Integrated suction and perfusion self-closing ophthalmology paracentesis knife

Abstract

The invention discloses an integrated suction and perfusion self-closing ophthalmology paracentesis knife, and relates to the technical field of ophthalmology surgical instruments, the integrated suction and perfusion self-closing ophthalmology paracentesis knife comprises a handle part and a knife body installed at the end part of the handle part, and further comprises a silica gel self-closing valve connected to one end of the handle part in a sleeving manner, and the silica gel self-closing valve comprises a shell and a valve body installed in the shell; the integrated suction and perfusion self-closing ophthalmology paracentesis knife further comprises a connector installed outside the shell, the feeding end of the silica gel self-closing valve is connected with the suction pipeline and the perfusion pipeline, a silica gel part is installed on the inner wall of the outlet end of the connector, deformation panels are installed in the shell and the connector, an arc-shaped partition plate is arranged between the two deformation panels, and the arc-shaped partition plate is connected with the silica gel self-closing valve. Suction and perfusion work can enable the deformation panel to deform. Suction liquid and perfusion liquid flow along the corresponding suction flow channel and perfusion flow channel respectively, and the purpose of improving the operation efficiency and quality is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of ophthalmic surgical instruments, in particular to an integrated suction and irrigation self-closing ophthalmic puncture knife. Background Art

[0002] The integrated suction, irrigation and self-closing ophthalmic puncture knife is an advanced medical device designed for ophthalmic surgery. It integrates suction, irrigation and self-closing functions in one, providing a more convenient, accurate and safe operation method for ophthalmic surgery. This puncture knife is mainly used for eyeball puncture surgery, such as vitrectomy, intravitreal injection, etc., which can significantly improve the success rate of the operation and the recovery speed of the patient; During ophthalmic surgery, medical staff first perform epidermal anesthesia on the patient, then use an eyelid speculum to open the upper and lower eyelids, use fixed forceps to clamp the outer conjunctiva and fascia of the corneal margin on the opposite or same side of the puncture point to fix the eyeball, and use a sharp knife to make a half-penetrated horizontal incision 1mm inside the corneal margin above the temporal part, connect the syringe, and pierce the anterior chamber horizontally through the inner opening of the incision. Note that the bevel of the needle is facing downward to avoid damaging the iris. Slowly release the fixed forceps to ensure that the needle enters the anterior chamber, and then gently turn the bevel of the needle toward the cornea to prepare for subsequent operations. Through the established incision, use a No. 5 needle to connect the viscoelastic syringe, pierce the anterior chamber with the bevel downward, and slowly inject viscoelastic to expand the anterior chamber and protect the iris and lens. Use capsulotomy forceps to perform continuous circular capsulotomy on the anterior capsule, with a capsulotomy diameter of about 7mm. Subsequently, use an appropriate puncture knife (such as 3.2mm) to expand the main incision to The outer incision is 5.5mm in size, and the inner incision is about 6-7mm, forming a trapezoidal incision that is larger inside and smaller outside. An artificial lens positioning hook is used to rotate the lens nucleus from the capsular bag to the anterior chamber. Through the anterior chamber puncture, a puncture knife is used to split the lens nucleus and evenly divide it into two or more parts. The position of the lens nucleus is adjusted with viscoelastic, and the lens nucleus is clamped out one by one with the lens positioning hook and lens spoon. Balanced saline or viscoelastic is used to flush the anterior chamber to remove harmful substances in the anterior chamber, and then the lens is inserted.

[0003] During ophthalmic surgery, suction and irrigation operations are required in the surgical area. The suction operation mainly serves to remove impurities and secretions and maintain the depth of the anterior chamber, while irrigation serves to maintain intraocular pressure and protect eyeball tissue. However, during ophthalmic surgery, it often includes multiple stages, such as cutting the corneal limbus, entering the anterior chamber, capsulorhexis and expanding the incision, nuclear processing, etc., and some stages require corresponding irrigation and suction work. Generally speaking, suction and irrigation require replacement of joints to prevent cross infection. However, the replacement of joints will inevitably increase the operation time and the efficiency is relatively low. For this reason, we propose an integrated suction and irrigation self-closing ophthalmic puncture knife. Summary of the invention

[0004] The purpose of the present invention is to provide an integrated suction and irrigation self-closing ophthalmic puncture knife to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated suction and irrigation self-closing ophthalmic puncture knife, comprising a handle and a knife body installed at the end of the handle, and also comprising a silicone self-closing valve sleeved on one end of the handle, the silicone self-closing valve comprising an outer shell and a valve body installed inside the outer shell; the integrated suction and irrigation self-closing ophthalmic puncture knife also includes a joint installed on the outside of the outer shell, the feed end of the silicone self-closing valve is connected to the suction pipe and the irrigation pipe, and a silicone part is installed on the inner wall of the outlet end of the joint, and deformation panels are installed in the outer shell and the inside of the joint, and an arc-shaped partition is arranged between the two deformation panels, and the suction and irrigation operation can cause the deformation panel to deform.

[0006] Preferably, both ends of the silicone part are fixedly connected to the inner wall of the joint, the cross-section of the silicone part is arranged in an arc shape, and the radius of the two ends of the silicone part is greater than the radius of the middle area thereof.

[0007] Preferably, the silicone part is a memory-resilient silicone product, the cross-section of the silicone part is arc-shaped and is arranged to expand toward the outside of the joint, and one end of the silicone part is fixedly connected to the inner wall of the joint, and the other end of the silicone part is close to the axis of the joint and bent toward the inside of the joint.

[0008] Preferably, the arc-shaped partition separates the area between the two deformable panels into a suction channel and an injection channel.

[0009] Preferably, the deformable panel comprises a perfusion deformation area for perfusion and a suction deformation area for suction which cooperate with each other.

[0010] Preferably, an annular baffle fixedly connected to the inner wall of the joint is provided on one side of the suction deformation area. Relative to the suction deformation area, the annular baffle is close to the joint outlet end, and the annular baffle is in contact with the suction deformation area.

[0011] Preferably, an arc-shaped plate frame fixedly connected to the inner wall of the joint is provided on one side of the perfusion deformation area, and relative to the arc-shaped plate frame, the perfusion deformation area is close to the outlet end of the joint.

[0012] Preferably, the joint and the housing are connected via a plastic threaded sleeve.

[0013] Preferably, the deformation panel is made of medical memory alloy.

[0014] Preferably, the outer wall of the perfusion deformation area is arranged in an arc shape.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes a joint and a silicone self-closing valve to connect the irrigation pipeline and the suction pipeline, so that there is no need to replace the joint during the irrigation and suction operations. At the same time, an arc-shaped partition is used to separate the area between the deformation panels into a suction channel and an irrigation channel, and the deformation panel is deformed according to the suction force and the irrigation force, so that the suction liquid and the irrigation liquid flow along the corresponding suction channel and irrigation channel respectively. Through the structural design of the present invention, irrigation and suction work can be carried out without replacing the joint, and the suction liquid and the irrigation liquid flow along different channels respectively, thereby achieving the purpose of improving surgical efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the silicone self-closing valve and the joint of the present invention; Figure 3 It is a schematic diagram of the suction flow channel and the perfusion flow channel of the present invention; Figure 4 It is a schematic diagram of the structure of the arc partition and the deformation panel of the present invention; Figure 5 It is a schematic diagram of the structure of the deformation panel of the present invention; Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure of the area at center A; Figure 7 This is a schematic diagram of the front structure of the deformation panel of the present invention; Figure 8 This is a schematic diagram of the deformation structure of the suction deformation area of ​​the present invention; Fig. 9 This is a schematic diagram of the structure of the silica gel portion of the present invention; Fig.10 This is another structural schematic diagram of the silicone rubber portion of the present invention.

[0017] In the figure: 1. handle; 2. blade body; 3. silicone self-closing valve; 31. shell; 32. valve body; 4. joint; 41. annular baffle; 42. arc plate frame; 5. silicone part; 6. deformation panel; 61. perfusion deformation area; 62. suction deformation area; 7. arc partition; 71. suction flow channel; 72. perfusion flow channel; 8. plastic threaded sleeve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-10 The present invention provides a technical solution: an integrated suction and irrigation self-closing ophthalmic puncture knife. The present invention makes corresponding improvements to the technical problems in the background technology. During ophthalmic surgery, corresponding suction and irrigation operations need to be performed, and corresponding joints need to be replaced during the operation. The present invention uses a joint to achieve irrigation and suction work, including a handle 1 and a knife body 2 installed at the end of the handle 1, one end of the knife body 2 is usually designed to be sharp, and the integrated suction and irrigation self-closing ophthalmic puncture knife also includes a silicone self-closing valve 3 sleeved on one end of the handle 1, and the silicone self-closing valve 3 includes an outer shell 31 and a valve body 32 installed inside the outer shell 31. Furthermore, the integrated suction and irrigation self-closing ophthalmic puncture knife also includes a connector 4 installed on the outside of the shell 31, the feed end of the silicone self-closing valve 3 is connected to the suction pipe and the irrigation pipe, and a silicone portion 5 is installed on the inner wall of the outlet end of the connector 4, and a deformation panel 6 is installed inside the shell 31 and the connector 4, and an arc partition 7 is arranged between the two deformation panels 6, and the suction and irrigation operations can cause the deformation panel 6 to deform. The silicone self-closing valve 3 can be connected to the suction pipeline and the irrigation pipeline. During the specific operation, the silicone self-closing valve 3 is sleeved on the handle 1, and then the knife body 2 passes through the silicone self-closing valve 3 and the connector 4 for surgical operation. After the operation is completed, the knife body 2 withdraws from the connector 4 and the silicone self-closing valve 3, and then the irrigation pipeline or the suction pipeline is connected according to demand. Since the suction pipeline and the irrigation pipeline share a connector 4, in order to avoid the suction material remaining in the connector 4 from being flushed out during the irrigation process, the present invention is designed as follows: a silicone part 5 is installed on the inner wall of the connector 4 near the outlet end, and a deformation panel 6 is installed inside the outer shell 31 and the connector 4, and an arc partition 7 is arranged between the deformation panel 6. The suction and irrigation work can cause the deformation panel 6 to deform. The deformation panel 6 in the present invention is made of medical memory alloy material and can be deformed when subjected to force. When the deformation panel 6 is deformed, there will be a gap between it and the inner wall of the connector 4.

[0020] Combined with Figure 3As shown, the arc partition 7 divides the area between the two deformation panels 6 into a suction channel 71 and an injection channel 72, and the joint 4 and the outer shell 31 are connected by a plastic threaded sleeve 8, so that the joint 4 and the outer shell 31 are detachably connected, and the two ends of the arc partition 7 are respectively located inside the joint 4 and the outer shell 31, and the connection between the joint 4 and the outer shell 31 is used as a dividing line. The arc partition 7 located inside the two will be fixedly connected to the corresponding middle area of ​​the deformation panel 6, and when the joint 4 and the outer shell 31 are installed, the arc baffle located inside the joint 4 and the outer shell 31 will fit tightly.

[0021] Combined with Figure 4-8 As shown, the deformation panel 6 includes a perfusion deformation area 61 for perfusion and a suction deformation area 62 for suction, wherein the outer wall of the perfusion deformation area 61 is arranged in an arc shape and contacts the joint 4 or the outer wall, wherein an annular baffle plate 41 fixedly connected to the inner wall of the joint 4 is arranged on one side of the suction deformation area 62, and relative to the suction deformation area 62, the annular baffle plate 41 is close to the outlet end of the joint 4, and the annular baffle plate 41 is in contact with the suction deformation area 62, and an arc plate frame 42 fixedly connected to the inner wall of the joint 4 is arranged on one side of the perfusion deformation area 61, and relative to the arc plate frame 42, the perfusion deformation area 61 is close to the outlet end of the joint 4.

[0022] In the above, during the suction operation, the suction pipe generates an attraction force on the deformation panel 6 located inside the housing 31 and the joint 4 in turn through the silicone self-closing valve 3. Since the deformation panel 6 is made of medical memory alloy, the deformation panel 6 will deform when subjected to the attraction force. Figure 6 As shown, when the perfusion deformation area 61 of the deformation panel 6 is subjected to the suction force generated in the silicone self-closing valve 3, the deformation of the perfusion deformation area 61 will be hindered by the arc plate frame 42, and the perfusion deformation area 61 will not be deformed. The annular baffle 41 is closer to the outlet end of the connector 4 than the suction deformation area 62, and the suction deformation area 62 will not be hindered by the annular baffle 41 when subjected to the suction force, and the suction deformation area 62 will be deformed, so that the suction channel 71 is in a connected state with the outside of the connector 4. At this time, the suction force can suck the extract into the suction channel 71 and finally enter the suction pipe.

[0023] During the filling operation, the filling pipe conveys the filling liquid into the silicone self-closing valve 3 through the silicone self-closing valve 3, and the liquid exerts a force on the deformable panel 6. Figure 6As shown, when the perfusion deformation area 61 is subjected to a force from the direction of the arc-shaped plate frame 42, it will deform, so that the perfusion liquid enters the perfusion channel 72, and exerts a force on the surface of the perfusion deformation area 61 in the joint 4 along the perfusion channel 72, so that the perfusion deformation area 61 is deformed and flows out to the outside of the joint 4. When the suction deformation area 62 is subjected to the action of the perfusion liquid, the suction deformation area 62 will be blocked by the annular baffle 41 and cannot be deformed, and then the perfusion liquid will not flow into the suction channel 71.

[0024] In order to avoid the problem of suction outflow caused by using the same connector 4 during the infusion and suction processes, the present invention designs the silicone part 5 accordingly.

[0025] The integrated suction and irrigation self-closing ophthalmic puncture knife provided by the present invention is described in detail with reference to specific embodiments below.

[0026] Embodiment 1: Combining with Fig. 9 As shown, both ends of the silicone portion 5 are fixedly connected to the inner wall of the joint 4, the cross-section of the silicone portion 5 is arranged in an arc shape, and the radius of both ends of the silicone portion 5 is greater than the radius of the middle area thereof. In this embodiment, when suction is performed, the suction pipe causes the suction deformation area 62 of the deformable panel 6 to deform, and then the suction liquid will enter the suction flow channel 71 through the deformed suction deformation area 62, and finally enter the suction pipe. When the liquid to be suctioned on the surface of the eyeball is processed, the suction pipe stops the suction operation, and the residual suction liquid in the joint 4 will be stored between the silicone portion 5 and the deformable panel 6 when the suction force is lost. Since the cross-section of the silicone portion 5 is arranged in an arc shape, and the silicone portion 5 has a certain slope, the suction liquid is not easy to flow out at this time. Before the perfusion operation is performed, the joint 4 can be pointed downward at the medical waste collection area, and the suction liquid can be discharged with physiological saline, thereby preventing reflux. At the same time, the physiological saline can be used to effectively clean the inner wall of the joint 4.

[0027] Embodiment 2: The silicone part 5 is a memory-resilient silicone product. The cross section of the silicone part 5 is arc-shaped and is arranged to expand toward the outside of the joint 4. One end of the silicone part 5 is fixedly connected to the inner wall of the joint 4, and the other end of the silicone part 5 is close to the axis of the joint 4 and bent inside the joint 4. Fig.10As shown, during the suction process, the suction force will generate an attractive force on the silicone part 5. Since the end of the silicone part 5 close to the axis of the connector 4 is bent inward, and the silicone part 5 is a memory-resilient silicone product, when subjected to the suction force, the silicone part 5 will bend toward the inside of the connector 4 and eventually change to a cone. At this time, the surface originally close to the outlet end of the connector 4 contacts the suction liquid as the inner wall; when the perfusion work is performed, the silicone part 5 will bend toward the outside of the connector 4 under the force of the perfusion liquid, and the surface originally far away from the outlet end of the connector 4 contacts the perfusion liquid as the inner wall. Since the surfaces in contact with the suction liquid and the perfusion liquid are different, the situation of suction flow out can be effectively avoided. Before perfusion, the connector 4 can be pointed downward to the medical waste collection area, and the end of the connector 4 can be rinsed with saline. This flushing is convenient for medical staff to adjust the perfusion pressure on the one hand, and on the other hand, the silicone part 5 can be deformed before perfusion to facilitate subsequent perfusion work.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated suction irrigation self-closing ophthalmic puncture knife, comprising a handle (1) and a knife body (2) mounted on the end of the handle (1), characterized in that: It also includes a silicone self-closing valve (3) sleeved on one end of the handle (1), the silicone self-closing valve (3) including an outer shell (31) and a valve body (32) installed inside the outer shell (31); the integrated suction and perfusion self-closing ophthalmic puncture knife also includes a joint (4) installed outside the outer shell (31), the feed end of the silicone self-closing valve (3) is connected to the suction pipeline and the perfusion pipeline, and a silicone part (5) is installed on the inner wall of the outlet end of the joint (4), and deformation panels (6) are installed inside the outer shell (31) and the joint (4), and an arc-shaped partition plate (7) is arranged between the two deformation panels (6), and the suction and perfusion operations can cause the deformation panel (6) to deform.

2. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 1, characterized in that: Both ends of the silicone part (5) are fixedly connected to the inner wall of the joint (4); the cross section of the silicone part (5) is arranged in an arc shape, and the radius of the two ends of the silicone part (5) is greater than the radius of the middle area thereof.

3. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 1, characterized in that: The silicone part (5) is a memory-resilient silicone product, the cross section of the silicone part (5) is arc-shaped and is arranged in an expanded shape toward the outside of the joint (4), one end of the silicone part (5) is fixedly connected to the inner wall of the joint (4), and the other end of the silicone part (5) is close to the axis of the joint (4) and is bent toward the inside of the joint (4).

4. The integrated suction irrigation self-closing ophthalmic puncture knife according to any one of claims 2 or 3, characterized in that: The arc-shaped partition plate (7) divides the area between the two deformable panels (6) into a suction flow channel (71) and an injection flow channel (72).

5. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 4, characterized in that: The deformable panel (6) comprises a perfusion deformable area (61) for perfusion and a suction deformable area (62) for suction, which cooperate with each other.

6. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 5, characterized in that: An annular baffle (41) fixedly connected to the inner wall of the joint (4) is provided on one side of the suction deformation region (62); relative to the suction deformation region (62), the annular baffle (41) is close to the outlet end of the joint (4), and the annular baffle (41) is in contact with the suction deformation region (62).

7. The integrated suction irrigation self-closing ophthalmic puncture knife according to claim 6, characterized in that: An arc-shaped plate frame (42) fixedly connected to the inner wall of the joint (4) is provided on one side of the perfusion deformation region (61); relative to the arc-shaped plate frame (42), the perfusion deformation region (61) is close to the outlet end of the joint (4).

8. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 1, characterized in that: The joint (4) and the housing (31) are connected via a plastic threaded sleeve (8).

9. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 1, characterized in that: The deformation panel (6) is made of a medical memory alloy material.

10. The integrated suction and irrigation self-closing ophthalmic puncture knife according to claim 5, characterized in that: The outer wall of the perfusion deformation area (61) is arranged in an arc shape.

Images