CN111513915B - Hook-shaped suture needle for ophthalmology department - Google Patents
Hook-shaped suture needle for ophthalmology department Download PDFInfo
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- CN111513915B CN111513915B CN202010354022.3A CN202010354022A CN111513915B CN 111513915 B CN111513915 B CN 111513915B CN 202010354022 A CN202010354022 A CN 202010354022A CN 111513915 B CN111513915 B CN 111513915B
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
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Abstract
The invention belongs to the technical field of medical equipment, in particular to an ophthalmologic hook-shaped suture needle; comprises an arc-shaped rod, a sliding rod, a tip and a fixing unit; the fixing unit is arranged on the outer side wall of the sliding rod and comprises a lantern ring and an elastic sheet; the elastic pieces are symmetrically arranged at the end parts of the sliding rods, and when the elastic pieces are not restrained by external force, the elastic pieces have bending angles far away from each other; the lantern ring is connected to the outer side wall of the sliding rod in a sliding manner; the fixing effect on the suture line is realized through the matching of the arc-shaped rod, the sliding rod, the tip and the fixing unit; the shell fragment contacts each other under the constraint of the lantern ring to realized the tight effect of clamp to the suture end, prevented that the suture from the condition of knoing at suture needle tail end, avoid the injury that the knot that the suture was beaten caused patient's wound among the suturing process, reduce the size of suturing the wound, reduced the pain of patient in the operation process.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to an ophthalmologic hook-shaped suture needle.
Background
The eyes are the window of soul and also the tool for human to observe the world; the eyes sometimes need to undergo surgery, such as surgery to open the corners of the eyes or to make the skin of the eyes, and these surgeries almost always require the use of wound closure tools; the ophthalmology is called as ophthalmology department, and is the subject for researching diseases related to the visual system including eyeballs and tissues related to the eyeballs; in ophthalmology, various ophthalmic diseases such as vitreous body, retinal diseases, ocular optics, glaucoma, optic neuropathy, cataract and the like are generally researched.
Some technical schemes related to the ophthalmic hook-shaped suture needle also appear in the prior art, for example, a Chinese patent with application number 2013201893993 discloses an ophthalmic hook-shaped suture needle, wherein the tail part of the needle body is connected with an integrated handle through a zigzag bent body, and the front end of the needle body is provided with a hook needle head with a needle hole; the utility model is mainly used for the dacryocystitis treatment of ophthalmology patients in hospitals, and is used for the nasolacrimal canal suture operation, because the hook needle structure with the needle hole is adopted, and the zigzag crutch body is adopted to connect the handle, the utility model is very suitable for the operation with deep and small wound, the structure is scientific and reasonable, the operation time is accelerated, and the pain of the patients is relieved; however, the technical scheme does not solve the problem of threading of the suture needle, and in the use process, the threading of the suture needle is too troublesome due to the small size of the suture needle; when a small wound is met, single-thread suturing needs to be selected, and the end of the suture thread is tied to the tail end of the suturing needle, so that the contact friction force between the suturing needle and the skin of a patient in the suturing process is increased, the wound is sutured, and meanwhile pain is brought to the patient.
Disclosure of Invention
In order to make up the deficiency of the prior art, solve in the course of using, because the size of the suture needle is smaller, the threading of the suture needle is too troublesome; when a small wound is met, single-thread suturing is needed, and the end of a suture line is tied to the tail end of a suturing needle, so that the contact friction force between the suturing needle and the skin of a patient in the suturing process is increased, the wound is sutured, and meanwhile, the pain problem is brought to the patient; the invention provides an ophthalmologic hook-shaped suture needle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an ophthalmologic hook-shaped suture needle which comprises an arc-shaped rod, a sliding rod, a tip end and a fixing unit, wherein the arc-shaped rod is fixed on the top of the sliding rod; the sliding rod is arranged at the tail end of the arc-shaped rod; the tip is arranged at the top end of the arc-shaped rod; the fixing unit is arranged on the outer side wall of the sliding rod and comprises a lantern ring and an elastic sheet; the elastic pieces are symmetrically arranged at the end parts of the sliding rods, and when the elastic pieces are not restrained by external force, the elastic pieces have bending angles far away from each other; the lantern ring is connected to the outer side wall of the sliding rod in a sliding mode; the fixing effect on the suture line is realized through the matching of the arc-shaped rod, the sliding rod, the tip and the fixing unit; when the single-thread suture needle is used, when single-thread suture needs to be performed, the lantern ring is pushed to slide on the outer side wall of the sliding rod in the direction far away from the elastic sheets, so that the lantern ring does not generate binding force on the elastic sheets, the elastic sheets restore to the shapes in the directions far away from each other under the action of the elastic force of the elastic sheets, medical personnel insert the end parts of the suture threads into the elastic sheets at the moment, then push the lantern ring to slide in the direction close to the elastic sheets, so that the elastic sheets are elastically deformed in the directions close to each other through the lantern ring, the lantern ring is completely sleeved on the outer side wall of the elastic sheets, the elastic sheets are contacted with each other under the binding of the lantern ring, the clamping effect on the end parts of the suture threads is realized, the condition that the suture threads are knotted at the tail end of the suture needle is prevented, the damage to the wound of a patient caused by the, reduce the size of the suture wound and reduce the pain of the patient during the operation.
Preferably, the elastic pieces are symmetrically provided with bulges on the side walls which are far away from each other; the inner side wall of the lantern ring is provided with a groove with the size matched with that of the protrusion; the situation that the lantern ring slides in the sewing process is avoided through the matching of the elastic sheet, the bulge, the lantern ring and the groove; during the use, when needs carry out the single thread and sew up, promote the lantern ring and slide to the direction of keeping away from the shell fragment at the slide bar lateral wall, thereby make the lantern ring no longer produce the constraint power to the shell fragment, the shell fragment then resumes the shape to the direction of keeping away from each other under the elastic force of self, medical personnel inserts the stylolite tip between the shell fragment this moment, promote the lantern ring again this moment, make the lantern ring slide to the direction of being close to the shell fragment, thereby exert the constraint power to the shell fragment through the lantern ring, slide to when the shell fragment lateral wall is overlapped completely when the lantern ring, the arch is located the recess this moment, thereby realize the fixed to lantern ring position through the cooperation of arch and recess, avoid sewing up the in-process, the lantern ring takes place gliding condition on the slide bar surface, thereby guaranteed the fixed effect to the suture, prevent that the.
Preferably, a cleaning unit is mounted on the outer side wall of the sliding rod; the cleaning unit comprises an extrusion ring, a sliding block and a sliding strip; the extrusion ring is arranged on the outer side wall of the sliding rod close to the arc-shaped rod; the sliding block is connected between the inner side wall of the extrusion ring and the outer side wall of the sliding rod in a sliding manner through an elastic rope; the sliding strip is arranged on the outer side wall of the sliding block close to the lantern ring; the blood is prevented from coagulating on the outer side wall of the slide bar to form blood scabs through the matching of the extrusion ring, the slide block and the slide bar; when the elastic suture ring is used, when the lantern ring slides to be completely sleeved on the outer side wall of the elastic sheet, the sliding rod is in an exposed state on the outer side wall close to the arc-shaped rod, blood is easy to form blood scabs after being solidified on the outer side wall of the sliding rod, and the suture resistance of a suture needle is increased; when the suture needle penetrates out of the wound of a patient, the extrusion ring is not extruded any more, and then the sliding block drives the sliding strip to reset under the elastic action of the elastic rope, so that the sliding strip slides on the outer side wall of the sliding rod repeatedly, the cleaning effect on the outer side wall of the sliding rod is realized, and the condition that blood is solidified on the outer side wall of the sliding rod is avoided.
Preferably, the inner side walls of the elastic sheets close to each other are symmetrically provided with a plurality of sawteeth, and when the elastic sheets are contacted with each other, the sawteeth can be meshed with each other, so that the fixing effect on the suture line is improved; when the single-thread sewing machine is used, when single-thread sewing needs to be carried out, the lantern ring is pushed to slide on the outer side wall of the sliding rod in the direction far away from the elastic sheets, so that the lantern ring does not generate binding force on the elastic sheets, the elastic sheets restore to the shapes in the directions far away from each other under the action of the elastic force of the elastic sheets, the end parts of the sewing threads are inserted between the elastic sheets by medical personnel at the moment, the lantern ring is pushed again to slide in the direction close to the elastic sheets, so that the binding force is exerted on the elastic sheets through the lantern ring, the elastic sheets are elastically deformed in the directions close to each other until the lantern ring is completely sleeved on the outer side wall of the elastic sheets, at the moment, the elastic sheets are contacted with each other under the binding of the lantern ring, so that the clamping effect on the end parts of the sewing threads is realized, in the process that the, further avoiding the situation that the suture end slips off the tail end of the suture needle during the sewing process.
Preferably, the slide bar is in a barb shape, and the bending direction of the end part of the slide bar points to the slide bar, so that the end part of the slide bar is always contacted with the outer side wall of the slide bar, the cleaning effect of the slide bar is improved, and meanwhile, the friction force between the slide bar and the skin of a patient is reduced; when the cleaning device is used, the sliding strip slides in a reciprocating manner on the surface of the sliding rod under the action of the sliding block, so that the cleaning effect on the surface of the sliding rod is realized, and after the sliding strip is in the shape of a barb, the scraping effect on the surface of the sliding rod can be realized in the sliding process of the sliding strip, so that the cleaning effect of the sliding strip on the surface of the sliding rod is enhanced; simultaneously, because the crooked direction of the tip of draw runner points to the slide bar for the tip of draw runner is comparatively slick and sly, thereby reduces the contact frictional force of draw runner and patient's wound lateral wall, and can effectively reduce the extrusion effect of draw runner to patient's wound, further strengthens the holistic result of use of sewing needle, reduces the painful sense of patient in the wound suturing process.
Preferably, the inner side wall of the lantern ring close to the elastic sheet is tapered, so that the diameter of the end part of the inner side wall of the lantern ring close to the elastic sheet is smaller than that of the sliding rod, and the fixing effect of the lantern ring on the elastic sheet is enhanced; when the single-wire stitching device is used, when single-wire stitching is needed, the lantern ring is pushed to slide on the outer side wall of the sliding rod in the direction away from the elastic sheets, so that the lantern ring does not generate binding force on the elastic sheets, the elastic sheets restore to the shapes in the directions away from each other under the action of self elasticity, at the moment, medical personnel insert the end parts of the stitching lines between the elastic sheets, then push the lantern ring to slide in the direction close to the elastic sheets, so that the binding force is applied to the elastic sheets through the lantern ring, the elastic sheets elastically deform in the directions close to each other until the lantern ring is completely sleeved on the outer side wall of the elastic sheets, at the moment, the elastic sheets contact with each other under the binding of the lantern ring, so that the clamping effect on the end parts of the stitching lines is realized, after the inner side wall of the lantern ring close to the, the binding force of the lantern ring to the elastic sheet is increased, so that the clamping effect of the elastic sheet to the suture is further enhanced.
The invention has the following beneficial effects:
1. according to the ophthalmologic hook-shaped suture needle, the suture line is fixed through the cooperation of the arc-shaped rod, the sliding rod, the tip end and the fixing unit, the condition that the suture line is knotted at the tail end of the suture needle is prevented, the wound of a patient is prevented from being damaged by the knot which is knotted by the suture line in the suture process, the friction force between the suture needle and the surface of the wound of the patient and the suture line in the suture process is reduced, the size of the wound is reduced, and the pain of the patient in the operation process is reduced.
2. According to the ophthalmologic hook-shaped suture needle, blood is prevented from being coagulated on the outer side wall of the sliding rod to form blood scabs through the matching of the extrusion ring, the sliding block and the sliding strip, and the sliding strip is driven by the sliding block to slide on the outer side wall of the sliding rod when the suture needle is threaded into a wound of a patient; when the suture needle penetrates out of the wound of the patient, the slider drives the sliding strip to reset under the elastic action of the elastic rope, so that the sliding strip slides on the outer side wall of the sliding rod repeatedly, the cleaning effect on the outer side wall of the sliding rod is realized, and the condition that blood is coagulated on the outer side wall of the sliding rod is avoided.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
in the figure: the device comprises an arc-shaped rod 1, a sliding rod 2, a tip 3, a fixing unit 4, a collar 41, a groove 411, a spring plate 42, a protrusion 421, a sawtooth 422, a cleaning unit 5, a squeezing ring 51, a sliding block 52 and a sliding strip 53.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, an ophthalmologic hook-shaped suture needle according to the present invention includes an arc-shaped shaft 1, a slide bar 2, a tip 3, and a fixing unit 4; the sliding rod 2 is arranged at the tail end of the arc-shaped rod 1; the tip 3 is arranged at the top end of the arc-shaped rod 1; the fixing unit 4 is arranged on the outer side wall of the sliding rod 2, and the fixing unit 4 comprises a lantern ring 41 and an elastic sheet 42; the elastic pieces 42 are symmetrically arranged at the end part of the sliding rod 2, and when the elastic pieces 42 are not restrained by external force, the elastic pieces 42 have bending angles which are far away from each other; the lantern ring 41 is connected to the outer side wall of the sliding rod 2 in a sliding mode; the fixing effect on the suture line is realized through the matching of the arc-shaped rod 1, the sliding rod 2, the tip 3 and the fixing unit 4; when the single-thread suture is needed, the lantern ring 41 is pushed to slide on the outer side wall of the sliding rod 2 in the direction away from the elastic sheets 42, so that the lantern ring 41 does not generate binding force on the elastic sheets 42 any more, the elastic sheets 42 restore to the shapes in the directions away from each other under the action of the elastic force of the elastic sheets 42, the suture end is inserted between the elastic sheets 42 by medical personnel at the moment, the lantern ring 41 is pushed again, so that the lantern ring 41 slides in the direction close to the elastic sheets 42, the binding force is applied to the elastic sheets 42 through the lantern ring 41, the elastic sheets 42 elastically deform in the directions close to each other until the lantern ring 41 is completely sleeved on the outer side wall of the elastic sheets 42, the elastic sheets 42 are contacted with each other under the binding of the lantern ring 41, the clamping effect on the suture end is realized, the knotting of the suture at the tail end of a suture needle is prevented, the friction force between the suture needle and the surface of the wound of the patient during the suture process is reduced, the size of the suture wound is reduced, and the pain of the patient during the operation process is reduced.
As an embodiment of the present invention, the elastic sheet 42 is symmetrically provided with protrusions 421 on the side walls away from each other; the inner side wall of the lantern ring 41 is provided with a groove 411 which is matched with the protrusion 421 in size; the situation that the collar 41 slides in the sewing process is avoided through the matching of the elastic sheet 42, the protrusion 421, the collar 41 and the groove 411; when in use, when a single-thread suture is required, the lantern ring 41 is pushed to slide on the outer side wall of the sliding rod 2 in the direction away from the elastic sheet 42, so that the lantern ring 41 does not generate a binding force on the elastic sheets 42 any more, the elastic sheets 42 restore to the shape in the direction away from each other under the action of the elastic force of the elastic sheets, at the moment, the medical staff inserts the end part of the suture line between the elastic sheets 42, at the moment, the lantern ring 41 is pushed, the lantern ring 41 slides towards the direction close to the elastic sheets 42, so that the elastic sheet 42 is constrained by the collar 41, when the collar 41 is slid to be completely fitted on the outer side wall of the elastic sheet 42, the protrusion 421 is located in the groove 411, therefore, the position of the collar 41 is fixed through the matching of the protrusion 421 and the groove 411, the situation that the collar 41 slides on the surface of the sliding rod 2 in the sewing process is avoided, thereby ensuring the fixing effect of the suture and preventing the suture from influencing the wound after slipping from the tail end of the suture needle.
As an embodiment of the invention, a cleaning unit 5 is installed on the outer side wall of the sliding rod 2; the cleaning unit 5 comprises a pressing ring 51, a sliding block 52 and a sliding strip 53; the extrusion ring 51 is arranged on the outer side wall of the sliding rod 2 close to the arc-shaped rod 1; the sliding block 52 is connected between the inner side wall of the extrusion ring 51 and the outer side wall of the sliding rod 2 in a sliding way through an elastic rope; the slide bar 53 is mounted on the outer side wall of the slide block 52 close to the collar 41; the cooperation of the pressing ring 51, the sliding block 52 and the sliding strip 53 prevents blood from coagulating to form blood scabs on the outer side wall of the sliding rod 2; when the suture needle is used, when the lantern ring 41 is completely sleeved on the outer side wall of the elastic sheet 42 in a sliding mode, the sliding rod 2 is in an exposed state on the outer side wall close to the arc-shaped rod 1, blood is easy to form scabs after being solidified on the outer side wall of the sliding rod 2 at the moment, and the suture resistance of the suture needle is increased, so that the cleaning unit 5 is installed on the outer side wall of the sliding rod 2, when the suture needle penetrates into a wound of a patient, the extrusion ring 51 is extruded, the sliding block 52 is pushed to slide in the direction of the lantern ring 41 after overcoming the tensile force of the elastic rope, and the sliding strip 53 is driven to slide on the outer side wall of; when the suture needle penetrates out of the wound of the patient, the extrusion ring 51 is not extruded any more, and the sliding block 52 drives the sliding strip 53 to reset under the elastic action of the elastic rope, so that the sliding strip 53 slides on the outer side wall of the sliding rod 2 repeatedly, the cleaning effect on the outer side wall of the sliding rod 2 is realized, and the condition that blood is coagulated on the outer side wall of the sliding rod 2 is avoided.
As an embodiment of the present invention, the elastic sheet 42 is symmetrically provided with a plurality of saw teeth 422 on the inner side walls close to each other, and when the elastic sheets 42 are in contact with each other, the saw teeth 422 can be engaged with each other, so as to increase the fixing effect on the suture line; when the single-thread suture is needed, the lantern ring 41 is pushed to slide on the outer side wall of the sliding rod 2 in the direction away from the elastic sheets 42, so that the lantern ring 41 does not generate binding force on the elastic sheets 42 any more, the elastic sheets 42 restore to the shapes in the directions away from each other under the action of self elasticity, at the moment, medical staff insert the suture end into the elastic sheets 42, at the moment, the lantern ring 41 is pushed again, so that the lantern ring 41 slides in the direction close to the elastic sheets 42, the binding force is applied to the elastic sheets 42 through the lantern ring 41, the elastic sheets 42 elastically deform in the directions close to each other until the lantern ring 41 is completely sleeved on the outer side wall of the elastic sheets 42, at the moment, the elastic sheets 42 are contacted with each other under the binding of the lantern ring 41, so that the clamping effect on the suture end is realized, in the process that the elastic sheets 42 are contacted with each other, the sawtooth 422 of the side wall of the, the fixing effect on the end part of the suture is enhanced, and the condition that the end part of the suture slips from the tail end of the suture needle in the sewing process is further avoided.
As an embodiment of the present invention, the slide bar 53 is in a barb shape, and the bending direction of the end of the slide bar 53 is directed to the slide bar 2, so that the end of the slide bar 53 is always in contact with the outer side wall of the slide bar 2, thereby increasing the cleaning effect of the slide bar 53 and reducing the friction force between the slide bar 53 and the skin of the patient; when the cleaning device is used, the sliding strip 53 slides in a reciprocating manner on the surface of the sliding rod 2 under the action of the sliding block 52, so that the cleaning effect on the surface of the sliding rod 2 is realized, and after the sliding strip 53 is in a barb shape, the scraping effect on the surface of the sliding rod 2 can be realized in the sliding process of the sliding strip 53, so that the cleaning effect of the sliding strip 53 on the surface of the sliding rod 2 is enhanced; meanwhile, the bending direction of the end part of the sliding strip 53 points to the sliding rod 2, so that the end part of the sliding strip 53 is smooth, the contact friction force between the sliding strip 53 and the outer side wall of the wound of the patient is reduced, the extrusion effect of the sliding strip 53 on the wound of the patient can be effectively reduced, the overall use effect of the suture needle is further enhanced, and the pain of the patient in the wound suture process is reduced.
As an embodiment of the invention, the inner side wall of the collar 41 close to the elastic sheet 42 is tapered, so that the diameter of the end part of the inner side wall of the collar 41 close to the elastic sheet 42 is smaller than that of the slide rod 2, thereby enhancing the fixing effect of the collar 41 on the elastic sheet 42; when the single-thread suture is needed, the lantern ring 41 is pushed to slide on the outer side wall of the sliding rod 2 in the direction away from the elastic sheets 42, so that the lantern ring 41 does not generate binding force on the elastic sheets 42 any more, the elastic sheets 42 restore to the shapes in the directions away from each other under the action of self elasticity, at the moment, medical staff insert the end parts of the suture lines into the elastic sheets 42, at the moment, the lantern ring 41 is pushed again, so that the lantern ring 41 slides in the direction close to the elastic sheets 42, the binding force is applied to the elastic sheets 42 through the lantern ring 41, the elastic sheets 42 elastically deform in the directions close to each other until the lantern ring 41 is completely sleeved on the outer side wall of the elastic sheets 42, at the moment, the elastic sheets 42 contact with each other under the binding of the lantern ring 41, so that the clamping effect on the end parts of the suture lines is realized, after the lantern ring 41 is tapered on, the interference fit between the collar 41 and the elastic sheet 42 increases the binding force of the collar 41 to the elastic sheet 42, thereby further enhancing the clamping effect of the elastic sheet 42 on the suture.
When the single-thread suture is needed, the lantern ring 41 is pushed to slide on the outer side wall of the sliding rod 2 in the direction away from the elastic sheets 42, so that the lantern ring 41 does not generate binding force on the elastic sheets 42 any more, the elastic sheets 42 restore to the shapes in the directions away from each other under the action of the elastic force of the elastic sheets 42, the suture end is inserted between the elastic sheets 42 by medical personnel at the moment, the lantern ring 41 is pushed again, so that the lantern ring 41 slides in the direction close to the elastic sheets 42, the binding force is applied to the elastic sheets 42 through the lantern ring 41, the elastic sheets 42 elastically deform in the directions close to each other until the lantern ring 41 is completely sleeved on the outer side wall of the elastic sheets 42, the elastic sheets 42 are contacted with each other under the binding of the lantern ring 41, the clamping effect on the suture end is realized, the knotting of the suture at the tail end of a suture needle is avoided, the friction force between the suture needle and the suture line and the wound surface of the patient is reduced in the suture process, the size of the suture wound is reduced, and the pain of the patient in the operation process is reduced; when the lantern ring 41 slides to be completely sleeved on the outer side wall of the elastic sheet 42, the protrusion 421 is located in the groove 411, so that the position of the lantern ring 41 is fixed through the matching of the protrusion 421 and the groove 411, the situation that the lantern ring 41 slides on the surface of the sliding rod 2 in the sewing process is avoided, the fixing effect of the suture is ensured, and the suture is prevented from influencing a wound after slipping from the tail end of the suture needle; when the lantern ring 41 is completely sleeved on the outer side wall of the elastic sheet 42 in a sliding mode, the sliding rod 2 is in an exposed state on the outer side wall close to the arc-shaped rod 1, blood is easy to form blood scabs after being coagulated on the outer side wall of the sliding rod 2 at the moment, and the suture resistance of the suture needle is increased, so that the cleaning unit 5 is installed on the outer side wall of the sliding rod 2, when the suture needle penetrates into a wound of a patient, the extrusion ring 51 is extruded, the sliding block 52 is pushed to slide in the direction of the lantern ring 41 after overcoming the tensile force of the elastic rope, and the sliding strip 53 is driven to slide on the outer side wall of the sliding rod; when the suture needle penetrates out of the wound of the patient, the extrusion ring 51 is not extruded any more, and the slide block 52 drives the slide bar 53 to reset under the elastic force action of the elastic rope, so that the slide bar 53 slides on the outer side wall of the slide bar 2 repeatedly, the cleaning effect on the outer side wall of the slide bar 2 is realized, and the blood is prevented from being coagulated on the outer side wall of the slide bar 2; in the process that the elastic pieces 42 are contacted with each other, the sawteeth 422 on the side walls of the elastic pieces 42 are driven to be meshed with each other, so that the friction force between the end part of the suture and the side walls of the elastic pieces 42 is enhanced through the sawteeth 422, the fixing effect on the end part of the suture is enhanced, and the condition that the end part of the suture slips from the tail end of the suture needle in the sewing process is further avoided; the sliding strip 53 slides in a reciprocating manner on the surface of the sliding rod 2 under the action of the sliding block 52, so that the cleaning effect on the surface of the sliding rod 2 is realized, and after the sliding strip 53 is set to be in a barb shape, the scraping effect on the surface of the sliding rod 2 can be realized in the sliding process of the sliding strip 53, so that the cleaning effect of the sliding strip 53 on the surface of the sliding rod 2 is enhanced; meanwhile, the bending direction of the end part of the sliding strip 53 points to the sliding rod 2, so that the end part of the sliding strip 53 is smooth, the contact friction force between the sliding strip 53 and the outer side wall of the wound of the patient is reduced, the extrusion effect of the sliding strip 53 on the wound of the patient can be effectively reduced, the overall use effect of the suture needle is further enhanced, and the pain of the patient in the wound suturing process is reduced; the shell fragment 42 contacts each other under the constraint of the lantern ring 41 to the tight effect of clamp to the suture end has been realized, after establishing the lantern ring 41 to the toper on being close to the inside wall of shell fragment 42, make the inside wall end diameter that the lantern ring 41 is close to the shell fragment 42 be less than the slide bar 2 diameter, be in interference fit between lantern ring 41 and the shell fragment 42 this moment, increased the constraint power of lantern ring 41 to shell fragment 42, thereby further strengthened the tight effect of clamp of shell fragment 42 to the suture.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. An ophthalmic hook-shaped suture needle, characterized in that: comprises an arc-shaped rod (1), a sliding rod (2), a tip (3) and a fixing unit (4); the sliding rod (2) is arranged at the tail end of the arc-shaped rod (1); the tip (3) is arranged at the top end of the arc-shaped rod (1); the fixing unit (4) is arranged on the outer side wall of the sliding rod (2), and the fixing unit (4) comprises a lantern ring (41) and an elastic sheet (42); the elastic sheets (42) are symmetrically arranged at the end part of the sliding rod (2), and when the elastic sheets (42) are not restrained by external force, the elastic sheets (42) have bending angles far away from each other; the lantern ring (41) is connected to the outer side wall of the sliding rod (2) in a sliding mode; the fixing effect on the suture line is realized through the matching of the arc-shaped rod (1), the sliding rod (2), the tip (3) and the fixing unit (4);
the side walls of the elastic sheets (42) which are far away from each other are symmetrically provided with bulges (421); the inner side wall of the lantern ring (41) is provided with a groove (411) with a size matched with the protrusion (421); the situation that the sleeve ring (41) slides in the sewing process is avoided through the matching of the elastic sheet (42), the bulge (421), the sleeve ring (41) and the groove (411);
the outer side wall of the sliding rod (2) is provided with a cleaning unit (5); the cleaning unit (5) comprises an extrusion ring (51), a sliding block (52) and a sliding strip (53); the extrusion ring (51) is arranged on the outer side wall of the sliding rod (2) close to the arc-shaped rod (1); the sliding block (52) is connected between the inner side wall of the extrusion ring (51) and the outer side wall of the sliding rod (2) in a sliding manner through an elastic rope; the sliding strip (53) is arranged on the outer side wall of the sliding block (52) close to the sleeve ring (41); the extrusion ring (51), the sliding block (52) and the sliding strip (53) are matched to prevent blood from coagulating on the outer side wall of the sliding rod (2) to form blood scabs;
the elastic sheet (42) is symmetrically provided with a plurality of saw teeth (422) on the inner side walls which are close to each other, and when the elastic sheet (42) is contacted with each other, the saw teeth (422) can be meshed with each other, so that the fixing effect on the suture line is increased.
2. The ophthalmic hook-shaped suture needle according to claim 1, wherein: the sliding strip (53) is in a barb shape, and the bending direction of the end part of the sliding strip (53) points to the sliding rod (2), so that the end part of the sliding strip (53) is always in contact with the outer side wall of the sliding rod (2), the cleaning effect of the sliding strip (53) is improved, and meanwhile, the friction force between the sliding strip and the skin of a patient is reduced.
3. The ophthalmic hook-shaped suture needle according to claim 1, wherein: the inner side wall of the lantern ring (41) close to the elastic sheet (42) is conical, so that the diameter of the end part of the inner side wall of the lantern ring (41) close to the elastic sheet (42) is smaller than that of the sliding rod (2), and the fixing effect of the lantern ring (41) on the elastic sheet (42) is enhanced.
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| CN202010354022.3A CN111513915B (en) | 2020-04-29 | 2020-04-29 | Hook-shaped suture needle for ophthalmology department |
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| CN202010354022.3A CN111513915B (en) | 2020-04-29 | 2020-04-29 | Hook-shaped suture needle for ophthalmology department |
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| CN111513915B true CN111513915B (en) | 2020-11-13 |
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| CN114699219A (en) * | 2021-10-31 | 2022-07-05 | 李海军 | Three loop posterior chamber type suture fixing suspension artificial lens and traction hook series |
| CN114176656A (en) * | 2021-11-10 | 2022-03-15 | 南京市河西医院有限公司 | Guide needle and method based on FiberLift face lifting repair |
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| JP2001333910A (en) * | 2000-05-30 | 2001-12-04 | Tomittsu:Kk | Medical suture needle |
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| CN110882023A (en) * | 2019-11-29 | 2020-03-17 | 广州科荟泽生物科技有限公司 | Surgical suture needle and suture device |
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| JP2001333910A (en) * | 2000-05-30 | 2001-12-04 | Tomittsu:Kk | Medical suture needle |
| CN203059945U (en) * | 2013-01-22 | 2013-07-17 | 叶明福 | Multifunctional dental floss clamp for oral cavity |
| CN206355087U (en) * | 2016-08-24 | 2017-07-28 | 李君久 | A kind of hernia needle |
| CN209951380U (en) * | 2019-03-22 | 2020-01-17 | 中国人民解放军联勤保障部队第九八九医院 | Electric coagulation pen convenient to clearance tool bit blood clot |
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