CN215229169U - Pterygium clamp - Google Patents

Abstract

The application discloses a pterygium clamp, which comprises a first clamping rod and a second clamping rod; the first clamping rod comprises a first fixing section, a first force application section, a first clamping section and a first clamping plate which are fixed in sequence, and the second clamping rod comprises a second fixing section, a second force application section, a second clamping section and a second clamping plate which are fixed in sequence; the first clamping plate is vertical to the first clamping section; the second clamping plate is vertical to the second clamping section; the first clamping plate and the second clamping plate are arranged in parallel; the first fixing section and the second fixing section are fixedly connected, and the first clamping section and the second clamping section are crossed with each other to reduce the distance between the crossings of the two pterygium clamps and limit the width of the pterygium; the pterygium clip has a natural state and an open state. The following disadvantages are avoided: the pterygium is clamped and cut irregularly; the excision site of pterygium is exposed by dilating the conjunctival incision, and the graft is large after the conjunctival incision is dilated, which makes suturing difficult, and the graft cannot stop bleeding in advance, and makes it difficult to find bleeding point after excision.

Description

Pterygium clamp

Technical Field

The application relates to the technical field of medical equipment, especially, relate to a pterygium presss from both sides.

Background

Pterygium is one of the more common eye diseases, and is expressed in the form of: the bulbar conjunctiva with hyperplastic fissures and the fibrovascular tissues under the bulbar conjunctiva cross the corneal limbus and grow into the cornea, which belongs to a hyperplastic ocular surface disease. The pterygium has a shape similar to the wings of an insect, and is approximately triangular or fan-shaped. The traditional Chinese medicine is called "climbing the eyes" or "pterygium climbing".

At present, the most fundamental treatment method for the disease is surgical resection, however, the current surgical treatment surgical instruments are relatively simple, the surgical mode is not easy to standardize, and therefore the surgical effect is uneven, wherein the main problem is high recurrence rate. To reduce the recurrence rate, a combination of surgery, i.e., a bulbar conjunctival transplantation with limbal stem cells after pterygium excision, is commonly used. Whether the pterygium can be excised as cleanly as possible and preparation of the graft bed are the key and prerequisite for the operation effect. The prior pterygium surgical instruments are ophthalmic micro-tweezers and micro-scissors, and the structure of the micro-tweezers is approximately similar to that of common daily tweezers.

Ophthalmological microscopic forceps take pterygium tissue and have the force point at the forceps tip. The use has the following disadvantages: 1. only part of the pterygium can be grasped at one time, and the grasped part has irregular shape and unclear boundary. 2. When the pterygium is pulled and lifted, the pterygium is in a sector shape, and the closer the pterygium is to the required cutting position, the wider the cornea cutting position is, the conjunctiva incision on the surface of the pterygium is passively expanded, the required transplanting range is enlarged, and the matching is difficult to be orderly. 3. Since the pterygium tissue is not flattened during cutting, the cutting is unclear, so that excessive pterygium tissue remains, the recurrence rate is increased, and the possibility of mistaken damage to the surrounding normal tissue is increased. 4. The hemostasis can not be performed in advance, the tissue shrinks after being cut, the bleeding point is difficult to find for hemostasis, and the further operation is affected.

SUMMERY OF THE UTILITY MODEL

The application provides a pterygium clamp has avoided the following shortcoming of the micro-tweezers of current ophthalmology: when the pterygium is clamped irregularly, the cutting part of the pterygium can be exposed only by expanding a conjunctival incision, so that the cutting part cannot stop bleeding in advance, and the bleeding point is difficult to find after cutting, so that the required transplantation piece is large and the suturing is difficult.

The pterygium clamp comprises a first clamping rod and a second clamping rod; the first clamping rod comprises a first fixing section, a first force application section, a first clamping section and a first clamping plate which are fixed in sequence, and the second clamping rod comprises a second fixing section, a second force application section, a second clamping section and a second clamping plate which are fixed in sequence; one end of the first clamping plate is vertically and fixedly connected with one end of the first clamping section, which is far away from the first force application section; one end of the second clamping plate is vertically and fixedly connected with one end of the second clamping section, which is far away from the second force application section; the first clamping plate and the second clamping plate are arranged in parallel; one end of the first fixing section, which is far away from the first force application section, and one end of the second fixing section, which is far away from the second force application section, are fixedly connected at least partially, and the thickness of the fixedly connected part is larger than that of the part, which is not fixedly connected, of the first fixing section and the second fixing section; the first clamping section and the second clamping section are mutually crossed; the pterygium clip has a natural state and an open state;

in the natural state, a fixed distance is reserved between the first force application section and the second force application section, and the first clamping plate and the second clamping plate are close to each other; in the open state, the fixed distance between the first force application section and the second force application section is reduced, and the first clamping plate and the second clamping plate are far away from each other.

In one embodiment, the first clamping plate has a first clamping plane facing the second clamping plate, the second clamping plate has a second clamping plane facing the first clamping plate; in the natural state, the first clamping plane and the second clamping plane are close to each other; in the open state, the first and second clamping planes are spaced apart from each other.

In one embodiment, the end of the first clamping plate far away from the first clamping section is provided with a butt joint bulge, and the end of the second clamping plate far away from the first clamping section is provided with a butt joint groove; in the natural state, the butt joint bulge of the first clamping plate is inserted into the butt joint groove of the second clamping plate, and the butt joint groove of the second clamping plate is inserted into the butt joint bulge of the first clamping plate.

In one embodiment, the first clamping plane is provided with first clamping anti-slip grains, and the second clamping plane is provided with second clamping anti-slip grains; in the natural state, the first and second clamping skids are used for contacting with the pterygium respectively.

In one embodiment, the first force application section comprises a first fixedly connected holding section and a first butt section, the first holding section is connected with the first fixing section, and the first butt section is connected with the first clamping section; the second force application section comprises a second holding section and a second butt-joint section which are fixedly connected, the second holding section is connected with the second fixing section, and the second butt-joint section is connected with the second clamping section.

In one embodiment, a first handheld anti-slip pattern is arranged on one side, away from the second handheld section, of the first handheld section, and a second handheld anti-slip pattern is arranged on one side, away from the first handheld section, of the second handheld section.

In one embodiment, the width of the first handheld segment is greater than the width of the first docking segment, and the width of the second handheld segment is greater than the width of the second docking segment.

In one embodiment, the width of each of the first and second hand-held segments is greater than or equal to 6 millimeters and less than or equal to 8 millimeters; the width of each of the first butt-joint section and the second butt-joint section is greater than or equal to 1.5 millimeters and less than or equal to 2 millimeters.

In one embodiment, the width of the first clamping section and the width of the second clamping section are both 1 mm.

In one embodiment, the first clamping bar and the second clamping bar are each integrally formed of hard stainless steel.

The utility model provides a pterygium presss from both sides, when need not use, pterygium presss from both sides and is in the natural state, and first grip block and second grip block are drawn close each other this moment. When the pterygium clamp is required to be used, namely when the pterygium clamp is required to be in an opening state, two fingers of an operator respectively approach to the opposite sides of the first force application section and the second force application section, then a pinching force is applied, the first clamping plate and the second clamping plate are opened under the action of the first force application section and the second force application section, namely, a variable distance is formed between the first clamping plate and the second clamping plate, then the pterygium clamp extends to the position of the pterygium, so that the pterygium is located at the variable distance between the first clamping plate and the second clamping plate, and then the pinching force applied by the operator is reduced, so that the first clamping plate and the second clamping plate are close to each other, and the pterygium is clamped. At this time, the first clamping section and the second clamping section are crossed with each other, so that the first force application section and the second force application section can be used for opening or closing the two, and the two sections can play the roles of blocking, closing and limiting the width of the pterygium on two sides of the pterygium. And the intersection point of the first clamping section and the second clamping section moves back and forth along with the variable distance between the first clamping plate and the second clamping plate. When first grip block and second grip block were close to more, that is the centre gripping when pterygium was thinner more, the crossing of first grip block and second grip block moved to the grip block more, like this, more effectively played the effect of restriction width to pterygium both sides to avoided pterygium because of different thickness from the right angle corner edge leakage of grip block and grip block. The operator pulls the pterygium out of the conjunctival incision a little, then, the same method from the other side of the pterygium plane pulls another pterygium clip in, pulls the pterygium out a little again, if necessary, releases the first pterygium clip, shifts forwards and clamps the pterygium again, and alternately advances until the cutting part of the pterygium is exposed out of the conjunctival incision. Then cutting the pterygium between the clamping sections of the two pterygium clamps by using a pair of scissors, and loosening the pterygium clamps after electric coagulation hemostasis; the wound edge is restored according to its elasticity. Therefore, the graft incision is protected, active bleeding does not exist, the shape of the graft bed is standard, the visual field is clear, the operation time is shortened, and the operation effect is good.

As can be seen from the above, according to the pterygium clamp provided by the application, the pterygium is smoothly pulled out of a conjunctiva incision, the wound edge can be cut neatly, and the pterygium clamp can be loosened after the cutting edge is subjected to electric coagulation for hemostasis. The defects that the pterygium is not regular when being held by the existing ophthalmologic microscope clamp, the pterygium can be reached and exposed only by expanding a conjunctival incision, the cutting of the cutting part is needed, the hemostasis can not be realized in advance, the bleeding point searching after the cutting is difficult, the required transplanting piece is larger, and the suturing is difficult are avoided.

Drawings

Fig. 1 is a schematic diagram of a pterygium clip in a natural state according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of another direction of a pterygium clip in a natural state according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a pterygium clip in an open state according to an embodiment of the present application;

FIG. 4 is a close-up view of a pterygium clip in an open state as provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a pterygium clip usage provided by an embodiment of the present application;

fig. 6 is another schematic diagram of the pterygium clip usage provided by an embodiment of the present application.

Description of the reference numerals

100-pterygium clamp; 10-a first clamping bar; 11-a first fixed section; 12-a first force application segment; 121-a first handheld segment; 122-a first docking section; 13-a first clamping section; 14-a first clamping plate; 15-a first clamping plane; 16-butting grooves; 17-first grip skid pattern; 18-first handheld non-slip pattern; 20-a second clamping bar; 21-a second fixed segment; 22-a second force application segment; 221-a second handheld segment; 222-a second docking section; 23-a second clamping section; 24-a second clamping plate; 25-a second clamping plane; 26-a docking projection; 27-second grip skid pattern; 28-second hand-held non-slip pattern; 200-pterygium.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

The X direction shown in fig. 1 is the longitudinal direction of the first force application section 12, and the Y direction is the width direction of the first force application section 12 (the same applies to other figures). Hereinafter, vertical is vertical within the error range, and parallel is also parallel within the error range. The error range of the perpendicularity can be +/-3 degrees, and the error range of the parallelism can also be +/-3 degrees. Within this error range, vertical and parallel are also included in the present application.

Referring to fig. 1 to 6, an embodiment of the disclosure provides a pterygium clip 100, including: a first gripping shank 10 and a second gripping shank 20. The first clamping rod 10 comprises a first fixing section 11, a first force application section 12, a first clamping section 13 and a first clamping plate 14 which are fixed in sequence, and the second clamping rod 20 comprises a second fixing section 21, a second force application section 22, a second clamping section 23 and a second clamping plate 24 which are fixed in sequence.

Wherein, one end of the first clamping plate 14 is vertically and fixedly connected with one end of the first clamping section 13 far away from the first force application section 12; one end of the second clamping plate 24 is vertically and fixedly connected with one end of the second clamping section 23 far away from the second force application section 22; the first clamping plate 14 and the second clamping plate 24 are arranged in parallel; one end of the first fixing section 11 far away from the first force application section 12 and one end of the second fixing section 21 far away from the second force application section 22 are fixedly connected at least partially, and the thickness of the fixedly connected part is larger than that of the part of the first fixing section 11 and the second fixing section 21 which is not fixedly connected; the first clamping section 13 and the second clamping section 23 are mutually crossed; the pterygium clip 100 has a natural state and an open state.

In a natural state, a fixed distance is reserved between the first force application section 12 and the second force application section 22, and the first clamping plate 14 and the second clamping plate 24 are close to each other; in the expanded state, the fixed distance between the first force application section 12 and the second force application section 22 is reduced, and the first clamping plate 14 and the second clamping plate 24 are away from each other.

Wherein, the specific case that first centre gripping section 13 and second centre gripping section 23 intercrossed is: the first clamping section 13 and the first force application section 12 have a set angle, one end of the first clamping section 13, which is far away from the first force application section 12, extends obliquely to the second force application section 22, the second clamping section 23 and the second force application section 22 have a set angle, and one end of the second clamping section 23, which is far away from the second force application section 22, extends obliquely to the first force application section 12, so that the first clamping section 13 and the second clamping section 23 are crossed. The set angle may be 55 to 65 degrees, and thus the first clamping section 13 and the second clamping section 23 are arranged to cross each other at 55 to 65 degrees. Since the first clamping section 13 and the second clamping section 23 are crossed, the gap between the first clamping section 13 and the second clamping section 23 is greatly reduced, so that the operation space can be reduced. The first clamping section 13 and the second clamping section 23 are easily driven by the first force application section 12 and the second force application section 22, and the operation convenience is improved. And the thickness of the fixed connection part is larger than the thickness of the part (as shown in fig. 1 and fig. 2) of the first fixing section 11 and the second fixing section 21 which is not fixedly connected, so that the strong expansion force is kept between the first clamping rod 10 and the second clamping rod 20, and after the first clamping section 13 and the second clamping section 23 are crossed, the first clamping plate 14 and the second clamping plate 24 are in a close state in a natural state

In this embodiment, the thickness of the fixedly connected portion of the first fixing section 11 and the second fixing section 21 is greater than the thickness of the non-fixedly connected portion of the first fixing section 11 and the second fixing section 21, and it can be understood by those skilled in the art that, in the natural state, the thickened portion of the first fixing section 11 and the second fixing section 21 can keep a strong expansion force between the first clamping rod 10 and the second clamping rod 20, and after crossing of the first clamping section 13 and the second clamping section 23, the first clamping plate 14 and the second clamping plate 24 are in a close state and have a large clamping force in the natural state. It will be further understood by those skilled in the art that the size of the thickened portions of the first fixing segment 11 and the second fixing segment 21 can be determined according to the clamping force required between the first clamping plate 14 and the second clamping plate 24, and the material of the thickened portions of the first fixing segment 11 and the second fixing segment 21 is preferably hard and wear-resistant. When the pterygium clamp is used, an operator tightly pinches the force application section, the first clamping plate 14 and the second clamping plate 24 are opened and enter the pterygium 200, when the operator loosens the pinching force of the force application section, the pterygium clamp 100 clamps the pterygium 200 according to the natural state, at the moment, although the operator lightly holds the pterygium clamp 100, due to the lever action of the thickened parts of the first fixing section 11 and the second fixing section 21, a large biting force is formed between the first clamping plate 14 and the second clamping plate 24, and the pterygium 200 is firmly bitten between the first clamping plate 14 and the second clamping plate 24. When the pterygium clamp 100 is required to be used, namely, when the pterygium clamp 100 is required to be in an opening state, two fingers of an operator respectively approach to the opposite sides of the first force application section 12 and the second force application section 22, and then a pinching force is applied, wherein the first clamping plate 14 and the second clamping plate 24 are opened under the action of the first force application section 12 and the second force application section 22, namely, a variable distance is formed between the first clamping plate 14 and the second clamping plate 24, then the pterygium clamp 100 extends to the position of the pterygium 200, so that the pterygium 200 is located at the position of the variable distance between the first clamping plate 14 and the second clamping plate 24, and then the pinching force applied by the operator is reduced, so that the first clamping plate 14 and the second clamping plate 24 are close to each other, and the pterygium clamp 100 is clamped.

The first clamping plate 14 and the second clamping plate 24 are spaced apart from each other, i.e., the distance between the first clamping plate 14 and the second clamping plate 24 gradually increases, i.e., there is a variable spacing therebetween, which, as the name suggests, varies with the pinching force. When the pterygium 200 is thick, a large pinching force can be applied to make the pitch large, and when the pterygium 200 is thin, a small pinching force can be applied to make the pitch small, thereby facilitating the operator to freely control the pitch and increasing the applicability.

At this time, the first holding section 13 and the second holding section 23 cross each other, and both can be opened or closed by the first force applying section 12 and the second force applying section 22, and can play a role of blocking, closing and limiting the width of the pterygium 200 on both sides of the pterygium 200. And the intersection point of the first clamping section and the second clamping section moves back and forth along with the variable distance between the first clamping plate and the second clamping plate. When first grip block and second grip block were close to more, that is the centre gripping when pterygium was thinner more, the crossing of first grip block and second grip block moved to the grip block more, like this, more effectively played the effect of restriction width to pterygium both sides to avoided pterygium because of different thickness from the right angle corner edge leakage of grip block and grip block. Then, the operator slightly pulls the pterygium clamp 100, smoothly pulls the pterygium 200 out of the conjunctival incision, then cuts the pterygium with scissors, and releases the pterygium clamp 100 after electric coagulation hemostasis; therefore, the graft incision is protected, active bleeding does not exist, the shape of the graft bed is standard, the visual field is clear, the operation time is shortened, and the operation effect is good.

As can be seen, the pterygium clip 100 of this embodiment provides that the pterygium clip 100 pulls the pterygium 200 out of the conjunctiva incision smoothly, which can cut the wound margin neatly, and the pterygium clip 100 can be released after the pre-hemostasis is performed by electrocoagulation on the cut margin. The following disadvantages of the prior common ophthalmic micro-forceps are avoided: when the pterygium 200 is clamped irregularly, the cutting of the exposed pterygium 200, which is required to be cut, can be achieved by expanding the conjunctival incision, the bleeding cannot be stopped in advance, the bleeding point is difficult to find after cutting, the required graft is large, and the suture is difficult.

The first holding plate 14 and the second holding plate 24 each have a width of 1 mm and a length of 6 mm, and each have an effective length of 4 mm, that is, the length of the portion of the first holding plate 14 and the second holding plate 24 for holding the pterygium is 4 mm. Specifically, the width of the first butting section 122 and the width of the second butting section 222 are 2 mm, the width of the first clamping section 13 and the width of the second clamping section 23 are half of the width of the first butting section 122 and the width of the second butting section 222, namely 1 mm, so that the joint of the first clamping section 13 and the first clamping plate 14 occupies 1 mm of the first clamping plate 14, the joint of the second clamping section 23 and the second clamping plate 24 occupies 1 mm of the second clamping plate 24, and since the first clamping section 13 and the second clamping section 23 are intersected with each other, the joints occupy a total length of 2 mm of the first clamping plate 14 and the second clamping plate 24, and the length of 2 mm is not a position for effectively clamping pterygium, so that the effective lengths of the first clamping plate 14 and the second clamping plate 24 are both 4 mm.

Although the pterygium sizes are different among patients, since two pterygium clamps are simultaneously used from two directions, the narrowing effect can be further realized, even if the large pterygium is generated, the large pterygium can be controlled within the range of 4 mm in width, and the effective length of the clamping plate is set to be 4 mm. The effective length of the first clamping plate 14 and the second clamping plate 24 is set to 4 mm. Of course, the width of the first clamping plate 14 is the same direction as the length of the first force application section 12, and the length of the first clamping plate 14 is the same direction as the width of the first force application section 12.

In some embodiments, the first clamping plate 14 has a first clamping plane 15 facing the second clamping plate 24, the second clamping plate 24 has a second clamping plane 25 facing the first clamping plate 14; in a natural state, the first clamping plane 15 and the second clamping plane 25 are close to each other; in the open state, the first and second holding planes 15 and 25 are distant from each other.

Since the first holding plane 15 and the second holding plane 25 are respectively arranged on the opposite sides of the first holding plate 14 and the second holding plate 24, an operator can contact with the pterygium 200 by using the first holding plane 15 and the second holding plane 25 to increase the contact area of the pterygium 200 and the pterygium clamp 100, so that the pterygium 200 can be held and pulled out more smoothly, and the smoothness of the cut can be increased.

In some embodiments, the end of the first clamping plate 14 remote from the first clamping section 13 is provided with an abutment protrusion 26161 and an abutment groove 16162, the end of the second clamping plate 24 remote from the first clamping section 23 is provided with an abutment protrusion 26261 and an abutment groove 16262, and the abutment protrusion 26161 of the first clamping plate 14 mates with the abutment groove 16262 of the second clamping plate 24, and the abutment groove 16162 of the first clamping plate 14 mates with the abutment protrusion 26161 of the second clamping plate 24; in a natural state, the abutting projection 26161 of the first clamping plate 14 is inserted into the abutting groove 16262 of the second clamping plate 24, and the abutting projection 26161 of the second clamping plate 24 is inserted into the abutting groove 16162 of the first clamping plate 14. The deformation of the pterygium clip 100 due to contact when not in use can be prevented, thereby increasing the structural stability of the pterygium clip 100. In addition, when the pterygium clip 100 is used, due to the fact that the concave-convex tooth-shaped structures are formed between the abutting protrusion 26 and the abutting groove 16, when the pterygium clip 100 opens a certain opening, the pterygium 200 can be accommodated between the concave-convex tooth-shaped structures, and meanwhile, the limitation of the pterygium 200 through the abutting protrusion 26 and the abutting groove 16 is equivalent to the meshing limitation of the pterygium 200 through the tooth-shaped structures, so that the pterygium 200 is prevented from being extruded out of the space between the first clamping plate 14 and the second clamping plate 24.

In some embodiments, the first clamping surface 15 is provided with first clamping beads 17, the second clamping surface 25 is provided with second clamping beads 27, preferably the first clamping beads 17 cover a portion of the first clamping surface 15, and the second clamping beads 27 cover a portion of the second clamping surface 25; in the open state, the first holding skidproof pattern 17 and the second holding skidproof pattern 27 are used to contact the pterygium 200, respectively. By arranging the first clamping skidproof grain 17 and the second clamping skidproof grain 27, when the pterygium clip 100 is prevented from clamping and pulling out the pterygium 200, the pterygium 200 is prevented from loosening from the pterygium clip 100, the stability and the reliability of clamping and pulling out the pterygium 200 are increased, and the operation difficulty is simplified.

In some embodiments, the first force application section 12 includes a first holding section 121 and a first butt section 122 which are fixedly connected, the first holding section 121 is connected with the first fixing section 11, and the first butt section 122 is connected with the first clamping section 13; the second force application segment 22 comprises a second holding segment 221 and a second butt segment 222 which are fixedly connected, the second holding segment 221 is connected with the second fixing segment 21, and the second butt segment 222 is connected with the second clamping segment 23. The first holding section 121 and the second holding section 221 have sufficient widths to facilitate the hand contact operation of the operator, and the widths of the first butt-joint section 122 and the second butt-joint section 222 are reduced to prevent the occlusion of the surgical field. Thereby reducing the operation difficulty.

In some embodiments, the side of the first handheld section 121 facing away from the second handheld section 221 is provided with a first handheld anti-slip pattern 18, and the side of the second handheld section 221 facing away from the first handheld section 121 is provided with a second handheld anti-slip pattern 28. When the operator operates, the hand is contacted with the first handheld anti-slip pattern 18 and the second handheld anti-slip pattern 28, so that the fingers of the operator can be prevented from slipping, the operation safety is improved, and the operation difficulty is reduced.

In some embodiments, the width of the first handhold section 121 is greater than the width of the first docking section 122, and the width of the second handhold section 221 is greater than the width of the second docking section 222. The first holding section 121 and the second holding section 221 need to be in contact with the hands of an operator, so that the arrangement is wide, and the operator can conveniently take, apply force and operate. And first butt joint section 122 and second butt joint section 222 are close to first centre gripping section 13 and second centre gripping section 23 respectively, and the effect of dodging can be played in the narrower of setting, increases the visual scope in art field, promotes the security.

The widths of the first handheld section 121 and the second handheld section 221 are both greater than or equal to 6 mm and less than or equal to 8 mm; the widths of the first docking section 122 and the second docking section 222 are both greater than or equal to 1.5 millimeters and less than or equal to 2 millimeters. The width of the first holding section 121 and the second holding section 221 is between 6 mm and 8 mm, which not only facilitates holding and operation, but also controls the weight and volume of the pterygium clamp 100 as much as possible, so that the holding and weight are in a more balanced state. The width of the first docking section 122 and the second docking section 222 is 1.5 mm to 2 mm, which can effectively avoid the situation and avoid blocking the sight of the operator.

Illustratively, the width of each of the first and second docking portions is about 2 mm, the length of each of the first and second docking portions is about 10 mm, and the length of each of the first and second holding sections 121 and 221 is about 20 mm. The first fixing section 11 and the second fixing section 21 are both about 30 mm long and about 6 mm wide. The size design can lead the whole weight and the volume to be moderate, is convenient for operators to take and operate, and leads the operation process to have good operation visual field and operability.

In some embodiments, the first clamping section 13 and the second clamping section 23 are each 1 millimeter wide. Therefore, the device avoids the situation that the visual field is not blocked, is convenient to operate, and has certain structural strength.

In some embodiments, the first clamping bar 10 and the second clamping bar 20 are each integrally formed of stainless steel. From this, can guarantee that pterygium presss from both sides 100 and has better rigidity to guarantee to press from both sides pterygium 200 through the counterforce, and convenient for material selection, the cost is lower, and is difficult for rustting, and structural strength is higher.

When an operator performs a pterygium 200 excision operation using the pterygium clip 100 provided in the present application, since the pterygium 200 grows in the subconjunctival layer of the eyeball, it is necessary to cut the surface layer, i.e., the bulboconjunctival layer, above the pterygium 200 when performing the pterygium 200 excision, and the smaller the cut is, the better the smaller the cut is, in order to reduce the damage to the eye and the recovery from the wound in the later stage during the pterygium 200 excision. Next, the pterygium 200 is separated from the surface layer, and the pterygium 200 is separated from the tissue of the deep layer, and after separation, the pterygium 200 is pulled out from the incision and excised.

However, since the shape of the pterygium 200 is often triangular or sector-shaped, and the width of the widest part of the pterygium 200 is generally longer than that of the incision, the pterygium 200 is pulled out directly from the incision, which tends to enlarge the conjunctival incision, resulting in an increase in the area required for the graft and difficulty in suturing. Therefore, the operator can operate using the pterygium clip 100 provided in the present embodiment to avoid the enlargement of the incision. The two pterygium clips 100 provided in the embodiments of the present application are preferably used to cut the pterygium 200 width within the wound width.

Specifically, the operator can place each pterygium clip 100 at one end of the incision along the length of the incision so that the first holding plate 14 and the second holding plate 24 are parallel to the incision and toward the other end of the incision, and then, the operator applies a pinching force to the first force application section 12 and the second force application section 22 so that the first holding plate 14 and the second holding plate 24 are opened, and after a certain pterygium 200 is clipped, the pterygium clip 100 is naturally clipped, thereby limiting the width of the pterygium 200 from one end of the incision. Next, the operator places another pterygium clip 100 at the other end of the incision so that the first holding plate 14 and the second holding plate 24 are parallel to the incision and toward the one end of the incision, and similarly performs the above-described operation, thereby limiting the width of the pterygium 200 from the other end of the incision. Since the pterygium clamps 100 are respectively placed at both ends of the incision, a protection region composed of the first holding plate 14 and the second holding plate 24 is formed at the incision, the pterygium 200 is pulled out from the protection region, and the width direction of the pterygium 200 is restricted by the first holding plate 14 and the second holding plate 24, thereby protecting the incision.

In one embodiment, during the process of pulling out the pterygium 200, since the first holding section 13 and the second holding section 23 intersect each other at approximately the two ends of the cut, the intersection point of the first holding section 13 and the second holding section 23 can protect the two ends of the cut when the pterygium 200 is pulled out. Specifically, the diameter of the inside of the pterygium 200 is larger than that of the notch, and the pterygium 200 is pressed by the intersection point of the first clamping section 13 and the second clamping section 23 when passing through the first clamping section 13 and the second clamping section 23 in the process that the pterygium 200 is pulled out of the notch, so that the pterygium 200 is gathered to the middle of the notch and pulled out under the condition of being pressed, and in the process, the two ends of the notch can be ensured not to be torn due to the intersection protection of the first clamping section 13 and the second clamping section 23.

In one embodiment, due to the leverage of the spacer 21 disposed between the first and second fixed sections 11, 23, the clamping force between the first and second clamping sections 13, 23 is large enough to avoid retraction of the pterygium 200, so that medical personnel can perform pterygium 200 excision in an orderly manner, giving the medical personnel sufficient time to check whether all the pterygium 200 is pulled out, and ensuring that the pterygium 200 is excised cleanly.

The construction, features and functions of the present application are described in detail in the embodiments illustrated in the drawings, but the present application is not limited to the embodiments illustrated in the drawings, and all equivalent embodiments modified or equivalent according to the concept of the present application are within the scope of the present application.

Claims (10)

1. A pterygium clip, comprising: the clamping device comprises a first clamping rod and a second clamping rod;

the first clamping rod comprises a first fixing section, a first force application section, a first clamping section and a first clamping plate which are fixed in sequence, and the second clamping rod comprises a second fixing section, a second force application section, a second clamping section and a second clamping plate which are fixed in sequence; one end of the first clamping plate is vertically and fixedly connected with one end of the first clamping section, which is far away from the first force application section; one end of the second clamping plate is vertically and fixedly connected with one end of the second clamping section, which is far away from the second force application section; the first clamping plate and the second clamping plate are arranged in parallel; one end of the first fixing section, which is far away from the first force application section, and one end of the second fixing section, which is far away from the second force application section, are fixedly connected at least partially, and the thickness of the fixedly connected part is larger than that of the part, which is not fixedly connected, of the first fixing section and the second fixing section; the first clamping section and the second clamping section are mutually crossed; the pterygium clip has a natural state and an open state;

in the natural state, a fixed distance is reserved between the first force application section and the second force application section, and the first clamping plate and the second clamping plate are close to each other; in the open state, the fixed distance between the first force application section and the second force application section is reduced, and the first clamping plate and the second clamping plate are far away from each other.

2. The pterygium clip of claim 1, wherein the first clamping plate has a first clamping plane facing the second clamping plate, the second clamping plate has a second clamping plane facing the first clamping plate; in the natural state, the first clamping plane and the second clamping plane are close to each other; in the open state, the first and second clamping planes are spaced apart from each other.

3. The pterygium clip of claim 2, wherein an end of the first clamping plate distal from the first clamping section is provided with a mating protrusion, and an end of the second clamping plate distal from the first clamping section is provided with a mating groove; in the natural state, the butt joint bulge of the first clamping plate is inserted into the butt joint groove of the second clamping plate, and the butt joint groove of the second clamping plate is inserted into the butt joint bulge of the first clamping plate.

4. The pterygium clip of claim 2, wherein a first clipping skid is provided on the first clipping plane, and a second clipping skid is provided on the second clipping plane; in the natural state, the first and second clamping skids are used for contacting with the pterygium respectively.

5. The pterygium clip of claim 1, wherein the first force application segment comprises a first holding segment and a first interfacing segment fixedly connected, the first holding segment being connected to the first fixing segment, the first interfacing segment being connected to the first clamping segment; the second force application section comprises a second holding section and a second butt-joint section which are fixedly connected, the second holding section is connected with the second fixing section, and the second butt-joint section is connected with the second clamping section.

6. The pterygium clip of claim 5, wherein a side of the first handheld section facing away from the second handheld section is provided with a first handheld anti-skid pattern, and a side of the second handheld section facing away from the first handheld section is provided with a second handheld anti-skid pattern.

7. The pterygium clip of claim 5, wherein the width of the first holding section is greater than the width of the first docking section and the width of the second holding section is greater than the width of the second docking section.

8. The pterygium clip of claim 5, wherein the width of each of the first and second holding segments is greater than or equal to 6 millimeters and less than or equal to 8 millimeters; the width of each of the first butt-joint section and the second butt-joint section is greater than or equal to 1.5 millimeters and less than or equal to 2 millimeters.

9. The pterygium clip of any of claims 1-8, wherein the first and second clip segments are each 1 mm wide.

10. The pterygium clip of any of claims 1-8, wherein the first and second clamping rods are each integrally formed of hard stainless steel.

Images