CN111920576B

CN111920576B - Needle holding device for clinical ophthalmic surgery

Info

Publication number: CN111920576B
Application number: CN202010766180.XA
Authority: CN
Inventors: 王泽蕾; 于菲菲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2022-09-13
Anticipated expiration: 2040-08-03
Also published as: CN111920576A

Abstract

The invention discloses a needle holding device for an ophthalmologic clinical operation, which relates to the technical field of ophthalmologic operations and comprises a needle holder main body, wherein the needle holder main body comprises two holder tails and two holder heads, the holder tails are detachably connected with the holder heads, a central shaft is jointly and rotatably connected between the two holder heads, a locking mechanism for locking the positions of the two holder heads is arranged on a shaft arm of the central shaft, and a separation prevention mechanism is jointly arranged between the holder tails. Through the matching among the structures, the needle forceps have the advantages that the two forceps tails are separated from the two forceps heads when the needle forceps main body is held, so that an operator can hold the two forceps heads conveniently, the effect of reducing the integral dead weight of the needle forceps main body during holding is achieved, and the problems that in the prior art, when the forceps heads are sealed, the gravity of the forceps tails is relatively large, fingers of the operator are prone to fatigue, and the forceps are not sealed by the operator for a long time are solved.

Description

Needle holding device for clinical ophthalmic surgery

Technical Field

The invention relates to the technical field of ophthalmic surgery, in particular to a needle holding device for ophthalmic clinical surgery.

Background

At present, when a patient is clinically subjected to intraocular surgery, needle holders are mainly used, for example, a multifunctional needle holder disclosed in Chinese patent CN201710124347.0, the multifunctional needle holder comprises a jaw part, a four-bar linkage mechanism, a pull rod, a sleeve and a handheld part, the jaw part comprises a left half jaw and a right half jaw, the four-bar linkage mechanism comprises a left half jaw root, a right half jaw root, a connecting rod I and a connecting rod II, wherein the left half jaw root is hinged with the right half jaw root, the left half jaw root end is hinged with the connecting rod I end, the right half jaw root end is hinged with the connecting rod II end, and the other end of the connecting rod I is hinged with the other end of the connecting rod II and the end of the pull rod; 2. the operation time is prolonged, the working strength of doctors is increased, and the operation risk is increased; 3. easy abrasion, short service life and high medical cost.

But when the jaw is covered to in this scheme, its gravity because the pincers tail is great relatively, then causes operator's finger fatigue easily, does not utilize the operator to cover the jaw for a long time.

Disclosure of Invention

The invention aims to provide a needle holding device for ophthalmologic clinical operation, which has the advantages that when a needle forceps main body is held, two forceps tails are separated from two forceps heads, so that an operator can hold the two forceps heads conveniently, the effect of the integral dead weight of the needle forceps main body during holding is reduced, and the problems that in the prior art, when the forceps heads are covered, the fingers of the operator are fatigued easily due to the fact that the gravity of the forceps tails is relatively large, and the forceps are not covered by the operator for a long time are solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an ophthalmology clinical operation needle-holding device, includes needle-holding forceps main part, needle-holding forceps main part includes two pincers tails and two binding clip, the pincers tail with detachable connection between the binding clip, two rotate jointly between the binding clip and be connected with the center pin, the armshaft of center pin is provided with and supplies two the locking mechanical system of binding clip position locking, be provided with anti-disengaging mechanism jointly between the pincers tail.

Preferably, locking mechanical system includes two and supports clamping ring and first suppression piece, two it all cup joints to support the clamping ring just is located two on the armshaft of center pin between the binding clip, first suppression piece is followed the axial lead sliding connection of center pin is in the inner wall of center pin, first suppression piece passes through drive mechanism drive two support the clamping ring displacement, the outer wall fixedly connected with push-and-pull rod of first suppression piece, the one end of push-and-pull rod stretches out the side end face of center pin.

Preferably, drive mechanism includes the second support block, the second support block is followed the radial line sliding connection of center pin is in the inner wall of center pin, the outer wall fixedly connected with connecting block of second support block, the tip of connecting block articulates there are two linkage arms, two the linkage arm is kept away from the one end of connecting block all articulates there is connecting portion, two the outer wall of connecting portion respectively with two the medial surface fixed connection of support ring, two the common fixedly connected with extension spring of opposite side of connecting portion.

Preferably, one end of the push-pull rod, which is far away from the first pressing block, is fixedly connected with a push-pull button, and the outer wall of the push-pull button is provided with anti-skid grains.

Preferably, concave-convex lines are arranged on the opposite sides between the two tong heads.

Preferably, the separation preventing mechanism comprises an arc plate and two sleeve plates, the arc plate and the two sleeve plates use the central shaft as a circle center, the two sleeve plates are respectively and fixedly connected to the surfaces of the two pliers tails, the two sleeve plates are all sleeved on plate arms of the arc plate, and two end parts of the arc plate are fixedly connected with limiting blocks.

Preferably, the tong tail and the tong head are detachably connected through a bolt.

Preferably, the surface of the binding clip is provided with a convex part.

Compared with the prior art, the invention has the following beneficial effects:

firstly, when the needle is held, the effect of fixing the positions of the two forceps heads can be realized, and the stability of needle holding is ensured.

The invention can change the mode of clamping the needle holder body by fingers into the mode of holding the needle holder body, so that an operator can finish the suture by the force of the wrist.

When the needle holding forceps are changed into the main body for holding the needle holding forceps, the two forceps tails are separated from the two forceps heads, so that an operator can hold the two forceps heads conveniently, and the self weight of the whole needle holding forceps main body is reduced when the needle holding forceps are held.

And fourthly, after the two clamp tails are taken down, the two clamp tails cannot be separated from each other, so that the two clamp tails cannot be lost easily.

Drawings

FIG. 1 is a front view of the structure of the present invention and is taken as a front view;

FIG. 2 is a cross-sectional view of the structure of FIG. 1 taken along line A-A thereof in accordance with the present invention;

fig. 3 is a cross-sectional view of the locked configuration of the present invention corresponding to the orientation shown in fig. 2.

Fig. 4 is a front view of a partial structure of the present invention.

In the figure: 1-needle holding forceps main body, 2-forceps tail, 3-forceps head, 4-central shaft, 5-pressing ring, 6-first pressing block, 7-push-pull rod, 8-second pressing block, 9-connecting block, 10-linkage arm, 11-connecting part, 12-extension spring, 13-push-pull button, 14-concave-convex pattern, 15-arc plate, 16-sleeve plate, 17-limiting block, 18-bolt and 19-bulge.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an ophthalmology clinical operation needle-holding device, including needle-holding forceps main part 1, needle-holding forceps main part 1 includes two pincers tails 2 and two binding clip 3, detachable connection between pincers tail 2 and the binding clip 3, it is connected with center pin 4 to rotate jointly between two binding clip 3, the armshaft of center pin 4 is provided with the locking mechanical system who supplies two binding clip 3 position locking, be provided with jointly between pincers tail 2 and prevent separating mechanism, when using, as shown in figure 1, the finger circle on two pincers tails 2 of operator's accessible this moment, it holds between the fingers to operate binding clip 3 to the needle, when holding the needle state simultaneously, through locking mechanical system, can fix the position of two binding clip 3, the stability of holding the needle has been guaranteed.

In the technical scheme, the specific locking mechanism comprises two abutting rings 5 and a first abutting block 6, the two abutting rings 5 are sleeved on the shaft arm of the central shaft 4 and are positioned between the two clamp heads 3, the first abutting block 6 is connected to the inner wall of the central shaft 4 in a sliding manner along the axial center line of the central shaft 4, the first abutting block 6 drives the two abutting rings 5 to move through a transmission mechanism, the outer wall of the first abutting block 6 is fixedly connected with a push-pull rod 7, one end of the push-pull rod 7 extends out of the side end face of the central shaft 4, the transmission mechanism comprises a second abutting block 8, the second abutting block 8 is connected to the inner wall of the central shaft 4 in a sliding manner along the radial line of the central shaft 4, the outer wall of the second abutting block 8 is fixedly connected with a connecting block 9, the end part of the connecting block 9 is hinged with two interlocking arms 10, the ends of the two interlocking arms 10 far away from the connecting block 9 are hinged with connecting parts 11, the outer walls of the two connecting parts 11 are respectively and fixedly connected with the inner side faces of the two abutting rings 5, the opposite sides of the two connecting portions 11 are fixedly connected with an extension spring 12 together, when in a needle holding state, as shown in fig. 2, through the process that the push-pull rod 7 moves leftwards in the direction shown in fig. 2, the first pressing block 6 synchronously moves leftwards in the direction shown in fig. 2 and reaches a state shown in fig. 3, in the process, the inclined plane end on the first pressing block 6 presses against the inclined plane end on the second pressing block 8, so that the second pressing block 8 moves towards the direction far away from the first pressing block 6, the process that the second pressing block 8 moves towards the direction far away from the first pressing block 6 is linked through the connecting block 9, the two linkage arms 10 and the two connecting portions 11, so that the two pressing rings 5 move towards opposite directions, so that the two pressing rings 5 respectively press the two clamp heads 3, and further, the effect of fixing the positions of the two clamp heads 3 can be realized by utilizing the friction resistance generated during pressing, the stability of needle holding is guaranteed, and meanwhile, as shown in fig. 3, through the abutting relationship between the plane end on the first pressing block 6 and the plane end on the second pressing block 8, the positions of the two pressing rings 5 are firmly fixed under the condition that the push-pull rod 7 is not subjected to external force, and the self-locking effect can be realized.

Among the above-mentioned technical scheme, the one end fixedly connected with push-and-pull button 13 that first suppression piece 6 was kept away from to specific push-and-pull rod 7, and the outer wall of push-and-pull button 13 is provided with anti-skidding line, and through the push-and-pull button 13 that sets up, the operator push-and-pull rod 7 of being convenient for has increased the frictional resistance between push-and-pull button 13 and the palm through the anti-skidding line that sets up, has reached the effect of preventing skidding.

Among the above-mentioned technical scheme, the opposite side between two concrete binding clip 3 all is provided with concave-convex line 14, through the concave-convex line 14 that sets up, has increased the frictional resistance when supporting clamping ring 5 and supporting clamping clip 3, and then makes the fixed more firm of binding clip 3 position.

Among the above-mentioned technical scheme, specific separation mechanism that prevents includes circular arc board 15 and two lagging 16 that use center pin 4 as the centre of a circle, and two lagging 16 difference fixed connection are on the surface of two pincers tails 2, and two lagging 16 all cup joint the plate arm at circular arc board 15, and the equal fixedly connected with stopper 17 in both ends of circular arc board 15 combines shown in fig. 1, has reached and has taken off two pincers tails 2 after, and two pincers tails 2 can not break away from each other, and then difficult losing.

Among the above-mentioned technical scheme, through the detachable connection of bolt 18 between specific pincers tail 2 and the binding clip 3, change the mode that the needle holder main part 1 was held into to the mode of holding the needle holder main part 1 with pointing to the operator, so that when the operator accomplishes the sewing up with the strength of wrist, through wrench movement two bolts 18, can make two pincers tails 2 break away from two binding clips 3, the operator of being convenient for at this moment holds two binding clips 3, when having reduced to hold, the holistic dead weight of needle holder main part 1.

Among the above-mentioned technical scheme, the surface of specific binding clip 3 is provided with bellying 19, and through the bellying 19 that sets up, the frictional resistance when having increased the operator and covering and holding binding clip 3 has reached the effect of preventing skidding.

The working principle is as follows: when the needle holding device for ophthalmic clinical operation is used, as shown in fig. 1, an operator can control the binding clip 3 to clamp and hold a needle through the finger rings on the two forceps tails 2, and simultaneously, in a needle holding state, as shown in fig. 2, the operator can press the push-pull button 13 to move the push-pull rod 7 leftwards in the direction shown in fig. 2, so that the first pressing block 6 synchronously moves leftwards in the direction shown in fig. 2 and reaches the state shown in fig. 3, in the process, the inclined end on the first pressing block 6 presses against the inclined end on the second pressing block 8, so that the second pressing block 8 moves in the direction away from the first pressing block 6, the process of moving in the direction away from the first pressing block 6 by the second pressing block 8 is linked through the connecting block 9, the two linkage arms 10 and the two connecting parts 11, so that the two pressing rings 5 move in the opposite directions, and the two pressing rings 5 respectively press the two binding clips 3, further, the friction resistance generated during abutting is utilized, the effect of fixing the positions of the two binding clip heads 3 is realized, the stability of needle holding is ensured, meanwhile, as shown in fig. 3, through the abutting relation between the plane end on the first abutting block 6 and the plane end on the second abutting block 8, the positions of the two abutting rings 5 are firmly fixed under the condition that the push-pull button 13 is not under the action of external force, the self-locking effect is realized, when the fixing of the positions of the two binding clip heads 3 is released, the push-pull button 13 is pulled, the mechanisms return to the state shown in fig. 2 by utilizing the elastic restoring force of the extension spring 12, the abutting rings 5 are separated from the binding clip heads 3, and the two binding clip heads 3 can rotate again;

the mode of holding needle holder main part 1 is changed into the mode of holding needle holder main part 1 with the finger to when the operator accomplishes the sewing up with the strength of wrist, through wrench movement two bolts 18, can make two pincers tails 2 break away from two binding clip 3, the operator of being convenient for this moment holds two binding clip 3, when having reduced and holding, the holistic dead weight of needle holder main part 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an ophthalmology clinical operation needle holding device, includes needle holder main part (1), its characterized in that: the needle holding forceps main body (1) comprises two forceps tails (2) and two forceps heads (3), the forceps tails (2) and the forceps heads (3) are detachably connected, a central shaft (4) is jointly and rotatably connected between the two forceps heads (3), a shaft arm of the central shaft (4) is provided with a locking mechanism for locking the positions of the two forceps heads (3), and a separation prevention mechanism is jointly arranged between the forceps tails (2);

the locking mechanism comprises two pressing rings (5) and a first pressing block (6), the two pressing rings (5) are sleeved on a shaft arm of the central shaft (4) and located between the two tong heads (3), the first pressing block (6) is connected to the inner wall of the central shaft (4) in a sliding mode along the axial direction of the central shaft (4), the first pressing block (6) drives the two pressing rings (5) to move through a transmission mechanism, a push-pull rod (7) is fixedly connected to the outer wall of the first pressing block (6), and one end of the push-pull rod (7) extends out of the side end face of the central shaft (4);

the transmission mechanism comprises a second pressing block (8), the second pressing block (8) is connected to the inner wall of the central shaft (4) in a sliding mode along the radial line of the central shaft (4), a connecting block (9) is fixedly connected to the outer wall of the second pressing block (8), the end portion of the connecting block (9) is hinged to two linkage arms (10), two linkage arms (10) are far away from one end of the connecting block (9) is hinged to a connecting portion (11), the outer wall of the connecting portion (11) is fixedly connected with the inner side face of the pressing block (5) respectively, and the outer wall of the connecting portion (11) is fixedly connected with a stretching spring (12) on the opposite side of the connecting portion (11).

2. The ophthalmic clinical surgical needle holding device of claim 1, wherein: one end, far away from the first pressing block (6), of the push-pull rod (7) is fixedly connected with a push-pull button (13), and anti-skid grains are arranged on the outer wall of the push-pull button (13).

3. The ophthalmic clinical surgical needle-holding device of claim 1, wherein: concave-convex grains (14) are arranged on the opposite sides between the two forceps heads (3).

4. The ophthalmic clinical surgical needle holding device of claim 1, wherein: prevent separating mechanism includes circular arc board (15) and two lagging (16) that use center pin (4) as the centre of a circle, two lagging (16) fixed connection respectively is two the surface of pincers tail (2), two lagging (16) all cup joints the plate arm of circular arc board (15), the equal fixedly connected with stopper (17) in both ends of circular arc board (15).

5. The ophthalmic clinical surgical needle-holding device of claim 1, wherein: the clamp tail (2) and the clamp head (3) are detachably connected through a bolt (18).

6. The ophthalmic clinical surgical needle holding device of claim 1, wherein: the surface of the forceps head (3) is provided with a convex part (19).