Holding type needle holder

Abstract

A holding type needle holder comprises a needle holding component, a handle component, a driving component and a rotary button. The rotary button can drive the needle holding component to rotate by 360 degrees; the driving part comprises a percussion button and a driving rod, and when the percussion button is pulled, the percussion button pushes the driving rod to swing and drives the needle holding part to drive the suture needle part to rotate and operate; the needle holding component comprises a percussion rod, a driving ring and a first compression spring, the driving ring and the first compression spring are fixed after being arranged on the percussion rod in a sleeving mode from the near end, a limiting table is arranged on the percussion rod, the limiting table limits the driving ring to move towards the far end, the first compression spring achieves pre-compression on the driving ring, and the first compression spring can release force continuously applied to a percussion button. By means of the structure, the hand burden of a doctor can be relieved, angle rotation of the needle holder is flexible, tissue damage can be avoided, and operation safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, in particular to a holding needle holder. BACKGROUND

[0002] Suturing is an important surgical basic operation technique to close or reconstruct the channel of the tissue or organ that has been incised or ruptured, so as to restore its function. Different tissues and organs in different parts need to be sutured in different ways to ensure good healing effect. The basic requirements of suturing technique include ensuring good coaptation of sutured wound or incision, paying attention to the tension of sutured part, selecting appropriate suture line and suture needle and suture needle control instrument such as needle holder.

[0003] The needle holder plays a crucial role in open surgery, mainly used for holding suture needle for suturing operation. For beginners, it may take some time and practice to master the use of the needle holder. Therefore, there may be problems such as unskilled operation and poor suturing effect in the early stage of use. If too much force is applied or improper operation is made when using the needle holder, unnecessary damage to the tissue or other complications may be caused, such as needle breakage and other accidents, and the suture needle is always in an exposed state during the suturing process, which has a certain risk of accidental injury. In addition, the traditional needle holder may have problems such as hand fatigue and uncomfortable holding during use, which affects the accuracy of surgical operation. The angle and position adjustment are also relatively limited, and the surgical personnel need to change their own posture or use other tools to assist operation. SUMMARY

[0004] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0005] A holding needle holder, comprising: a needle holding component 1000, a handle component 2000, a driving component 4000, and a rotating knob 1060; the rotating knob 1060 can drive the needle holding component to rotate by 360 degrees; the driving component 4000 comprises a trigger button 4010 and a driving rod 4020, when the trigger button 4010 is cocked, the trigger button 4010 pushes the driving rod 4020 to swing, driving the needle holding component 1000 to drive the suture needle component 5000 to rotate and operate; the needle holding component 1000 comprises a trigger rod 1010, a driving ring 1020 and a first compression spring 1030, the driving ring 1020 and the first compression spring 1030 are fixed after being sleeved on the trigger rod 1010 from the proximal end, a limiting table 1011 is arranged on the trigger rod 1010, the limiting table 1011 limits the movement of the driving ring 1020 to the distal end, the first compression spring 1030 realizes pre-pressure on the driving ring 1020, and the first compression spring 1030 can release the force continuously applied to the trigger button 4010.

[0006] Further, the needle holding part 1000 comprises a lock nut 1040, which is used to fix the driving ring 1020 and the first compression spring 1030 by locking with the screw 1012 at the end of the firing rod 1010.

[0007] Further, the handle part 2000 is provided with a first pin shaft 2002, and the driving rod 4020 is provided with a first shaft hole 4021, and the driving rod 4020 can swing around the first pin shaft 2002 by cooperation of the first pin shaft 2002 and the first shaft hole 4021.

[0008] Further, the needle holder further comprises a second compression spring 1050, which is arranged outside the first compression spring 1030, and one end of the second compression spring 1050 abuts against the driving ring 1020, and the other end of the second compression spring 1050 abuts against the rotating knob 1060, so that the second compression spring 1050 can push the firing rod 1010 and the firing button 4010 to reset.

[0009] Further, the lock nut 1040 has a non-circular profile, and the rotating knob 1060 is internally provided with a clamping groove 1061 matched with the lock nut 1040, and the lock nut 1040 can reciprocate linearly inside the rotating knob 1060, and at the same time, the rotating knob 1060 can be rotated, and the lock nut 1040 can drive the needle holding part 1000 to rotate through the clamping groove 1061.

[0010] Further, the needle holding part further comprises a rack 1070, a gear disc 1080, a connecting rod 1090, a base 1110, and a needle rod base 1091, the rack 1070 is arranged on the firing rod 1010, the rack 1070 and the gear disc 1080 are engaged by teeth, the connecting rod 1090 is provided with a second pin shaft 1092, the second pin shaft 1092 is inserted into a waist-shaped hole 1081 of the gear disc 1080 to be hingedly connected, and the needle rod base 1091 is arranged in an arc-shaped slot 1111 of the base 1110 to form a reverse quadrilateral crank slider mechanism.

[0011] Further, the needle holder further comprises a releasing part 3000, which comprises a knob 3010 and a silk rope 3020, one end of the silk rope 3020 is connected with the knob 3010, the other end of the silk rope 3020 is connected with a rotating ring 1210, one end of a first rod 1220 is connected with the rotating ring 1210, and the other end of the first rod 1220 is fixedly connected with a needle pressing plate 1240, and the needle pressing plate 1240 can be released from the constraint of a suture needle 5010 arranged on a suture needle part 5000 by manually swinging the knob 3010, so that the suture needle part 5000 can be disassembled and replaced.

[0012] The holding needle holder further comprises a releasing component 3000, which comprises a knob 3010, a wire 3020, a rotating ring 1210 and a first rod 1220; the knob 3010 is connected with the wire 3020, the wire 3020 is fixedly connected with the needle pressing plate 1240 through the tightening ring 1210 and the first rod 1220, and the needle pressing plate 1240 can be separated from the suture needle 5010 provided on the suture needle component 5000 by manually operating the swinging knob 3010.

[0013] Further, the holding needle holder further comprises a third compression spring 1230, which is sleeved on the first rod 1220, one end of the third compression spring 1230 abuts against the needle pressing plate 1240, and the other end abuts against the protrusion provided on the base 1110; the needle pressing plate 1240 is linearly moved by pulling the needle pressing plate 1240, the third compression spring 1230 is compressed by operating the knob 3010, and the third compression spring 1230 is released to reset the needle pressing plate 1240 after the knob 3010 is released.

[0014] After adopting such a design, the holding needle holder of the utility model has at least the following advantages:

[0015] 1. The holding needle holder adopts a more comfortable handle design and a more reasonable lever ratio, thereby reducing the hand burden of a doctor during a long-time operation and reducing the risk caused by accidental sliding or falling during the operation process, and ensuring the safety of the operation.

[0016] 2. The needle holding end of the holding needle holder can be flexibly rotated by 360°, thereby allowing an operating personnel to adjust the angle and position of the holding needle holder according to needs during the operation process, so as to adapt to different operation parts and suture needs.

[0017] 3. The suture needle of the utility model is hidden in the needle holding end, the trigger is pressed to suture when suture is needed, the suture needle returns to the needle holding end again according to the track after passing through the tissue, and the risk of accidental scratch caused by exposure of the suture needle is avoided.

[0018] 4. The holding needle holder can release the force continuously applied to the trigger, avoid damage of the mechanical structure, and improve safety.

[0019] 5. The holding needle holder has simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, the utility model will be further described in detail in combination with the drawings and the specific embodiments.

[0021] Figure 1 It is a three-dimensional structure schematic view of the holding needle holder of the utility model;

[0022] Figure 2The utility model discloses a holding needle holder release component schematic diagram shows,

[0023] Figure 3 The utility model discloses a holding needle holder planing structure schematic diagram shows,

[0024] Figure 4 The utility model discloses a holding needle holder drive component structure schematic diagram shows,

[0025] Figure 5 The utility model discloses a holding needle component exploded schematic diagram shows,

[0026] Figure 6 The utility model discloses a rotary knob structure schematic diagram shows,

[0027] Figure 7 The utility model discloses a holding needle component cross section structure schematic diagram shows,

[0028] Figure 8 The utility model discloses a holding needle component structure schematic diagram shows,

[0029] Figure, 1000 needle holder component, 1010 firing rod, 1011 limit station, 1012 screw rod, 1020 drive ring, 1030 first compression spring, 1040 lock nut, 1050 second compression spring, 1060 rotary knob, 1061 clamping groove, 1062 first hole, 1070 rack, 1080 gear disc, 1081 waist type hole, 1090 connecting rod, 1091 thimble base, 1092 second pin shaft, 1110 base, 1111 arc slot, 1210 tightening ring, 1220 first rod, 1230 third compression spring, 1240 needle pressing plate, 2000 handle component, 2001a first track, 2001b second track, 2002 first pin shaft, 3000 release component, 3010 knob, 3020 silk rope, 4000 drive component, 4010 firing button, 4011a first boss, 4011b second boss, 4020 drive rod, 4021 first shaft hole, 5000 suture needle component, 5010 suture needle DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] In this article, "up", "down" and the like are only used to represent the relative position relationship between the relevant parts, and not to limit the absolute position of the relevant parts.

[0032] The end of each component close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. The expressions of the proximal end and the distal end are only used to make the description simple and clear, and should not be understood as any limitation on the utility model.

[0033] Referring to the accompanying drawings Figures 1-8 A holding needle holder comprises a needle holding component 1000, a handle component 2000, a driving component 4000, and a rotating knob 1060. The rotating knob 1060 can drive the needle holding component to rotate by 360 degrees. The driving component 4000 comprises a trigger button 4010 and a driving rod 4020. When the trigger button 4010 is pulled, the trigger button 4010 pushes the driving rod 4020 to swing, thereby driving the needle holding component 1000 to rotate and operate the suture needle component 5000. The needle holding component 1000 comprises a trigger rod 1010, a driving ring 1020, and a first compression spring 1030. The driving ring 1020 and the first compression spring 1030 are fixed after being sleeved on the trigger rod 1010 from the proximal end. A limiting table 1011 is arranged on the trigger rod 1010, which can limit the movement of the driving ring 1020 to the distal end. The first compression spring 1030 applies a pre-pressure to the driving ring 1020, and the first compression spring 1030 can release the force continuously applied to the trigger button 4010. The handle component 2000 adopts a comfortable grip design, which is more in line with the ergonomic principle. Through the design of the holding structure, the needle holder can be better fixed in the hands of the surgical personnel, reducing the risk caused by accidental sliding or falling during the operation, and being comfortable to hold, which can reduce the hand burden of the doctor during long-term operation.

[0034] Further, the needle holding component 1000 comprises a lock nut 1040, which is used to fix the driving ring 1020 and the first compression spring 1030 after being locked with the screw rod 1012 at the end of the trigger rod. When the suture needle 5010 passes through the tissue with excessive force, the trigger button 4010 is pulled, at which time the driving ring 1020 compresses the first compression spring 1030, thereby releasing the continuously applied force, avoiding the direct application of force to the mechanical structure, and improving the safety.

[0035] The handle component 2000 is provided with a first track 2001a and a second track 2001b, and the trigger button 4010 is provided with a first boss 4011a and a second boss 4011b. The first boss 4011a and the second boss 4011b are matched with the first track 2001a and the second track 2001b, respectively. The handle component 2000 is provided with a first pin shaft 2002, and the driving rod 4020 is provided with a first shaft hole 4021. The driving rod 4020 can swing around the first pin shaft 2002 through the cooperation of the first pin shaft 2002 and the first shaft hole 4021. By setting a reasonable lever structure, the hand burden of the doctor during long-term operation can be reduced, and the operation comfort of the doctor can be improved.

[0036] The needle holder further comprises a second compression spring 1050, which is arranged outside the first compression spring 1030, abuts against the driving ring 1020 at one end, and abuts against the rotating knob 1060 at the other end and is arranged in the first hole 1062. The second compression spring 1050 can push the firing rod 1010 to reset. When the firing button 4010 is pulled, the firing button 4010 pushes the driving rod 4020 to swing, the driving rod 4020 drives the driving ring 1020 to move towards the rear end of the needle holder, so that the second compression spring 1050 can be compressed to store energy. When the firing button 4010 is released, the driving ring 1020 is reset under the action of the second compression spring 1050. At the same time, the driving ring 1020 is in contact with the limiting table 1011 of the firing rod 1010 under the action of the second compression spring 1050, so as to push the firing rod 1010 to reset, thereby realizing the reciprocating movement of the firing rod 1010.

[0037] Further, the lock nut 1040 has a non-circular profile, and the rotating knob 1060 is internally provided with a clamping groove 1061 matched with the lock nut 1040. The lock nut 1040 can move linearly in the rotating knob 1060, and the rotating knob 1060 can be rotated to drive the rotation of the needle holding component 1000 through the clamping groove 1061.

[0038] Further, the needle holder further comprises a rack 1070, a gear disc 1080, a connecting rod 1090, a base 1110, and a needle rod base 1091. The rack 1070 is arranged on the firing rod 1010. The rack 1070 and the gear disc 1080 are engaged by teeth. The connecting rod 1090 is provided with a second pin shaft 1092 which is inserted into a waist-shaped hole 1081 of the gear disc 1080 to be hingedly matched. The needle rod base 1091 is arranged in an arc-shaped groove 1111 of the base 1110 to form a reverse quadrilateral crank slider mechanism. The reciprocating movement of the firing rod 1010 can drive the gear disc 1080 to rotate, the rotation of the gear disc 1080 can drive the connecting rod 1090 to swing, and the swinging of the connecting rod 1090 can drive the needle rod base 1091 to swing in the arc-shaped groove 1111, thereby driving the suture needle 5010 to rotate.

[0039] Further, the needle holder further comprises a releasing component 3000, which comprises a knob 3010, a silk cord 3020, a rotating ring 1210, and a first rod 1220. One end of the silk cord 3020 is connected to the knob 3010, the other end of the silk cord 3020 is connected to the rotating ring 1210, one end of the first rod 1220 is connected to the rotating ring 1210, and the other end of the first rod 1220 is fixedly connected to the needle pressing plate 1240. The manual operation of swinging the knob 3010 can make the needle pressing plate 1240 disengage from the suture needle 5010 of the suture needle component 5000, so that the suture needle component 5000 can be disassembled and replaced.

[0040] Further, a third compression spring 1230 is sleeved on the first rod 1220, one end of the third compression spring 1230 abuts against the pressing needle plate 1240, and the other end abuts against the protrusion provided on the base 1110; the pressing needle plate 1240 is linearly moved by pulling the knob 3010, the third compression spring 1230 is compressed, and the pressing needle plate 1240 is reset after the third compression spring 1230 is released when the knob 3010 is loosened.

[0041] The holding type structure needle holder of the utility model is designed with ergonomic handle and trigger, so that the surgical personnel can hold and operate more comfortably and stably. Through the design of the holding type structure, the needle holder can be better fixed in the hand of the surgical personnel, reducing the risk caused by accidental sliding or falling during the operation. This stability helps to ensure the safety of the operation. The holding type structure needle holder can be held by one hand and the rotation of the needle holding end can be controlled by the rotating knob. The suture needle is hidden in the needle holding end. When suture is needed, the trigger is pressed to perform suture. After passing through the tissue, the suture needle returns to the needle holding end according to the track, avoiding the risk of accidental injury caused by exposed suture needle. The needle holder of the utility model pays attention to the ergonomic principle, adopts a more reasonable lever ratio, and reduces the hand burden of the doctor during long-time operation. The needle holding end of the holding type structure needle holder can rotate flexibly by 360°, allowing the surgical personnel to adjust the angle and position of the needle holder during the operation according to the needs, to adapt to different surgical sites and suture needs. This flexibility helps to reduce the difficulty of the operation and better adapt to the complex surgical conditions during the operation, improving the operation efficiency.

[0042] Other embodiments of the utility model will occur to those skilled in the art from the disclosure of the specification and drawings. The present application is intended to cover any variations, uses, or adaptive changes to the utility model following the general principles of the utility model and comprising commonly known or conventional technical means in the art not disclosed by the utility model. The specification and examples are only regarded as exemplary, and the true scope and spirit of the utility model are indicated by the claims.

[0043] It should be understood that the utility model is not limited to the precise structures described above and shown in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A needle holder for grasping, comprising: The needle holding part, the handle part, the driving part, and the rotating knob; The rotating knob can drive the needle holding part to rotate; the driving part includes a trigger button and a driving rod. When the trigger button is pulled, the trigger button pushes the driving rod to swing, which drives the needle holding part to rotate and operate. The needle holding part includes a trigger rod, a driving ring, and a first compression spring. The driving ring and the first compression spring are fixed after being sleeved on the trigger rod from the proximal end. A limiting table is arranged on the trigger rod to limit the movement of the driving ring to the distal end. The first compression spring applies a pre-pressure to the driving ring. The first compression spring can release the force continuously applied to the trigger button.

2. The needle holder of claim 1, wherein The needle holding part further includes a lock nut. The driving ring and the first compression spring are fixed after being locked by the lock nut and the screw rod at the end of the trigger rod.

3. The needle holder of claim 1, wherein the handle is a pistol grip handle. The handle part is provided with a first pin shaft, and the driving rod is provided with a first shaft hole. The driving rod can swing around the first pin shaft through the cooperation of the first pin shaft and the first shaft hole.

4. The needle holder of claim 1, wherein the handle is a pistol grip handle. The needle holder further includes a second compression spring. The second compression spring is arranged outside the first compression spring, one end of which abuts against the driving ring, and the other end of which abuts against the rotating knob. The second compression spring can push the trigger rod and the trigger button to reset.

5. The needle holder of claim 2, wherein the handle is a cylindrical handle. The lock nut has a non-circular profile. The rotating knob is provided with a clamping groove matched with the lock nut. The lock nut can move linearly and reciprocally inside the rotating knob. By rotating the rotating knob, the lock nut can be driven to rotate the needle holding part through the clamping groove.

6. The needle holder of any one of claims 1-5, wherein, The needle holding part further includes a rack, a gear disc, a connecting rod, a base, and a needle rod base. The rack is arranged on the trigger rod. The rack and the gear disc are engaged through the teeth. The connecting rod is provided with a second pin shaft, which is inserted into a waist-shaped hole of the gear disc to be hingedly connected. The needle rod base is arranged in an arc-shaped groove of the base to form a reverse four-bar linkage mechanism.

7. The needle holder of claim 6, wherein the handle is a cylindrical handle. The holding needle holder further includes a release part. The release part includes a knob, a silk rope, a rotating ring, and a first rod. One end of the silk rope is connected to the knob, and the other end is connected to the rotating ring. One end of the first rod is connected to the rotating ring, and the other end is fixedly connected to the needle pressing plate. By manually operating the knob to swing, the needle pressing plate can be released from the constraint of the suture needle arranged on the suture needle part.

8. The needle holder of claim 7, wherein the handle is a cylindrical handle. The holding needle holder further includes a third compression spring. The third compression spring is sleeved on the first rod. One end of the third compression spring abuts against the needle pressing plate, and the other end abuts against a protrusion arranged on the base. By pulling the needle pressing plate to move linearly, the third compression spring is compressed. After the knob is released, the third compression spring is released to reset the needle pressing plate.

Images