 and the movable push rod 120 move alternately along the axial direction of the rotation axis 160, the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 can be separated or engaged and locked. The meshing surfaces of the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 are parallel to the axial direction of the rotation axis 160, and the length direction of the locking teeth 200 is perpendicular to the axial direction of the rotation axis 160.

[0039] For example, such as Figures 1 to 3 As shown, the length of the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 is greater than their height, such that the distance the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 separate along their length direction is greater than the distance they separate along their height direction. The height direction of the locking teeth 200 is parallel to the axial direction of the rotation shaft 160.

[0040] Specifically, such as Figure 1 As shown, when the needle holder is accidentally dropped, the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 have a large separation stroke in the left and right directions, which can effectively prevent the locking teeth 200 from separating along their length direction when the needle holder is dropped.

[0041] Furthermore, the locking teeth 200 of both the first locking tooth 140 and the second locking tooth 150 are made of elastic material, and the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150 are elastically spaced. This arrangement enhances the locking force between the locking teeth 200 of the first locking tooth 140 and the second locking tooth 150. When the needle holder 100 is in the locked state, if the needle holder falls, the locking teeth 200 can withstand a greater force along their height direction without separating, thus maintaining a locked state.

[0042] For example, such as Figure 1 and Figure 2As shown, the shock-absorbing structure 130 is a C-shaped shock-absorbing structure, which is mirror-symmetrically arranged on the fixed holding rod 110 and the movable push rod 120. When the needle holder falls, the impact force it receives can be buffered and released by the C-shaped shock-absorbing structure, thereby reducing the impact force on the first locking tooth 140 and the second locking tooth 150. As an example, the first locking tooth 140 is located between the first grip 112 and the corresponding shock-absorbing structure 130, and the second locking tooth 150 is located between the second grip 122 and the corresponding shock-absorbing structure 130. Furthermore, the rotating shaft 160 is located on the side of the shock-absorbing structure 130 away from the corresponding grip.

[0043] Furthermore, the needle holder 100 also includes a silicone shock-absorbing sleeve 170, which wraps around the outer periphery of the first grip portion 112 and the second grip portion 122. The silicone shock-absorbing sleeve 170 absorbs some of the impact force when the needle holder falls, further weakening the impact force transmitted to the first locking teeth 140 and the second locking teeth 150, thereby further preventing the locking teeth 200 from separating upon fall.

[0044] For example, such as Figures 1 to 3 As shown, both the first gripping part 112 and the second gripping part 122 are annular structures, and the silicone shock-absorbing sleeve 170 is made of medical-grade silicone material. During operation, fingers can be inserted into the corresponding annular gripping parts to control the needle holder, gripping the suture needle and locking it into a locked state. It is easy to understand that to lock the needle holder, the finger needs to apply considerable force to make the locking teeth 200 interlock and lock, thus securing the suture needle. However, the impact force from a typical drop is much less than the separation force required to separate the locking teeth 200. To return the needle holder to a relaxed state, the finger needs to control the needle holder and apply considerable separation force to make the locking teeth separate.

[0045] Furthermore, both the first locking tooth 140 and the second locking tooth 150 include a connecting portion 300 and a locking tooth 200. One end of the connecting portion 300 is connected to the corresponding fixed holding rod 110 or the movable push rod 120, and the other end is connected to the corresponding locking tooth 200. The connecting portion 300 can provide the corresponding locking tooth 200 with locking force and separation force.

[0046] Furthermore, the fixed holding rod 110, the first clamping part 111, the first gripping part 112, the movable push rod 120, the second clamping part 121, the second gripping part 122, the shock-absorbing structure 130, and the connecting part 300 are all made of metal materials. For example, biosafe metal materials such as stainless steel, titanium alloy, and magnesium alloy can be used, which have good strength and hardness. The silicone shock-absorbing sleeve 170 is made of medical-grade silicone material, and the locking teeth 200 can be made of medical-grade elastic material, both of which have good elasticity. The rotating shaft 160 can also be made of biosafe metal materials such as stainless steel, titanium alloy, and magnesium alloy. With this configuration, the entire needle holder 100 can be sterilized at high temperatures.

[0047] It should be noted that the needle holder 100 has universality due to its symmetrical structure design. It can be operated with either hand without distinguishing between left and right hands, and can cover more usage habits and scenarios.

[0048] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A needle holder characterized by, The needle holder includes: A fixed holding rod is fixedly connected to a first clamping part and a first gripping part at its two ends respectively; The movable push rod has a second clamping part and a second gripping part fixedly connected to its two ends respectively; the fixed holding rod and the movable push rod are arranged crosswise and close to each other on one side and can be rotatably connected. A shock-absorbing structure is integrally formed on the fixed holding rod and the movable push rod to reduce the impact force on the needle holder when it falls. The first locking tooth and the second locking tooth are respectively disposed on the fixed holding rod and the movable push rod; when the needle holder is in the relaxed state, the locking teeth of the first locking tooth and the second locking tooth are separated from each other; when the needle holder is in the locked state, the locking teeth of the first locking tooth and the second locking tooth are engaged and locked together.

2. The needle holder of claim 1, wherein, The movable push rod is rotatably connected to the fixed holding rod via a rotating shaft; The first clamping part and the second clamping part cooperate to clamp the suture needle, and the first gripping part and the second gripping part are used to grip and control the needle holder to switch between the relaxed state and the locked state.

3. The needle holder of claim 2, wherein, The locking tooth meshing surfaces of the first locking tooth and the second locking tooth are parallel to the axial direction of the rotating shaft, and the length direction of the locking teeth of the first locking tooth and the second locking tooth is perpendicular to the axial direction of the rotating shaft. By controlling the fixed holding rod and the movable push rod to move alternately along the axial direction of the rotation axis, the locking teeth of the first locking tooth buckle and the second locking tooth buckle can be separated from each other or engaged and locked together.

4. The needle holder of claim 3, wherein, The length of the locking teeth of the first and second locking teeth is greater than their height, such that the distance the locking teeth of the first and second locking teeth travel along their length direction is greater than the distance they travel along their height direction; wherein, The height direction of the locking teeth is parallel to the axial direction of the rotation axis.

5. Needle holder according to any one of claims 1 to 4, characterized in that The locking teeth of both the first and second locking teeth are made of elastic material, and the locking teeth of the first and second locking teeth are elastically clearance-fitted.

6. The needle holder of any one of claims 1 to 4, wherein, The damping structure is a C-type damping structure, which is set in a mirror-symmetrical manner on the fixed support rod and the movable push rod.

7. The needle holder of any one of claims 1 to 4, wherein, The needle holder also includes a silicone shock-absorbing sleeve that wraps around the outer periphery of the first grip portion and the second grip portion.

8. The needle holder of claim 7, wherein, Both the first grip portion and the second grip portion have an annular structure, and the silicone shock-absorbing sleeve is made of medical-grade silicone material.

9. The needle holder of any one of claims 1 to 4, wherein, Both the first locking tooth and the second locking tooth include a connecting part and locking teeth; One end of the connecting part is connected to the corresponding fixed holding rod or the movable push rod, and the other end is connected to the corresponding locking tooth.

10. The needle holder of claim 9, wherein, The fixed holding rod, the first clamping part, the first gripping part, the movable push rod, the second clamping part, the second gripping part, the shock-absorbing structure, and the connecting part are all made of metal materials.

Images