CN211583357U

CN211583357U - Noninvasive suction forceps

Info

Publication number: CN211583357U
Application number: CN201921039305.8U
Authority: CN
Inventors: 周星; 苏文宇; 徐华苹; 罗丽飞; 王玉娥
Original assignee: Guangzhou T K Medical Instrument Co ltd
Current assignee: Guangzhou T K Medical Instrument Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-09-29
Anticipated expiration: 2029-07-04

Abstract

The non-invasive suction forceps of the utility model comprises a suction head and a core rod. The suction and grabbing head can be connected with a negative pressure source through the through hole of the core rod, and can suck tissues or organs under the negative pressure suction action of the negative pressure source, and the actions of moving, turning and the like of the tissues are realized. The suction and grabbing head forms uniform surface contact with the surface of the tissue or organ, so that the pressure of a local contact part is reduced, the accidental damage of the contact part is not easy to cause, and the tissue or organ is safer in the processes of grabbing, moving, turning and the like. The utility model discloses a noninvasive suction tongs still contains draws in the mechanism in, draws in the mechanism in and can will inhale the head of grabbing compression, draw in to through operation passageways such as puncture ware sheath pipe, and can inhale the head of grabbing after inhaling the head entering abdominal cavity release, especially be suitable for the putting into of the head of grabbing of inhaling among the laparoscopic minimal access surgery process.

Description

Noninvasive suction forceps

Technical Field

The utility model relates to a medical appliance, in particular to a noninvasive suction forceps appliance for noninvasive grasping of soft tissue.

Background

In clinical operation, especially with the development of endoscopic minimally invasive surgery, tissue or specimen often needs to be grabbed and moved during the operation, and the tissue or specimen cannot be damaged during grabbing and moving. For example, in the surgical operations of kidney, liver, lung, uterus, ovarian cyst, etc., since the organs or tissues themselves are fragile, if the control is not good, the organs or tissues are easily damaged accidentally or the tissue fluid leaks during the grabbing and moving process.

Especially for cystic tumors, great care is needed to remove the excised tumor, because once the tumor capsule is accidentally broken, seeding and metastasis of cancer cells are very easily caused, and the consequences are very serious.

In the existing clinical operation, the instruments for grasping and moving the tissue or the specimen are usually forceps, tweezers and other instruments, which usually generate a small-area local contact part with the first contact, and in addition, the instruments and the tissue contact part in the prior art are usually rigid parts, so that during the clinical use, the local pressure at the first contact part is very easy to be too high, thereby causing the accidental injury of the tissue or the rupture of the tumor or cyst. Accordingly, there is a need for improvements in the art.

The utility model aims at designing a no wound suction forceps, in the process of clinical operation, which is used for grabbing and moving the easily damaged tissue or organ.

Disclosure of Invention

The utility model aims at providing a do not have and inhale pincers of wound, through exerting even negative pressure appeal to the contact surface of snatching the tissue, guarantee in the process of snatching and moving tissue or organ, the attraction is exerted to tissue or organ surface evenly to the snatching surface of face contact to avoid causing accidental injury to tissue or organ, clinical use process is safer.

The utility model discloses a there is not pincers that inhale of wound, its characterized in that: the noninvasive suction forceps 900 comprises a suction head 1 and a core rod 2; the suction gripping head 1 is arranged at the front end of the core rod 2; the core rod 2 is provided with a through hole 21, the far end 2-1 of the through hole 21 is connected with the near end 1-2 of the suction head 1, and the near end 2-2 of the through hole 21 is connected with the negative pressure source 7.

The utility model discloses a do not have inhaling of creating pincers and grab head 1 warp through-hole 21 of core bar 21 can with negative pressure source 7 is connected under negative pressure suction effect of negative pressure source 7, inhale and grab head 1 and exert even negative pressure appeal to tissue or organ 8 surface, can with tissue or organ 8 inhales to realize the removal of tissue, turn the action such as. As the suction and grabbing head 1 is in surface contact with the surface of the tissue or organ 8, the pressure of a local contact part is greatly reduced, the accidental damage of the contact part is not easy to cause, and the process of grabbing, moving, turning and the like of the tissue or organ 8 is safer. And connect negative pressure source 7, inhale the head 1 and attract, grasp tissue or organ 8, disconnect negative pressure source 7, inhale the head 1 and relax, tissue or organ 8 break away from inhale the head, the use is very convenient.

Further, the suction head 1 is an elastic suction head 101. Especially when the working surfaces 1-11 of the elastic suction and gripping head 101 are made of flexible materials, the working surfaces 1-11 can be flexibly attached to the surface of the tissue or organ 8 during the suction and gripping process, and the force applied during the suction and gripping process is softer and is less prone to causing accidental injury to the tissue or organ 8.

The suction gripping head 1 is provided with a reinforcing rib 11. The reinforcing rib 11 is designed to enable the far end 1-1 of the suction head 1 to be easily opened, and the clinical use process is more convenient.

The reinforcing ribs 11 of the suction head 1 are of a radial structure. The radial structure design similar to the umbrella shape can ensure that the far end 1-1 of the suction head 1 can be uniformly radially expanded, the working surface 1-11 of the far end 1-1 of the suction head can better fit the tissue in the process of grabbing, and meanwhile, the suction head 1 can be conveniently folded.

The reinforcing ribs 11 of the suction head 1 are in a spiral radial structure. Due to the design of the spiral radial structure, the working surface 1-11 at the far end 1-1 of the suction head 1 can be uniformly unfolded, the suction head 1 can be supported better, and the grabbing process is more reliable. Meanwhile, when the suction gripping head 1 is folded, the suction gripping head can be folded along the spiral structure, and the folding process is very smooth.

The wall thickness of the suction gripping head 1 is not of equal thickness.

The wall thickness of the suction and gripping head 1 is 1-2 thick at the near end of the suction and gripping head, and 1-1 thin at the far end of the suction and gripping head. The design that the near end is thick and the far end is thin ensures the grabbing effect that the far end is gently attached to the tissue, and can provide good support for the sucking and grabbing head 1, so that the grabbing process is safer.

The connection between the far end 2-1 of the through hole 21 on the core rod 2 and the near end 1-2 of the suction head 1 is air-tight. The air-tight connection ensures that gas leakage cannot be generated in the negative pressure suction process, on one hand, negative pressure suction can be quickly formed, and on the other hand, the gas leakage in the pneumoperitoneum can be reduced as much as possible in the minimally invasive process of the endoscope.

The noninvasive suction forceps 900 is provided with a switch 3, and the switch 3 capable of controlling the negative pressure state of the through hole 21 of the core bar 2 is arranged at the proximal end of the core bar 2. The switch 3 can control the negative pressure state of the through hole 21, thereby controlling the suction and grabbing head 1 to be in the suction state or the loose state.

The noninvasive suction forceps 900 is provided with a handle 4, and the handle 4 is connected to the proximal end of the core rod 2. The handle 4 can be conveniently held by a clinician, and is more comfortable in use.

The switch 3 is mounted on the handle 4. Switch 3 installs on handle 4, in the clinical use process, can directly be in during the clinician operation control on handle 4 switch 3 realizes one-hand operation, does not need solitary staff moreover right negative pressure source 7 opens or closes, and clinical use is more convenient.

The noninvasive suction forceps 900 is provided with a furling mechanism 5 which can compress the suction head 1 and release the suction head 1. the furling mechanism 5 is arranged at the outer side of the suction head 1. The furling mechanism 5 can compress and furl the suction gripping head 1, so that the suction gripping head 1 can be released after the suction gripping head 1 enters the abdominal cavity through surgical channels such as a puncture outfit sheath tube and the like. The folding mechanism 5 is particularly suitable for placing the suction and gripping head 1 in the endoscopic minimally invasive surgery process.

The furling mechanism 5 is a sleeve 51 sleeved on the core rod 2. The design of the sleeve 51 is that the suction and gripping head 1 can be put into the sleeve only by pushing the sleeve 51 forwards, the suction and gripping head 1 is put into a body through an operation channel, and then the sleeve 51 is pulled backwards, so that the suction and gripping head 1 can be released, and the suction and gripping head can be repeatedly folded or released as required, and the operation is very simple in clinical use. A sealing device 6 is arranged between the sleeve 51 and the core rod 2, and the sealing device 6 can ensure that gas in the abdominal cavity does not leak in the operation process and ensure the stability of the pneumoperitoneum.

The folding mechanism 5 is a binding wire 52 binding the gripper head 1. The design of strapping line, before the suction gripping head 1 gets into internal in advance through the strapping line 52 will the suction gripping head 1 draws in, only needs to stimulate after getting into internal the strapping line 52 can release the suction gripping head 1, easy operation and manufacturing cost are lower.

The suction gripping head 1 is of a bell mouth type structure. The horn mouth type structural design can better ensure that the working surface 1-11 of the suction and grabbing head 1 can be in surface contact with the surface of the tissue or organ 8, the force distribution in the grabbing process is more uniform and soft, and the clinical use process is safer.

The suction gripping head 1 adopts a rotator structure. The design of the rotator structure can make the suction gripping head 1 be folded and unfolded evenly.

The suction gripping head 1 adopts a rotator structure with a small near end and a large far end. Such a structure of a rotator with a small proximal end and a large distal end particularly facilitates the folding and unfolding of the large-sized suction head 1.

The switch 3 of the noninvasive suction forceps 900 is provided with 3 states of negative pressure suction, negative pressure maintaining and negative pressure removing; by adjusting the switch 3 of the noninvasive suction forceps 900, the through hole 21 on the core rod 2 and the suction gripping head 1 connected with the core rod can be respectively in 3 states of negative pressure suction, negative pressure maintaining and negative pressure removing. The three-state design can ensure that the negative pressure suction of the noninvasive suction forceps 900 is kept in a constant state in the working process, the accidental injury of the tissue or organ 8 caused by the overlarge suction force due to continuous suction can not be caused, and the suction and grabbing head 1 can not fall off from the surface of the tissue or organ 8 caused by the release of the negative pressure.

The applicant has only specifically described the structure of the above-mentioned rotating body, and in practical applications, a person skilled in the art can design different configurations of the suction head as required, without departing from the scope of protection of the present application.

The reinforcing ribs 11 of the suction head 1 are made of medical elastic metal materials or medical elastic polymer materials.

The manufacture of said reinforcing bars 11 is selected from: medical elastic stainless steel, titanium-nickel shape memory alloy and elastic nylon wire. The reinforcing ribs 11 designed by the titanium-nickel shape memory alloy material can be prefabricated into a small-diameter columnar structure in vitro, and can be automatically unfolded under the action of body temperature after entering a human body, so that the automatic unfolding of the suction and gripping head 1 in the body is realized.

The ribs 11 may be any of the above-mentioned elastic materials or other materials and combinations thereof, which are not listed herein by the applicant, but do not depart from the scope of the present application.

The suction gripping head 1 is made of medical elastic materials.

The medical elastic material of the suction gripping head 1 is selected from: medical silica gel, medical rubber, medical polyurethane, medical polyethylene, medical nylon, medical polypropylene and combinations thereof.

The suction head 1 can be any of the various elastic materials mentioned above or other materials and combinations thereof, which the applicant does not cite here, without however departing from the scope of protection of the present application.

The noninvasive suction forceps 900 are made of medical materials. The design of the medical material can better meet the requirement of clinical biocompatibility.

Use for the example through cavity mirror kidney operation, during clinical use, at first will inhale and grab head 1 and draw in the sleeve pipe 51, will negative pressure holding state is arranged in to switch 3, will noninvasive suction forceps 900 inhale and grab head 1 and put into the abdominal cavity through puncture ware sheath pipe, then move back sleeve pipe 51, release inhale and grab head 1, then will switch 3 is arranged in the negative pressure and is attracted the state, opens negative pressure source 7, inhale and grab head 1 and adsorb on the kidney surface, treat when inhaling and grab head 1 can drive the kidney and remove and turn, will negative pressure holding state is arranged in to switch 3, carries out the various operations of kidney this moment, and the back is accomplished in the operation, will switch 3 is arranged in the negative pressure and is relieved the state, and the negative pressure is relieved this moment, inhale and grab head 1 and break away from the kidney surface, can with the utility model discloses noninvasive suction forceps 900 takes out from the internal.

The non-invasive suction forceps of the utility model comprises a suction head 1 and a core bar 2. The suction and grabbing head 1 can be connected with the negative pressure source 7 through the through hole 21 of the core rod 21, and under the negative pressure suction action of the negative pressure source 7, the suction and grabbing head 1 can suck the tissue or organ 8 and realize the movement, turning and other actions of the tissue. Because the suction and gripping head 1 is in uniform surface contact with the surface of the tissue or organ 8, the pressure of a local contact part is greatly reduced, the accidental damage of the contact part is not easy to cause, and the process of gripping, moving, turning and the like of the tissue or organ 8 is safer. Moreover, the switch 3 can make the through hole 21 on the core rod 2 and the suction and gripping head 1 connected with the through hole in 3 states of negative pressure suction, negative pressure maintaining and negative pressure removing, respectively, so as to ensure that the negative pressure suction of the noninvasive suction forceps 900 is maintained in a constant state in the working process. The utility model discloses a pair of noninvasive suction tongs still contains draws in mechanism 5 in, draw in mechanism 5 in can with inhale and grab first 1 compression, draw in to through operation passageways such as puncture ware sheath pipe, and can inhale and grab first 1 release after getting into the abdominal cavity inhale and grab first 1, be particularly suitable for the chamber mirror minimal access surgery in-process inhale and grab first 1 and put into.

Drawings

Fig. 1 is a schematic perspective view of the non-invasive suction forceps of the present invention.

Fig. 1-1 is a schematic view of the working principle of fig. 1.

Fig. 1-2 are front views of fig. 1.

Fig. 1-3 are cross-sectional views a-a of fig. 1-2.

Fig. 1-4 are enlarged views at B of fig. 1-3.

Fig. 2 is a schematic perspective view of the non-invasive suction forceps with a switch.

Fig. 2-1 is a schematic view of the working principle of fig. 2.

Fig. 2-2 is a top view of the switch of fig. 2 in a negative pressure-attracting state.

Fig. 2-3 is a cross-sectional view C-C of fig. 2-2, showing the switch in a negative pressure-attracting configuration.

Fig. 2-4 are top views of the switch of fig. 2 in a negative pressure holding state.

Fig. 2-5 are cross-sectional views D-D of fig. 2-4, showing the switch in a negative pressure holding state.

Fig. 2 to 6 are plan views of the switch of fig. 2 in a negative pressure discharging state.

Fig. 2 to 7 are sectional views E to E of fig. 2 to 6, showing the structure of the switch in a negative pressure discharging state.

Fig. 3 is a schematic structural view of the non-invasive suction forceps of the present invention with a handle.

Fig. 3-1 is a schematic diagram of the operation of fig. 3.

Fig. 3-2 is a top view of the switch of fig. 3 in a negative pressure suction state.

Fig. 3-3 is a sectional view F-F of fig. 3-2, showing the switch in a negative pressure-attracting state.

Fig. 3-4 are top views of the switch of fig. 3 in a negative pressure holding state.

Fig. 3-5 are G-G cross-sectional views of fig. 3-4, showing the switch in a negative pressure holding state.

Fig. 3 to 6 are plan views of the switch of fig. 3 in a negative pressure discharging state.

Fig. 3 to 7 are sectional views H-H of fig. 3 to 6, showing the structure of the switch in a negative pressure discharging state.

Fig. 4 is a schematic perspective view of the non-invasive suction forceps with a sleeve-type furling mechanism.

Figure 4-1 is a schematic view of the configuration of figure 4 with the gripper head released.

Fig. 4-2 is a functional diagram of fig. 4-1.

Fig. 4-3 is a front view of fig. 4-1.

Fig. 4-4 is a cross-sectional view I-I of fig. 4-3.

Fig. 4-5 are enlarged views at J of fig. 4-4.

Fig. 4-6 are front views of fig. 4.

Fig. 4-7 are cross-sectional views K-K of fig. 4-6.

Fig. 4-8 are enlarged views L of fig. 4-7.

Fig. 5 is a schematic structural view of the non-invasive suction forceps of the present invention with reinforcing ribs.

Fig. 5-1 is an enlarged view at M of fig. 5.

Fig. 6 is a schematic structural view of the non-invasive suction forceps of the present invention using an elastic wire mesh as a reinforcing rib.

Fig. 7 is a schematic structural view of the non-invasive suction forceps of the present invention including a binding wire type furling mechanism.

Fig. 7-1 is an enlarged view at N of fig. 7.

Figure 7-2 is a schematic view of the configuration of figure 7 when the gripper head is released.

In the above figures:

101 is an elastic suction head, 900 is the non-invasive suction forceps of the utility model.

1 is a suction head, 2 is a core bar, 3 is a switch, 4 is a handle, 5 is a furling device, 6 is a sealing device, 7 is a negative pressure source, and 8 is the tissue or organ.

11 is a reinforcing rib, 1-1 is the far end of the suction head, 1-2 is the near end of the suction head, and 1-11 is the working surface of the suction head.

21 is a through hole, 22 is a negative pressure interface, 2-1 is a far end of the through hole, and 2-2 is a near end of the through hole.

51 is a sleeve, 52 is a binding wire, and 52-1 is a pull ring.

And 61 is a sealing ring.

Detailed Description

Example 1: the noninvasive suction forceps of the utility model

Referring to fig. 1-4, the non-invasive suction forceps of the present embodiment includes a suction head 1 and a core rod 2.

The suction gripping head 1 is arranged at the front end of the core rod 2; the core rod 2 is provided with a through hole 21, the far end 2-1 of the through hole 21 is connected with the near end 1-2 of the suction head 1, and the near end 2-2 of the through hole 21 is connected with the negative pressure source 7.

In this embodiment, the gripper head 1 is an elastic gripper head 101. The working surfaces 1-11 of the elastic suction and gripping head 101 are made of flexible materials, in the suction and gripping process, the working surfaces 1-11 can be flexibly attached to the surface of the tissue or organ 8, the force applied in the suction and gripping process is softer, and accidental injury to the tissue or organ 8 is less prone to being caused.

Of course, in practical applications, the gripper head 1 may also be of rigid design, which the applicant does not specifically exemplify here, without however departing from the scope of protection of the present application.

Referring to fig. 2, 3, 5 and 5-1, the suction head 1 is provided with a reinforcing rib 11. The reinforcing rib 11 is designed to enable the far end 1-1 of the suction head 1 to be easily opened, and the clinical use process is more convenient.

In this embodiment, the ribs 11 of the gripper head 1 are of a radial configuration. The radial structure design similar to the umbrella shape can ensure that the far end 1-1 of the suction head 1 can be uniformly radially expanded, the working surface 1-11 of the far end 1-1 of the suction head can better fit the tissue in the process of grabbing, and meanwhile, the suction head 1 can be conveniently folded.

Of course, in practical application, the reinforcing ribs 11 of the gripper head 1 may be designed in various other structures, for example, the reinforcing ribs 11 of the gripper head 1 may be in a spiral radial structure. Due to the design of the spiral radial structure, the working surface 1-11 at the far end 1-1 of the suction head 1 can be uniformly unfolded, the suction head 1 can be supported better, and the grabbing process is more reliable. Meanwhile, when the suction gripping head 1 is folded, the suction gripping head can be folded back along the spiral structure, and the folding process is very smooth. The various structural designs described above do not depart from the scope of the present application.

The material for manufacturing the reinforcing rib 11 can be various materials such as medical elastic stainless steel, titanium-nickel shape memory alloy, elastic nylon wire and the like. The reinforcing ribs 11 of the titanium-nickel shape memory alloy net can be prefabricated into a small-diameter columnar structure in vitro, and after entering a human body, the suction head 1 automatically expands in vivo under the action of body temperature, referring to fig. 6.

With reference to fig. 1-3 and 1-4, the wall thickness of the gripper head 1 is not of equal thickness.

Referring to fig. 1 to 4, in the present embodiment, the suction head 1 has a bell-mouth structure. The horn mouth type structural design can better ensure that the working surface 1-11 of the suction and grabbing head 1 can be in surface contact with the surface of the tissue or organ 8, the force distribution in the grabbing process is more uniform and soft, and the clinical use process is safer.

In practical applications, a person skilled in the art can design various structures of the suction head 1 according to needs, for example, the suction head 1 can adopt a rotator structure with a small proximal end and a large distal end to facilitate folding and unfolding of the suction head 1. Applicants do not intend to be specifically exemplified herein, but do not intend to be so limited.

The suction gripping head 1 is made of medical elastic materials.

The connection between the far end 2-1 of the through hole 21 on the core rod 2 and the near end 1-2 of the suction head 1 is air-tight. The air-tight connection ensures that gas leakage cannot occur in the negative pressure suction process, on one hand, negative pressure suction can be quickly formed, and on the other hand, the gas leakage in pneumoperitoneum can be reduced as much as possible when the negative pressure suction device is used in endoscopic surgery.

Referring to fig. 2-3-7, in this embodiment, the atraumatic forceps 900 includes a switch 3 and a handle 4. The handle 4 is connected to the proximal end of the core rod 2, the tail of the handle 4 is provided with a negative pressure interface 22, and the negative pressure source 7 is communicated with the through hole 21 through the negative pressure interface 22. The switch 3 is mounted on the handle 4. The switch 3 can control the negative pressure state of the through hole 21, thereby controlling the suction and grabbing head 1 to be in the suction state or the loose state. The handle 4 can be conveniently held by a clinician, and is more comfortable in use.

Referring to fig. 2-2 to 2-7 and 3-2 to 3-7, the switch 3 is provided with 3 states of negative pressure suction, negative pressure holding, and negative pressure discharge; by adjusting the switch 3 of the noninvasive suction forceps 900, the through hole 21 on the core rod 2 and the suction gripping head 1 connected with the core rod can be respectively in 3 states of negative pressure suction, negative pressure maintaining and negative pressure removing. The three-state design can ensure that the negative pressure suction of the noninvasive suction forceps 900 is kept in a constant state in the working process, the accidental injury of the tissue or organ 8 caused by the overlarge suction force due to continuous suction can not be caused, and the suction and grabbing head 1 can not fall off from the surface of the tissue or organ 8 caused by the release of the negative pressure.

Switch 3 installs on handle 4, in the clinical use process, can directly be in during the clinician operation control on handle 4 switch 3 realizes one-hand operation, does not need solitary staff moreover right negative pressure source 7 opens or closes, and clinical use is more convenient.

In this embodiment, the atraumatic forceps 900 are made of medical materials. The design of the medical material can better meet the requirement of clinical biocompatibility.

During clinical use to open operation in lung as an example, at first will switch 3 arranges the negative pressure hold state in, will inhale and grab head 1 and put into the operation region, then will switch 3 arranges the negative pressure in and attracts the state, opens negative pressure source 7, inhale and grab head 1 and adsorb on the lung surface, treat inhale when grabbing head 1 can drive the lung leaf and remove and turn, will switch 3 arranges the negative pressure hold state in, carries out various operation actions this moment, and the operation is accomplished the back, will switch 3 arranges the negative pressure in and removes the state, and the negative pressure is removed this moment, inhale and grab head 1 and break away from the lung leaf surface, can with the utility model discloses a noninvasive suction tongs 900 takes out from the internal.

In this embodiment, because the elastic suction and gripping head 101 is adopted for the suction and gripping head 1, the working surfaces 1-11 of the elastic suction and gripping head 101 are in uniform and soft surface contact with the surface of the tissue or organ 8, so that the pressure of a local contact part is greatly reduced, accidental damage of the contact part is not easily caused, and the accidental damage of the tissue passing through the organ can be avoided to the maximum extent in the processes of grabbing, moving, turning and the like of the tissue or organ 8. Moreover, the switch 3 can make the through hole 21 on the core rod 2 and the suction and grabbing head 1 connected with the core rod in 3 states of negative pressure suction, negative pressure maintaining and negative pressure removing respectively, so that the negative pressure suction of the noninvasive suction forceps 900 can be maintained in a constant state in the working process, the accidental damage of the tissue or organ 8 caused by the overlarge suction force due to continuous suction can be avoided, the suction and grabbing head 1 can not fall off from the surface of the tissue or organ 8 due to the negative pressure release, and the clinical process is safer.

Embodiment 2, including the sleeve tube furling device the non-invasive suction forceps of the present invention

Referring to fig. 4 to fig. 8, the present embodiment is different from embodiment 1 in that in the present embodiment, the atraumatic forceps 900 further includes a furling mechanism 5.

Referring to fig. 4 and 4-1, the furling mechanism 5 can compress the gripper head 1 and release the gripper head 1, and the furling mechanism 5 is disposed outside the gripper head 1. The furling mechanism 5 can compress and furl the suction gripping head 1, so that the suction gripping head 1 can be released after the suction gripping head 1 enters the abdominal cavity through surgical channels such as a puncture outfit sheath tube and the like. The folding mechanism 5 is particularly suitable for placing the suction and gripping head 1 in the endoscopic minimally invasive surgery process.

In this embodiment, the furling mechanism 5 is a sleeve 51 sleeved outside the core rod 2.

Referring to fig. 4-4, 4-5, 4-6 and 4-8, a sealing mechanism 6 is provided between the sleeve 51 and the core rod 2, and the sealing mechanism 6 can ensure that the gas in the abdominal cavity does not leak during operation and ensure the stability of the pneumoperitoneum.

In this embodiment, the sealing mechanism 6 is a seal ring 61. In practice, those skilled in the art can design various sealing devices according to the needs, and the applicant does not list them here, but does not depart from the scope of protection of the present application.

The design of the sleeve 51 is that the suction and gripping head 1 can be put into the sleeve only by pushing the sleeve 51 forwards, the suction and gripping head 1 is put into a body through an operation channel, and then the sleeve 51 is pulled backwards, so that the suction and gripping head 1 can be released, and the suction and gripping head can be repeatedly folded or released as required, and the operation is very simple in clinical use.

Referring to fig. 4 to 4-2, taking laparoscopic kidney surgery as an example, in clinical use, firstly, the suction head 1 is folded into the sleeve 51, the switch 3 is placed in a negative pressure maintaining state, the suction head 1 of the noninvasive forceps 900 is placed into the abdominal cavity through a puncture sheath, then the sleeve 51 is retreated to release the suction head 1, then the switch 3 is placed in a negative pressure suction state, the negative pressure source 7 is turned on, the suction head 1 is adsorbed on the surface of the kidney, when the suction head 1 can drive the kidney to move and turn, the switch 3 is placed in the negative pressure maintaining state, at this time, various operations of the kidney are performed, after the operations are completed, the switch 3 is placed in a negative pressure releasing state, at this time, the negative pressure is released, the suction head 1 is separated from the surface of the kidney, the sleeve 51 is pushed forward, and the suction head 1 is folded into the sleeve 51, the noninvasive suction forceps 900 of the present invention can be taken out through the sheath of the puncture outfit.

Compared with the embodiment 1, the suction and gripping head 1 can be very conveniently placed into the body from the operation channel such as a puncture outfit sheath tube and the like due to the sleeve 51, and is particularly suitable for being used in minimally invasive endoscopic surgery.

Embodiment 3, the non-invasive suction forceps of the present invention comprising a wire-binding type furling mechanism

Referring to fig. 7 to 7-2, the present embodiment is different from embodiment 2 in that the furling mechanism 5 is a binding wire 52 binding the gripper head 1 in this embodiment.

Referring to fig. 7 and 7-1, the binding wire 52 is bound to the outside of the gripper head 1 to gather the gripper head.

Still taking endoscopic kidney surgery as an example, during clinical use, the far end of the binding wire 52 is used to bind and fold the suction and grasping head 1, the switch 3 is placed in a negative pressure maintaining state, the suction and grasping head 1 is placed in the abdominal cavity through a puncture device sheath tube, then the pull ring 52-1 of the binding wire 52 which is left outside the body is pulled, the binding wire 52 is loosened, the suction and grasping head 1 is unfolded, referring to fig. 7-2, the suction and grasping head 1 is released, then the switch 3 is placed in a negative pressure suction state, the negative pressure source 7 is started, the suction and grasping head 1 is adsorbed on the surface of the kidney, when the suction and grasping head 1 can drive the kidney to move and turn over, the switch 3 is placed in a negative pressure maintaining state, various kidney surgeries are performed at the moment, after the surgeries are completed, the switch 3 is placed in a negative pressure relieving state, the negative pressure is relieved at the moment, and the suction and the grasping head 1 is separated from the surface, in the process of pulling the suction gripping head 1 out of the body, the suction gripping head 1 is a rotator structure with a small proximal end and a large distal end, so that the suction gripping head can be pulled out of the body from the sheath of the puncture outfit while being folded very easily.

Compared with the embodiment 2, the embodiment has the advantages that the strapping line is designed, the suction head 1 is folded by the strapping line 52 in advance before the suction head 1 enters the body, the suction head 1 can be released only by pulling the strapping line 52 after the suction head 1 enters the body, the operation is simple, and the manufacturing cost is lower.

It should be noted that the structures disclosed and described herein may be replaced by other structures having the same effect, and the embodiments described herein are not the only structures for implementing the present invention. Although preferred embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that these embodiments are merely illustrative and that numerous changes, modifications and substitutions can be made without departing from the invention herein, and it is intended that the scope of the invention be defined by the spirit and scope of the appended claims.

Claims

1. Noninvasive suction tongs, its characterized in that: the noninvasive suction forceps (900) comprise a suction grasping head (1) and a core rod (2); the suction gripping head (1) is arranged at the front end of the core rod (2); the core rod (2) is provided with a through hole (21), the far end (2-1) of the through hole (21) is connected with the near end (1-2) of the suction and grabbing head (1), and the near end (2-2) of the through hole (21) is connected with a negative pressure source (7).

2. The non-invasive suction forceps according to claim 1, characterized in that: the suction and grabbing head (1) is an elastic suction and grabbing head (101).

3. The non-invasive suction forceps according to claim 1, characterized in that: and the suction and grabbing head (1) is provided with a reinforcing rib (11).

4. The non-invasive suction forceps according to claim 3, characterized in that: the reinforcing ribs (11) of the suction and grabbing head (1) are of a radial structure.

5. The non-invasive suction forceps according to claim 3, characterized in that: the reinforcing ribs (11) of the suction and grabbing head (1) are of a spiral radial structure.

6. The non-invasive suction forceps according to claim 1, characterized in that: the wall thickness of the suction and gripping head (1) is not equal.

7. The non-invasive suction forceps according to claim 6, characterized in that: the wall thickness of the suction and grabbing head (1) is thick at the near end (1-2) of the suction and grabbing head, and is thin at the far end (1-1) of the suction and grabbing head.

8. The non-invasive suction forceps according to claim 1, characterized in that: the connection between the far end (2-1) of the through hole (21) on the core rod (2) and the near end (1-2) of the suction and grabbing head (1) is air-tight.

9. The non-invasive suction forceps according to claim 1, characterized in that: the noninvasive suction forceps (900) are provided with a switch (3), and the switch (3) capable of controlling the negative pressure state of the through hole (21) of the core rod (2) is arranged on the near end of the core rod (2).

10. The non-invasive suction forceps according to claim 1, characterized in that: the noninvasive suction forceps (900) are provided with handles (4), and the handles (4) are connected to the near end of the core rod (2).

11. The non-invasive suction forceps according to claim 10, characterized in that: the handle (4) is provided with a switch (3).

12. The non-invasive suction forceps according to claim 1, characterized in that: noninvasive suction forceps (900) are provided with a furling mechanism (5) which can be compressed to suck a gripper head (1) and release the suction gripper head (1) the furling mechanism (5) is arranged at the outer side of the suction gripper head (1).

13. The non-invasive suction forceps according to claim 12, characterized in that: the furling mechanism (5) is a sleeve (51) sleeved on the core rod (2).

14. The non-invasive suction forceps according to claim 12, characterized in that: the furling mechanism (5) is a binding wire binding the suction gripping head (1).

15. The non-invasive suction forceps according to claim 1, characterized in that: the suction and grabbing head (1) is of a bell mouth type structure.

16. The non-invasive suction forceps according to claim 1, characterized in that: the suction and grabbing head (1) adopts a rotator structure.

17. The non-invasive suction forceps according to claim 16, characterized in that: the suction and grabbing head (1) adopts a rotator structure with a small near end and a large far end.

18. The non-invasive suction forceps according to claim 10, characterized in that: the switch (3) of the noninvasive suction forceps (900) is provided with 3 states of negative pressure suction, negative pressure maintaining and negative pressure removing; through adjusting the switch (3) of the noninvasive suction forceps (900), the through hole (21) on the core bar (2) and the suction gripping head (1) connected with the through hole can be respectively in 3 states of negative pressure suction, negative pressure maintaining and negative pressure removal.

19. The non-invasive suction forceps according to claim 3, characterized in that: the reinforcing ribs (11) of the suction and gripping head (1) are made of medical elastic metal materials or medical elastic polymer materials.

20. The non-invasive suction forceps according to claim 19, wherein: -manufacturing said reinforcing bar (11) is selected from: medical elastic stainless steel, titanium-nickel shape memory alloy and elastic nylon wire.

21. The non-invasive suction forceps according to claim 1, characterized in that: the suction and grabbing head (1) is made of medical elastic materials.

22. The non-invasive suction forceps according to claim 1, characterized in that: the medical elastic material of the suction and gripping head (1) is selected from: medical silica gel, medical rubber, medical polyurethane, medical polyethylene, medical nylon, medical polypropylene and combinations thereof.

23. The non-invasive suction forceps according to claim 1, characterized in that: the noninvasive suction forceps (900) are made of medical materials.