A postpartum cervical clamp hemostatic forceps
By designing a postpartum cervical clamp hemostasis forceps including locking racks, plug grooves and elastic sheets, the problems of small foliar leaves, large weight and inconvenient use in the prior art are solved, and a larger clamping range, lighter hemostasis forceps and higher comfort and convenience are achieved.
Patent Information
- Application Number
- CN201810800207.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-07-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2038-07-20
AI Technical Summary
The existing postpartum cervical clamp hemostasis clamps have smaller leaves, limited range of clamps, and the clamp handle is fixedly connected to the clamp leaves, which is relatively large, and long-term use will cause complications. During the clamping process, part of it is exposed to the perineum, affecting comfort and observation.
A postpartum cervical clamp hemostasis forceps including two clamp necks and corresponding clamp handles is designed. The clamp neck is equipped with a locking rack and a plug groove. The plug column is combined with the elastic sheet to remove the clamp handles through the elasticity of the elastic sheet, and the clamping area is increased through the clamp leaf designed by the network grid.
The range of clamps is expanded, the weight of hemostatic forceps is reduced, the load on the uterus during use is reduced, the occurrence of complications is avoided, and the comfort of the maternal part and the convenience of observation of medical staff is improved.
Smart Images
Figure CN108938038B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a medical device, in particular to a postpartum cervical clamping hemostatic forceps. Background Art
[0002] After vaginal delivery and cesarean section, there is a tendency of postpartum hemorrhage, that is, the descending branches of the uterine arteries on both sides of the cervix are clamped to reduce the blood supply to the uterus, so as to achieve the purpose of reducing postpartum hemorrhage. An attempt was made to manufacture a postpartum cervical clamping hemostatic forceps, which can effectively stop bleeding by clamping both sides of the cervix through the vagina, and can reduce the need for laparotomy for reoperation.
[0003] Uterine atony is the main cause of postpartum hemorrhage. The preliminary methods include using oxytocin and massaging the uterus. In cesarean section, B-Lynch uterine suture or vertical suture of the lower uterine segment can be used. After vaginal delivery and cesarean section, when postpartum hemorrhage occurs, the descending branches of the uterine arteries on both sides of the cervix can be clamped to reduce the blood supply to the uterus, so as to achieve the purpose of reducing postpartum hemorrhage; in addition, compared with the uterine body, the lower uterine segment has no inner circular and outer longitudinal muscle layer tissue, and some drugs cannot achieve the purpose of effective contraction of the lower uterine segment. Clinical attempts to use an oval forceps for clamping can achieve a preliminary effect.
[0004] However, this kind of clamping is a single-hole structure, the forceps blades are small, and thus the clamping range is also small, which affects the clamping effect; at the same time, the forceps blades and the forceps handle are fixedly connected, and the forceps handle is long. After long-term use and placement in the vagina, through clinical observation, because the hemostatic forceps are relatively heavy, it will generate additional stress on the clamping part, which will instead cause other complications over time. Moreover, during the clamping process, part of the existing oval forceps is exposed outside the perineum, and the parturient obviously feels uncomfortable, which also affects the timely observation of medical staff.
[0005] Therefore, the applicant proposes a postpartum cervical clamping hemostatic forceps, which improves the clamping blades and can remove the forceps handle after clamping, reducing the overall weight of the hemostatic forceps, so as to achieve the purposes of effective hemostasis, convenience, light weight and comfort for the parturient. Summary of the Invention
[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a postpartum cervical clamping hemostatic forceps.
[0007] To achieve the above object, the present invention provides a postpartum cervical clamping hemostatic forceps, including two forceps necks and two forceps handles correspondingly assembled with the two forceps necks. A locking rack is respectively arranged on each of the two forceps necks; a plugging groove is arranged on the forceps neck, and the plugging groove is plugged and assembled with a plugging column, and the plugging column is arranged on the forceps handle.
[0008] A rotating shaft connecting rod is also provided on the plug-in column, and the rotating shaft connecting rod is respectively assembled and fixed to one end of the first elastic sheet and the second elastic sheet, and the other end of the first elastic sheet and the second elastic sheet is an open end; the first elastic sheet and the second elastic sheet are distributed at a certain angle in the initial state and the spacing between their open ends is greater than the spacing between the two anti-recessing grooves, and the open ends of the first elastic sheet and the second elastic sheet are inserted into the anti-recessing grooves.
[0009] Preferably, the first elastic sheet and the second elastic sheet are made of elastic material.
[0010] Preferably, the anti-retraction groove is arranged on the side wall of the insertion groove and passes through the clamp neck.
[0011] Preferably, a spring is installed in the plug-in slot, one end of the spring contacts the closed end of the plug-in slot, and the other end is assembled and fixed with a piston block; the piston block applies a force to the plug-in column to push it out of the plug-in slot.
[0012] Preferably, the spring is connected and fixed to the closed end of the insertion slot.
[0013] Preferably, when the plug-in column is not inserted into the plug-in slot, the distance between the end face of the piston block close to the open end of the plug-in slot and the end face of the open end of the plug interface is less than the length of the plug-in column.
[0014] Preferably, the clamp neck is also provided with an end fixing groove, and the end fixing groove is assembled and fixed with the end plug-in strip;
[0015] The clamp neck is used to clamp the target object and has a clamp leaf on the clamp end, and a plurality of grids are arranged on the clamp leaf; the clamp leaf can be elliptical and adopt an inner grid design, which can clamp the longitudinal blood vessels just entering the uterus and the transverse blood vessels running in the cervix, and can achieve the effect of clamping the cervical tissue on both sides to stop bleeding.
[0016] Preferably, the clamp leaf area is 2cm*3cm.
[0017] Preferably, the plug-in column is provided with a stop protrusion assembled with the locking groove. When the plug-in column is inserted into the plug-in groove, the stop protrusion is assembled with the locking groove to prevent the plug-in column from being separated from the plug-in groove.
[0018] The locking groove is also assembled with one end of the pressing shaft, and the pressing shaft is assembled with an elastic band, which is made of a highly elastic material and fixed on the outer wall of the clamp neck;
[0019] The pressing shaft away from the locking rack is assembled and fixed with the pressing button, the pressing button is assembled and fixed with one end of the first pressing rod, the other end of the first pressing rod is assembled and fixed with one end of the pull wire, and the middle part of the first pressing rod is hinged with one end of the first support rod through the first pin shaft, and the other end of the first support rod is connected and fixed with the outer wall of the clamp neck;
[0020] The other end of the wire rope is fixedly connected to one end of the first connecting rod. The other end of the first connecting rod is hinged to one end of the second connecting rod through a fourth pin shaft. The middle part of the first connecting rod is hinged to one end of the third support rod through a third pin shaft. The third support rod is fixedly assembled to the outer wall of the clamp neck through a support connecting part.
[0021] A fifth pin shaft is fixed to the other end of the second connecting rod. The fifth pin shaft is assembled in a relief groove provided at one end of the second pressure rod. The other end of the second pressure rod is fixedly assembled to a pressing shaft close to the locking rack. The middle part of the second pressure rod is hinged to one end of the second support rod through a second pin shaft. The other end of the second support rod is fixedly connected to the clamp neck.
[0022] Preferably, the second pin shaft is close to the relief groove. This design can enable the end of the second pressure rod assembled to the pressing shaft to have a relatively large displacement amount, so as to ensure that the anti-retreat protrusion is pushed out of the locking groove.
[0023] The beneficial effects of the present invention are as follows:
[0024] 1. The clamp leaves of the present invention have a relatively large area and are provided with a grid, which can clamp the longitudinal blood vessels just entering the uterus and the transverse blood vessels walking in the cervix, facilitating clamping and achieving the effect of clamping and stopping bleeding of the bilateral cervical tissues.
[0025] 2. The clamp neck of the present invention has a sufficient length, facilitating operation in the vagina.
[0026] 3. The clamp handle of the present invention is detachable. In this way, during the clamping process, the load force on the uterus can be reduced, avoiding damage such as uterine prolapse caused by long-term clamping; there is no discomfort after long-term observation after clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a schematic structural diagram of a specific embodiment of a postpartum cervical clamp hemostat of the present invention.
[0028] Figure 2 is Figure 1 an enlarged view at F1 in
[0029] Figure 3 is Figure 1 an enlarged view at F2 in
[0030] Figure 4 is a schematic structural diagram of a specific embodiment of a postpartum cervical clamp hemostat of the present invention.
[0031] Figure 5 is a schematic structural diagram of an improved structure of the clamp neck of a specific embodiment of a postpartum cervical clamp hemostat of the present invention.
[0032] Figure 6 is a schematic structural diagram of an improved structure of the clamp neck of a specific embodiment of a postpartum cervical clamp hemostat of the present invention.
[0033] Figure 7 It is a schematic diagram of an improved structure of a postpartum cervical clamp hemostatic forceps according to a specific embodiment of the present invention. Specific embodiment
[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0035] See Figures 1-4 , the postpartum cervical clamp hemostatic forceps of this embodiment includes two forceps necks 110 and two forceps handles 120 correspondingly assembled with the two forceps necks. A locking rack 130 is respectively arranged on each of the two forceps necks 110. When in use, the two locking racks 130 are buckled with each other to fix the relative positions of the two forceps necks 110, so that the forceps necks 110 can stably clamp the target object; the locking rack 130 has the same structure as the locking racks on existing hemostatic forceps and medical pliers;
[0036] A plug-in slot 111 is arranged on the forceps neck 110, and the plug-in slot 111 is plugged and assembled with a plug-in column 121. The plug-in column 121 is arranged on the forceps handle 120. When it is necessary to remove the forceps handle 120, only the plug-in column 121 needs to be pulled out from the plug-in slot 111.
[0037] A rotating shaft connecting rod 230 is further arranged on the plug-in column 121. The rotating shaft connecting rod 230 is respectively assembled and fixed with one ends of a first elastic sheet 241 and a second elastic sheet 242. The other ends of the first elastic sheet 241 and the second elastic sheet 242 are open ends. The first elastic sheet 241 and the second elastic sheet 242 are made of elastic materials, such as elastic metal sheets, elastic plastic sheets, etc.; when the first elastic sheet 241 and the second elastic sheet 242 are in the initial state, they are distributed at a certain angle and the distance between their open ends is greater than the distance between two anti-withdrawal grooves 112. This enables the first elastic sheet 241 and the second elastic sheet 242 to be squeezed closer to each other when they are inserted into the plug-in slot, thereby storing elastic potential energy. When reaching the anti-withdrawal grooves 112, the first elastic sheet 241 and the second elastic sheet 242 are inserted into the anti-withdrawal grooves 112 by their own elastic forces, thus obtaining an anti-withdrawal effect.
[0038] When the plug-in column 121 is inserted into the plug-in slot 111, the other ends of the first elastic sheet 241 and the second elastic sheet 242 are inserted into the anti-withdrawal grooves 112, so as to prevent the plug-in column 121 from being pulled out of the plug-in slot 111. When it is necessary to remove the forceps handle 120, only the ends of the first elastic sheet 241 and the second elastic sheet 242 inserted into the anti-withdrawal grooves 112 need to be pressed into the plug-in slot, and then the plug-in column 121 can be pulled out.
[0039] The anti-withdrawal grooves 112 are arranged on the side wall of the plug-in slot 111 and penetrate through the forceps neck 110.
[0040] Furthermore, in order to further enhance the anti-retreat effect of the insertion post, a spring 210 can be installed in the insertion slot 111. One end of the spring 210 is in contact with and tightly abuts against the closed end of the insertion slot, and the other end is fixedly assembled with the piston block 220. Preferably, the spring 210 is fixedly connected to the closed end of the insertion slot;
[0041] In the initial state, the distance between the end face of the piston block 220 close to the open end of the insertion slot and the end face of the insertion opening is less than the length of the insertion post 121. This makes it such that when the insertion post is inserted into the insertion slot, the end face of the insertion post will push the piston block 220 to compress the spring 210 against the elastic force of the spring 210 until the open ends of the first elastic piece 241 and the second elastic piece 242 are assembled with the anti-retreat slot 112. At this time, the spring generates a thrust on the insertion post in the direction of pulling the insertion post out of the insertion slot, and the open ends of the first elastic piece 241 and the second elastic piece 242 are inserted into the anti-retreat slot 112, which makes the first elastic piece 241 and the second elastic piece 242 tightly clamped with the anti-retreat slot 112, preventing it from falling out of the anti-retreat slot 112.
[0042] During use, first, the hemostatic part is clamped tightly by the forceps neck 110, the relative angle between the two forceps necks 110 is fixed by the locking rack 130, then the first elastic piece 241 and the second elastic piece 242 are inserted into one end of the anti-retreat slot 112 and pressed into the insertion slot, and finally the forceps handle 120 is taken out. This can effectively reduce the weight of the entire hemostat, thus facilitating the observation by medical staff and making the user more comfortable.
[0043] See Figures 5-6 , an end fixing groove 117 is further provided on the forceps neck 110, and the end fixing groove 117 is inserted and assembled with the end insertion strip 116 or fixed by screw thread engagement;
[0044] On the clamping end 113 of the forceps neck 110 for clamping the target object, there is a forceps leaf 114. The area of the forceps leaf is about 2 cm * 3 cm, and several grid cells 115 are provided on the forceps leaf 114. This design can increase the clamping area of the clamping end, and prevent the clamping end 113 from completely clamping the target object through the grid cells 115, so that blood circulation can still occur at the grid cells 115 of the clamped end, preventing the clamped part from developing lesions or even necrosis due to poor blood circulation caused by the clamping of the clamping end.
[0045] For the egg-shaped forceps clamp used in the prior art, the width of its forceps leaf is relatively narrow and the clamping area is limited; when using the hemostat to clamp, the vaginal space is limited, increasing the difficulty of clinical operation; when the patient is transported and observed in the clamp, the forceps handle is too long and the parturient feels uncomfortable. However, through Figures 1-6 the improved hemostat in it can effectively solve the above problems.
[0046] See Figure 7, since the locking groove 112 is relatively small, and the space for pressing out the first elastic piece 241 and the second elastic piece 242 from the locking groove 112 near the locking rack is also very small, in actual operation, an additional tool is required to separate the pliers handle and the pliers neck, which is very inconvenient to use. Therefore, the applicant made the following improvements:
[0047] A retaining projection 122 assembled with the locking groove 112 is provided on the plug post 121. After the plug post is inserted into the plug slot, the retaining projection 122 is assembled with the locking groove 112 to prevent the plug post from disengaging from the plug slot;
[0048] The locking groove 112 is also assembled with one end of a pressing shaft 310. The pressing shaft 310 is assembled with an elastic band 320. The elastic band 320 is made of a highly elastic material (such as silicone, highly elastic polyethylene fiber) and is fixed on the outer wall of the pliers neck 110;
[0049] The pressing shaft 310 away from the locking rack 130 is fixedly assembled with a button 330. The button 330 is fixedly assembled with one end of a first pressing rod 410. The other end of the first pressing rod 410 is fixedly assembled with one end of a wire 450. And the middle part of the first pressing rod 410 is hinged to one end of a first support rod 420 through a first pin shaft 510. The other end of the first support rod 420 is fixedly connected to the outer wall of the pliers neck 110;
[0050] The other end of the wire 450 is fixedly connected to one end of a first connecting rod 460. The other end of the first connecting rod 460 is hinged to one end of a second connecting rod 480 through a fourth pin shaft 540. And the middle part of the first connecting rod 460 is hinged to one end of a third support rod 470 through a third pin shaft 530. The third support rod 470 is assembled and fixed to the outer wall of the pliers neck 110 through a support connecting part 471;
[0051] A fifth pin shaft 550 is fixed on the other end of the second connecting rod 480. The fifth pin shaft 550 is assembled with a relief groove 441 provided at one end of a second pressing rod 440. The other end of the second pressing rod 440 is fixedly assembled with the pressing shaft 310 near the locking rack 130. And the middle part of the second pressing rod 440 is hinged to one end of a second support rod 430 through a second pin shaft 520. The other end of the second support rod 430 is fixedly connected to the pliers neck.
[0052] During use, press the button 330 into the insertion slot. At this time, the pressing shaft 310 assembled with the button moves into the insertion slot, thereby pushing out the anti-retreat protrusion 122 corresponding to it from the locking slot 112. The button 330 presses one end of the first lever 410 towards the insertion slot 111. The other end of the first lever 410 rotates through the first pin shaft, thereby pulling the first connecting rod 460 to the left through the wire 450. The first connecting rod 460 rotates through the third pin shaft 530, thereby pushing the second connecting rod 480 to the right. The second connecting rod 480 pushes one end of the second lever 440 to the right through the fifth pin shaft 550. The second lever rotates around the second pin shaft, so that its other end applies a thrust towards the insertion slot to the other pressing shaft 310, causing the anti-retreat protrusion 122 inserted into the other locking slot to be pushed out, and then the pliers handle can be taken out. This design can realize the removal of the pliers handle through a single button, which is very convenient to use.
[0053] The said relief groove is used to enable the fifth pin shaft to move in its vertical direction to offset the displacement in the vertical direction transmitted by the second connecting rod.
[0054] Details not described in the present invention are all well-known technologies to those skilled in the art.
[0055] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.
Claims
1. A postpartum cervical clamp hemostatic forceps, comprising two clamp necks and two clamp handles corresponding to the two clamp necks, and a locking rack is respectively provided on the two clamp necks; Its characteristics are: The pliers neck is provided with a plug-in slot, the plug-in slot is plugged and assembled with a plug-in post, and the plug-in post is provided on the pliers handle; The plug-in column is also provided with a shaft connecting rod, which is respectively assembled and fixed with one end of the first elastic sheet and the second elastic sheet, and the other end of the first elastic sheet and the second elastic sheet is an open end; the first elastic sheet and the second elastic sheet are distributed at a certain angle in the initial state, and the distance between their open ends is greater than the distance between the two anti-recessing grooves, and the open ends of the first elastic sheet and the second elastic sheet are inserted into the anti-recessing grooves; The backstop groove is arranged on the side wall of the plug-in groove and passes through the clamp neck; A spring is installed in the plug-in slot, one end of the spring contacts the closed end of the plug-in slot, and the other end is assembled and fixed with the piston block; the piston block applies a force to push the plug-in column out of the plug-in slot; The spring is connected and fixed to the closed end of the plug slot; When the plug-in column is not inserted into the plug-in slot, the distance between the end face of the piston block close to the opening end of the plug-in slot and the end face of the opening end of the plug-in interface is less than the length of the plug-in column; The clamp neck is also provided with an end fixing groove, and the end fixing groove is assembled and fixed with the end plug-in strip; The plug-in column is provided with a stop-retraction protrusion assembled with the stop-retraction groove. When the plug-in column is inserted into the plug-in groove, the stop-retraction protrusion is assembled with the stop-retraction groove to prevent the plug-in column from being separated from the plug-in groove. The anti-retraction groove is also assembled with one end of the pressing shaft, and the pressing shaft is assembled with an elastic band, which is made of a highly elastic material and fixed on the outer wall of the clamp neck; The pressing shaft away from the locking rack is assembled and fixed with the pressing button, the pressing button is assembled and fixed with one end of the first pressing rod, the other end of the first pressing rod is assembled and fixed with one end of the pull wire, and the middle part of the first pressing rod is hinged with one end of the first support rod through the first pin shaft, and the other end of the first support rod is connected and fixed with the outer wall of the clamp neck; The other end of the pull wire is connected and fixed to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod through a fourth pin shaft, and the middle part of the first connecting rod is hinged to one end of the third supporting rod through a third pin shaft, and the third supporting rod is assembled and fixed to the outer wall of the clamp neck through a supporting connecting part; A fifth pin is fixed on the other end of the second connecting rod, and the fifth pin is assembled with a clearance groove arranged at one end of the second pressure rod. The other end of the second pressure rod is assembled and fixed with a pressing shaft close to the locking rack, and the middle part of the second pressure rod is hinged with one end of the second support rod through the second pin, and the other end of the second support rod is connected and fixed with the clamp neck; The second pin shaft is close to the clearance groove.
2. The postpartum cervical clamp hemostatic forceps as claimed in claim 1, Its characteristics are: The first elastic sheet and the second elastic sheet are made of elastic material.
3. The postpartum cervical clamp hemostatic forceps as claimed in claim 1, Its characteristics are: The clamp neck is used for clamping a target object, and a clamp leaf is arranged on the clamp leaf. The clamp leaf is provided with a plurality of network grids.
4. The postpartum cervical clamp hemostatic forceps as claimed in claim 3, Its characteristics are: The area of the clamp leaf is 2cm*3cm.
Citation Information
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