CN112244910B - Distraction instrument for laparoscopic surgery - Google Patents
Distraction instrument for laparoscopic surgery Download PDFInfo
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- CN112244910B CN112244910B CN202011225737.5A CN202011225737A CN112244910B CN 112244910 B CN112244910 B CN 112244910B CN 202011225737 A CN202011225737 A CN 202011225737A CN 112244910 B CN112244910 B CN 112244910B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
Abstract
The invention relates to the technical field of medical instruments, and particularly discloses a distraction instrument for laparoscopic surgery; the handle comprises a handheld part, wherein a rotating groove is formed in the inner side of the handheld part, a pin shaft is arranged in the rotating groove, a holding rod is rotatably connected onto the pin shaft, a first spring is connected between the holding rod and the inner wall of the rotating groove, a pawl is arranged at the upper end of the holding rod, an arc-shaped clamping groove is formed in the upper end of the pawl, and an end sleeve is connected to the upper end of the handheld part; the right end of the end sleeve is connected with a sleeve rod; according to the distraction instrument for laparoscopic surgery disclosed by the invention, the first arc-shaped stay and the second arc-shaped stay are vertically arranged in space, so that tissues in the abdominal cavity can be effectively distracted when the first arc-shaped stay and the second arc-shaped stay are simultaneously distracted, and the problem of poor distraction effect of the existing instrument is limited and solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, and particularly discloses a distraction instrument for laparoscopic surgery.
Background
The laparoscopic surgery is a newly developed minimally invasive method, is a more advanced surgical treatment method at present, and can treat various diseases. As an advanced minimally invasive technique, the laparoscopic surgery has small trauma and less bleeding, and can be quickly recovered after the operation of a patient, so the laparoscopic surgery is widely applied to the clinic at present. When carrying out laparoscopic surgery, earlier set up miniature wound at the patient belly, the peritoneoscope stretches into the patient abdominal cavity through miniature wound, the camera lens of peritoneoscope can provide more open, more clear field of vision for the doctor, however, the condition of sheltering from the camera lens of peritoneoscope and restriction operation space easily appears in the tissue in the patient abdomen, generally utilize supporting structure such as apparatus and sliver to strut with tissue and the internal organs of patient abdominal cavity, thereby guarantee looking field of vision and operation space of doctor, make the operation go on smoothly. However, when supporting structures such as instruments and gauze are used for supporting tissues and organs, the supporting structures occupy miniature wounds of patients, block surgical instruments, and are not beneficial to operation of the surgical instruments in the operation process of doctors, so that the number of the miniature wounds of the patients has to be increased by the doctors, and the abdominal wound surfaces of the patients and the operation pain of the patients are increased.
The invention with the patent number of CN110301947A discloses a tissue spreader under a laparoscope, which comprises a supporting mechanism and a spreading mechanism, wherein the supporting mechanism comprises a supporting frame, a first supporting plate and a second supporting plate, and the first supporting plate and the second supporting plate are respectively arranged at two opposite sides of the supporting frame; the supporting mechanism comprises a clamping part and a driving part, the clamping part is detachably connected with the supporting frame so as to send or take the supporting mechanism to or away from a supporting position, and the driving part can be matched with the supporting frame so as to enable the first supporting plate and the second supporting plate to move away from or towards each other. After the tissue spreader under the laparoscope is spread in the laparoscopic surgery, two supporting plates of the tissue spreader under the laparoscope can only be spread outwards on one plane, and the two supporting plates are not spread in a space vertical to the plane, so that the tissue spreading effect is poor, and the lens of the laparoscope can be continuously shielded.
Also, for example, the invention with the patent number CN109662742A discloses a distraction instrument for laparoscopic surgery, which comprises a surgical rod, a first spring and a second spring, wherein a through cavity is formed in the surgical rod, a sliding plate is connected in the through cavity in a sliding manner, a fixing plate is fixedly connected in the through cavity, and the sliding plate is connected with the fixing plate through the first spring; one side that the fixed plate was kept away from to the slide is installed a plurality of groups that strut, and every struts the group and includes the mount pad of two relative settings, and it has the vaulting pole to articulate on every mount pad, and two vaulting poles pass through second spring coupling, and the slide is close to one side fixedly connected with connecting rod of fixed plate, and the connecting rod runs through the fixed plate, and the one end fixedly connected with stay cord of slide is kept away from to the connecting rod. The distraction instrument for laparoscopic surgery effectively distracts the abdominal cavity through the four support rods at the front end, but the top ends of the four support rods are abutted against the abdominal part when the abdominal cavity is distracted, so that human body discomfort is caused; in addition, when the instrument is used, medical staff need to hold the holding rod firmly all the time, once the four support rods are loosened, the four support rods can be contracted, and the instrument is inconvenient to use in laparoscopic surgery. Therefore, it is a technical problem to be solved to design a distraction instrument for laparoscopic surgery which can effectively solve the above technical problems at the same time, in order to overcome the disadvantages of the existing distraction devices for laparoscopic surgery.
Disclosure of Invention
The invention aims to solve the technical problem of designing a distraction instrument for laparoscopic surgery, which can effectively solve the technical problem at the same time aiming at the defects of the existing distraction device for laparoscopic surgery.
The invention is realized by the following technical scheme:
the utility model provides a laparoscopic surgery is with strutting apparatus, includes handheld portion, the rotation groove has been seted up to the inboard of handheld portion, be provided with the round pin axle in the rotation groove, it is connected with holding rod to rotate on the round pin axle, be connected with first spring between the inner wall in holding rod and rotation groove, the upper end of holding rod is provided with the pawl, the arc draw-in groove has been seted up to the upper end of pawl, the upper end of handheld portion is connected with the tip sleeve, is located the tip sleeve lower surface of pawl top is seted up jaggedly, the upper end of pawl passes the breach and stretches into and sets up in the telescopic inner chamber of tip, is located the left tip sleeve of breach is inside to be provided with the slip and rotates the cover, be provided with the first rotation pole that runs through the slip and rotate the cover in the tip sleeve, be located the first rotation pole between tip sleeve left side wall and the slip rotation cover is gone up the cover and is equipped with the second spring, the both ends of second spring respectively with tip sleeve, The sliding rotating sleeve is connected, the end part of the first rotating rod, extending out of the left end of the end sleeve, is connected with a screwing cap, an annular bulge is arranged on the first rotating rod on the right side of the sliding rotating sleeve, the annular bulge is matched with the pawl, and the right end of the first rotating rod, extending out of the end sleeve, is connected with a rotating plug;
the right end of the end sleeve is connected with a loop bar, a cavity is arranged in the loop bar, an end cap is arranged at the right end of the loop bar, a bearing is arranged on the inner side surface of the end cap, a fixed rotating sleeve is arranged at the left end of the inner cavity of the loop bar, a second rotating rod is rotatably connected between the bearing and the fixed rotating sleeve, the left end of the second rotating rod is connected with a rotating plug sleeve matched with a rotating plug, a first mirror symmetry thread group and a second mirror symmetry thread group are arranged on the outer circular surface of the second rotating rod between the end cap and the fixed rotating sleeve, the first mirror symmetry thread group and the second mirror symmetry thread group are both composed of two symmetrically arranged external threads, and two thread sleeves matched with the corresponding external threads are sleeved on the second rotating rods positioned at the first mirror symmetry thread group and the second mirror symmetry thread group, a first strip-shaped opening group and a second strip-shaped opening are respectively arranged on the loop bars positioned at the first mirror symmetry thread group and the second mirror symmetry thread group, the first strip-shaped opening group consists of strip-shaped openings which are arranged in a vertical mirror symmetry way, the second strip-shaped opening consists of strip-shaped openings which are arranged in a horizontal mirror symmetry way, a first arc-shaped supporting strip which is arranged in a vertical symmetry way is arranged at the periphery of the loop bar positioned at the first strip-shaped opening group, two rotating pieces are arranged in the middle of the inner side surface of the first arc-shaped supporting strip, the two rotating pieces are rotatably connected with rotating strips, the two rotating strips penetrate through the first strip-shaped opening group to be rotatably connected with the two thread sleeves on the first mirror symmetry thread group, a second arc-shaped supporting strip which is arranged in a vertical symmetry way is arranged at the periphery of the loop bar positioned at the second strip-shaped opening group, and two second arc-shaped supporting strips are also arranged in the middle of the inner side surface of the second arc-shaped supporting strip, two it is connected with the rotation strip all to rotate on the rotation piece, and two strips that rotate pass second bar mouth group and rotate with two thread bush on the second mirror symmetry thread group and be connected.
As a further arrangement of the scheme, 3-4 arc-shaped finger holding grooves are formed in the outer side face of the holding rod.
As a further arrangement of the scheme, an anti-skid thread surface is arranged on the outer circular surface of the screwing cap.
As a further arrangement of the above scheme, the cross section of the rotary plug connector is a regular polygon, the rotary plug sleeve is a cylinder, and a regular polygon groove matched with the cross section of the rotary plug connector is formed in the outer side surface of the cylinder.
As a further arrangement of the above scheme, the cross section of the rotary plug is a gear surface, the rotary plug bush is a cylinder, and the outer side surface of the cylinder is provided with a gear-shaped groove matched with the cross section of the rotary plug.
As a further arrangement of the above scheme, the right end face of the first arc-shaped stay is connected with a first extension strip extending rightwards, and the left end face of the second arc-shaped stay is connected with a second extension strip extending leftwards.
As a further setting of the above scheme, the outer surfaces of the first arc-shaped stay, the second arc-shaped stay, the first arc-shaped stay and the second extension strip are all provided with a layer of silica gel soft layer.
Compared with the prior art, the invention has the following beneficial effects:
1) when the spreading instrument for laparoscopic surgery disclosed by the invention is used, a medical worker holds the holding rod to the holding part, the pawl at the upper end is clamped with the annular bulge on the first rotating rod, the whole first rotating rod moves to the loop bar along the end sleeve, and the rotary plug-in connector is inserted into the rotary plug-in sleeve, and at the moment, the screwing cap is rotated by fingers, so that the second rotating rod rotates synchronously along with the first rotating rod, then two thread sleeves on the first mirror symmetry thread group and the second mirror symmetry thread group on the surface of the rotating rod move in opposite directions simultaneously, and the two first arc-shaped supporting strips and the two second arc-shaped supporting strips are expanded, and because first arc stay and second arc stay are perpendicular setting in space, consequently can effectively strut the tissue of abdominal cavity inside when both strut simultaneously, it has limitedly solved the current apparatus and has strutted the not good problem of effect.
2) According to the invention, after the first arc-shaped stay and the second arc-shaped stay prop open abdominal tissues, the holding rod is loosened, and the second rotating rod and the first rotating rod are not in synchronous action, so that the problem that the arc-shaped stay is stored or continues to prop open due to the fact that the second rotating rod rotates because the cap is accidentally touched in the subsequent operation process is effectively prevented, and misoperation in the operation is effectively avoided; in addition, the first arc-shaped stay and the second arc-shaped stay are connected with the extension strip extending towards each other, so that when the abdominal cavity tissue is further propped open, the interior of the abdominal cavity can not be tightly connected together, the subsequent operation is more convenient after the abdominal cavity tissue is propped open, and the practicability is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the inner plan structure of the hand-held portion and end sleeve of the present invention;
FIG. 3 is a schematic perspective view of a hand-held portion, an end sleeve, etc. according to the present invention;
FIG. 4 is a schematic plan view of the interior of the loop bar of the present invention;
FIG. 5 is a perspective view of the stem and end cap of the present invention;
FIG. 6 is a schematic perspective view of a second rotating shaft according to the present invention;
FIG. 7 is a schematic perspective view of a first arc-shaped stay, a threaded sleeve and the like when the cable is stored in the box;
fig. 8 is a schematic perspective view of the first arc-shaped stay and the threaded sleeve when the support member is opened.
Wherein: 1-a hand-held part, 101-a rotation groove, 102-a pin, 103-a grip lever, 104-a first spring, 105-a pawl, 106-an arc-shaped finger grip groove, 2-an end sleeve, 201-a notch, 202-a sliding rotation sleeve, 203-a first rotation lever, 204-a second spring, 205-a twist cap, 2051-an anti-slip thread surface, 206-an annular protrusion, 207-a rotation plug, 3-a loop bar, 301-an end cap, 302-a bearing, 303-a fixed rotation sleeve, 304-a second rotation lever, 305-a first mirror-symmetrical thread group, 306-a second mirror-symmetrical thread group, 307-a thread sleeve, 308-a first strip-shaped port group, 309-a second strip-shaped port group, 310-a first arc-shaped stay, 311-a rotation piece, 312-a rotation strip, 313-second arc stay, 314-first elongated strip, 315-second elongated strip, 320-rotary bayonet.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience of describing different components, and are not understood to indicate or imply a sequential relationship, relative importance or to implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.
The expanding instrument for laparoscopic surgery disclosed in the present invention will be further described with reference to fig. 1 to 8.
Example 1
This embodiment 1 discloses a laparoscopic surgery is with propping up open apparatus, refer to fig. 1, fig. 2 and fig. 3, and its major structure includes handheld portion 1, and the inboard of carrying handheld portion 1 has seted up rotates groove 101, is provided with round pin axle 102 in rotating groove 101, is connected with a holding rod 103 through round pin axle 102 rotation to 3 ~ 4 arc fingers are seted up at the lateral surface of holding rod 103 and are held groove 106. And a first spring 104 is connected between the grab bar 103 and the inner wall of the rotation groove 101, and the return action can be realized by the first spring 104. A pawl 105 is arranged at the upper end of the holding rod 103, and an arc-shaped clamping groove (not labeled) is formed at the upper end of the pawl 105 and can be matched with the outer circular surface of the first rotating rod 203 at the back.
The upper end of the handheld part 1 is connected with an end sleeve 2, the lower surface of the end sleeve 2 above the pawl 105 is provided with a notch 201, the upper end of the pawl 105 penetrates through the notch 201 and extends into the inner cavity of the end sleeve 2 to be arranged, a sliding rotating sleeve 202 is arranged inside the end sleeve 2 on the left side of the notch 201, the sliding rotating sleeve 202 can move left and right along the inner cavity of the end sleeve 2, a first rotating rod 203 penetrating through the sliding rotating sleeve 202 is arranged in the end sleeve 2, and the first rotating rod 203 can rotate in the sliding rotating sleeve 202. The first rotating rod 203 between the left side wall of the end sleeve 2 and the sliding rotating sleeve 202 is sleeved with a second spring 204, two ends of the second spring 204 are respectively connected with the end sleeve 2 and the sliding rotating sleeve 202, and the second spring 204 also plays a role in resetting. The end of the first rotation rod 203 extending out of the left end of the end sleeve 2 is connected with a screw cap 205, and an anti-skid surface 2051 is provided on the outer circular surface of the screw cap 205. The first rotating rod 203 on the right side of the sliding rotating sleeve 202 is provided with an annular protrusion 206, and the annular protrusion 206 is arranged in cooperation with the pawl 105, that is, the first rotating rod 203 can be pushed to the right side by the grasping of the holding rod 103 and the action of the pawl 105 and the annular protrusion 206. Meanwhile, a rotary plug 207 is connected to the right end of the first rotary rod 203 extending out of the end sleeve 2. Specifically, the cross section of the rotary plug 207 is a regular polygon.
Referring to fig. 4, 5 and 6, a sleeve rod 3 is connected to the right end of the end sleeve 2, a cavity 301 is formed inside the sleeve rod 3, an end cap 301 is arranged at the right end of the sleeve rod 3, a bearing 302 is arranged on the inner side surface of the end cap 301, a fixed rotating sleeve 303 is arranged at the left end of the inner cavity of the sleeve rod 3, and a second rotating rod 304 is rotatably connected between the bearing 302 and the fixed rotating sleeve 303. A rotary joint sleeve 320 that mates with the rotary joint 207 is attached to the left end of the second rotary lever 304. Specifically, the rotating plug 320 is a cylinder, and the outer side surface of the cylinder is provided with a regular polygon groove with a matching cross section of the rotating plug 207, when the first rotating rod 203 is pushed to the right, the rotating plug 207 can be inserted into the rotating plug 320, and then when the first rotating rod 203 is screwed, the second rotating rod 304 also rotates.
A first mirror symmetry thread group 305 and a second mirror symmetry thread group 306 are arranged on the outer circular surface of the second rotating rod 304 between the end cap 301 and the fixed rotating sleeve 303, and the first mirror symmetry thread group 305 and the second mirror symmetry thread group 306 are both composed of two symmetrically arranged external threads. Referring to fig. 7 and 8, two thread sleeves 307 matched with corresponding external threads are sleeved on the second rotating rod 304 at the positions of the first mirror symmetry thread group 305 and the second mirror symmetry thread group 306, a first strip-shaped opening group 308 and a second strip-shaped opening 308 are respectively arranged on the sleeve rod 3 at the positions of the first mirror symmetry thread group 305 and the second mirror symmetry thread group 306, the first strip-shaped opening group 308 is composed of strip-shaped openings which are arranged in an up-down mirror symmetry mode, and the second strip-shaped opening 309 is composed of strip-shaped openings in a left-right mirror symmetry mode. The periphery of the sleeve rod 3 at the first strip-shaped port group 308 is provided with two symmetrical upper and lower first arc-shaped supporting strips 310, the middle of the inner side surface of each first arc-shaped supporting strip 310 is provided with two rotating pieces 311, the two rotating pieces 311 are all rotatably connected with rotating pieces 312, the two rotating pieces 312 penetrate through the first strip-shaped port group 308 to be rotatably connected with two threaded sleeves 307 on the first mirror-image symmetrical threaded group 305, the periphery of the sleeve rod 3 at the second strip-shaped port group 309 is provided with two symmetrical upper and lower second arc-shaped supporting strips 313, the middle of the inner side surface of each second arc-shaped supporting strip 313 is also provided with two rotating pieces 311, the two rotating pieces 311 are all rotatably connected with the rotating pieces 312, and the two rotating pieces 312 penetrate through the second strip-shaped port group 309 to be rotatably connected with two threaded sleeves 307 on the second mirror-image symmetrical threaded group 306. When the second rotating rod 304 rotates, the two threaded sleeves 7 can move close to each other through the action between the external threads on the second rotating rod and the threaded sleeves 7, and then the two first arc-shaped stays 310 and the two second arc-shaped stays 313 can be splayed outwards through the action of the rotating strip 312, so that the tissues in the abdominal cavity can be splayed out from the transverse direction and the longitudinal direction simultaneously.
Example 2
The upper end of the handheld part 1 is connected with an end sleeve 2, the lower surface of the end sleeve 2 above the pawl 105 is provided with a notch 201, the upper end of the pawl 105 penetrates through the notch 201 and extends into the inner cavity of the end sleeve 2 to be arranged, a sliding rotating sleeve 202 is arranged inside the end sleeve 2 on the left side of the notch 201, the sliding rotating sleeve 202 can move left and right along the inner cavity of the end sleeve 2, a first rotating rod 203 penetrating through the sliding rotating sleeve 202 is arranged in the end sleeve 2, and the first rotating rod 203 can rotate in the sliding rotating sleeve 202. The first rotating rod 203 between the left side wall of the end sleeve 2 and the sliding rotating sleeve 202 is sleeved with a second spring 204, two ends of the second spring 204 are respectively connected with the end sleeve 2 and the sliding rotating sleeve 202, and the second spring 204 also plays a role in resetting. The end of the first rotation rod 203 extending out of the left end of the end sleeve 2 is connected with a screw cap 205, and an anti-skid surface 2051 is provided on the outer circular surface of the screw cap 205. The first rotating rod 203 on the right side of the sliding rotating sleeve 202 is provided with an annular protrusion 206, and the annular protrusion 206 is arranged in cooperation with the pawl 105, namely, the first rotating rod 203 can be pushed to the right side by the action of the pawl 105 and the annular protrusion 206 after the hand-holding rod 103 is gripped. Meanwhile, a rotary plug 207 is connected to the right end of the first rotary rod 203 extending out of the end sleeve 2. Specifically, the section of the rotary plug 207 is a gear surface.
Referring to fig. 4, 5 and 6, a sleeve rod 3 is connected to the right end of the end sleeve 2, a cavity 301 is formed inside the sleeve rod 3, an end cap 301 is arranged at the right end of the sleeve rod 3, a bearing 302 is arranged on the inner side surface of the end cap 301, a fixed rotating sleeve 303 is arranged at the left end of the inner cavity of the sleeve rod 3, and a second rotating rod 304 is rotatably connected between the bearing 302 and the fixed rotating sleeve 303. A rotary joint sleeve 320 that mates with the rotary joint 207 is attached to the left end of the second rotary lever 304. Specifically, the rotary plug bush 320 is a cylinder, a gear-shaped groove matched with the cross section of the rotary plug 207 is formed in the outer side surface of the cylinder, and the gear-shaped groove enables the rotary plug bush 320 to be quickly inserted into the rotary plug bush 320 no matter how the rotary angle is. The rotary plug 207 of the first rotary lever 203 can be inserted into the rotary plug 320 when it is pushed to the right, and then the second rotary lever 304 thereof is also rotated when the first rotary lever 203 is screwed.
A first mirror symmetry thread group 305 and a second mirror symmetry thread group 306 are arranged on the outer circular surface of the second rotating rod 304 between the end cap 301 and the fixed rotating sleeve 303, and the first mirror symmetry thread group 305 and the second mirror symmetry thread group 306 are both composed of two symmetrically arranged external threads. Referring to fig. 7 and 8, all the cover is equipped with two and correspond external screw thread matched with thread bush 307 on the second dwang 304 that is located first mirror symmetry thread group 305 and second mirror symmetry thread group 306 department, be equipped with first bar mouth group 308 and second bar mouth 308 on the loop bar 3 that is located first mirror symmetry thread group 305 and second mirror symmetry thread group 306 department respectively, its first bar mouth group 308 comprises the bar mouth that upper and lower mirror symmetry seted up, its second bar mouth 309 comprises the bar mouth of bilateral mirror symmetry. The periphery of the sleeve rod 3 at the first strip-shaped port group 308 is provided with two symmetrical upper and lower first arc-shaped supporting strips 310, the middle of the inner side surface of each first arc-shaped supporting strip 310 is provided with two rotating pieces 311, the two rotating pieces 311 are all rotatably connected with rotating pieces 312, the two rotating pieces 312 penetrate through the first strip-shaped port group 308 to be rotatably connected with two threaded sleeves 307 on the first mirror-image symmetrical threaded group 305, the periphery of the sleeve rod 3 at the second strip-shaped port group 309 is provided with two symmetrical upper and lower second arc-shaped supporting strips 313, the middle of the inner side surface of each second arc-shaped supporting strip 313 is also provided with two rotating pieces 311, the two rotating pieces 311 are all rotatably connected with the rotating pieces 312, and the two rotating pieces 312 penetrate through the second strip-shaped port group 309 to be rotatably connected with two threaded sleeves 307 on the second mirror-image symmetrical threaded group 306. When the second rotating rod 304 rotates, the two threaded sleeves 7 can move close to each other through the action between the external threads on the second rotating rod and the threaded sleeves 7, and then the two first arc-shaped stays 310 and the two second arc-shaped stays 313 can be splayed outwards through the action of the rotating strip 312, so that the tissues in the abdominal cavity can be simultaneously splayed from the transverse direction and the longitudinal direction
Referring to fig. 1, in embodiment 2, a first elongated strip 314 extending rightward is connected to a right end surface of the first arc-shaped stay 310, and a second elongated strip 315 extending leftward is connected to a left end surface of the second arc-shaped stay 313. Meanwhile, a layer of silica gel soft layer (not shown in the figure) is arranged on the outer surfaces of the first arc-shaped stay 310, the second arc-shaped stay 313, the first arc-shaped stay 310 and the second extension strip 315, and the arrangement of the silica gel soft layer can prevent the inner part of the abdominal cavity from being scratched.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A distraction instrument for laparoscopic surgery is characterized by comprising a handheld part, wherein a rotating groove is formed in the inner side of the handheld part, a pin shaft is arranged in the rotating groove, a holding rod is rotatably connected to the pin shaft, a first spring is connected between the holding rod and the inner wall of the rotating groove, a pawl is arranged at the upper end of the holding rod, an arc-shaped clamping groove is formed in the upper end of the pawl, an end sleeve is connected to the upper end of the handheld part, a notch is formed in the lower surface of the end sleeve above the pawl, the upper end of the pawl penetrates through the notch and extends into the inner cavity of the end sleeve, a sliding rotating sleeve is arranged inside the end sleeve on the left side of the notch, a first rotating rod penetrating through the sliding rotating sleeve is arranged in the end sleeve, and a second spring is sleeved on the first rotating rod between the left side wall of the end sleeve and the sliding rotating sleeve, the two ends of the second spring are respectively connected with the end sleeve and the sliding rotating sleeve, the end part of the first rotating rod, which extends out of the left end of the end sleeve, is connected with a screwing cap, the first rotating rod, which is positioned on the right side of the sliding rotating sleeve, is provided with an annular bulge, the annular bulge is matched with a pawl, and the right end of the first rotating rod, which extends out of the end sleeve, is connected with a rotating plug-in connector;
the right end of the end sleeve is connected with a loop bar, a cavity is arranged in the loop bar, an end cap is arranged at the right end of the loop bar, a bearing is arranged on the inner side surface of the end cap, a fixed rotating sleeve is arranged at the left end of the inner cavity of the loop bar, a second rotating rod is rotatably connected between the bearing and the fixed rotating sleeve, the left end of the second rotating rod is connected with a rotating plug sleeve matched with a rotating plug, a first mirror symmetry thread group and a second mirror symmetry thread group are arranged on the outer circular surface of the second rotating rod between the end cap and the fixed rotating sleeve, the first mirror symmetry thread group and the second mirror symmetry thread group are both composed of two symmetrically arranged external threads, and two thread sleeves matched with the corresponding external threads are sleeved on the second rotating rods positioned at the first mirror symmetry thread group and the second mirror symmetry thread group, a first strip-shaped opening group and a second strip-shaped opening group are respectively arranged on the loop bars positioned at the first mirror symmetry thread group and the second mirror symmetry thread group, the first strip-shaped opening group consists of strip-shaped openings which are arranged in an up-down mirror symmetry manner, the second strip-shaped opening group consists of strip-shaped openings which are arranged in a left-right mirror symmetry manner, an up-down symmetrical first arc-shaped supporting strip is arranged at the periphery of the loop bar positioned at the first strip-shaped opening group, two first rotating pieces are arranged in the middle of the inner side surface of the first arc-shaped supporting strip, a first rotating strip is rotatably connected on each of the two first rotating pieces, the two first rotating strips penetrate through the first strip-shaped opening group to be rotatably connected with the two thread sleeves on the first mirror symmetry thread group, an up-down symmetrical second arc-shaped supporting strip is arranged at the periphery of the loop bar positioned at the second strip-shaped opening group, and two second rotating pieces are arranged in the middle of the inner side surface of the second arc-shaped supporting strip, two the second rotates and all rotates to be connected with the second on the piece and rotates the strip, two the second rotates the strip and passes second bar mouth group and rotate with two thread bush on the second mirror symmetry thread group and be connected.
2. A laparoscopic distraction instrument according to claim 1, wherein: 3 ~ 4 arc fingers are seted up and are held the groove to the lateral surface of holding the pole.
3. A laparoscopic distraction instrument according to claim 1, wherein: and an anti-skid thread surface is arranged on the outer circular surface of the screwing cap.
4. A laparoscopic distraction instrument according to claim 1, wherein: the cross section of the rotary plug is in a regular polygon shape, the rotary plug sleeve is a cylinder, and a regular polygon groove matched with the cross section of the rotary plug is formed in the outer side surface of the cylinder.
5. A laparoscopic distraction instrument according to claim 1, wherein: the section of the rotary plug-in connector is a gear surface, the rotary plug-in sleeve is a cylinder, and a gear-shaped groove matched with the section of the rotary plug-in connector is formed in the outer side surface of the cylinder.
6. A laparoscopic distraction instrument according to claim 1, wherein: the right end face of the first arc-shaped supporting strip is connected with a first extending strip extending rightwards, and the left end face of the second arc-shaped supporting strip is connected with a second extending strip extending leftwards.
7. A laparoscopic distraction instrument according to claim 6, wherein: the outer surfaces of the first arc-shaped supporting strip, the second arc-shaped supporting strip, the first extending strip and the second extending strip are provided with a silica gel soft layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225737.5A CN112244910B (en) | 2020-11-05 | 2020-11-05 | Distraction instrument for laparoscopic surgery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225737.5A CN112244910B (en) | 2020-11-05 | 2020-11-05 | Distraction instrument for laparoscopic surgery |
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| CN112244910A CN112244910A (en) | 2021-01-22 |
| CN112244910B true CN112244910B (en) | 2022-05-06 |
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| CN114073554B (en) * | 2022-01-19 | 2022-04-15 | 江苏泰科博曼医疗器械有限公司 | Minimally invasive surgery suture end locking device and method and operation gun body |
| CN116687478B (en) * | 2023-08-07 | 2023-09-29 | 江西省人民医院 | Opening device for abdominal cavity minimally invasive surgery |
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| US5540711A (en) * | 1992-06-02 | 1996-07-30 | General Surgical Innovations, Inc. | Apparatus and method for developing an anatomic space for laparoscopic procedures with laparoscopic visualization |
| GB0314863D0 (en) * | 2003-06-26 | 2003-07-30 | Univ Dundee | Medical apparatus and method |
| US10537317B2 (en) * | 2015-10-12 | 2020-01-21 | Spine Ortho Center, P.A. | Anterior cervical distractor system and technique |
| CN109662742B (en) * | 2019-01-30 | 2020-04-14 | 重庆市肿瘤研究所 | Distraction instrument for laparoscopic surgery |
| CN110301947B (en) * | 2019-05-30 | 2020-11-17 | 中国医学科学院北京协和医院 | Tissue spreader under laparoscope |
| CN211155972U (en) * | 2019-11-12 | 2020-08-04 | 辽宁省肿瘤医院 | Thoracoscope tissue spreader |
| CN111603211B (en) * | 2020-06-09 | 2021-04-06 | 河南省中医院（河南中医药大学第二附属医院） | Spreading hook in lumbar vertebra operation |
| CN111772696A (en) * | 2020-07-21 | 2020-10-16 | 云南省第一人民医院 | Single-hole laparoscopic surgery operation platform through natural cavity |
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