In-vivo tissue isolation device

Abstract

The invention discloses an in-vivo tissue isolation device, and relates to the field of medical instruments. Comprising a control assembly and an end assembly, the control assembly is provided with a hollow outer sleeve, one end of the outer sleeve is provided with a release switch, and the other end of the outer sleeve can enter a human body and is fixed to a set position; the end head assembly is movably connected to the end, away from the release switch, of the outer sleeve, the release switch can control the end head assembly to be opened or closed, after the end head assembly is opened, the position of the opened end head assembly is manually adjusted, one end of the end head assembly is fixed to the epidermis, and then after a doctor manually upwarps in-vivo tissue, the end head assembly is fixed to the epidermis. The tissue in the body is isolated from the surgical region using the splayed tip assembly. The in-vivo tissue isolation device provided by the invention can effectively isolate in-vivo tissues, expose the surgical field and reduce the surgical risk.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an in vivo tissue isolation device. Background Art

[0002] In laparoscopic surgery, especially gastric tissue resection surgery, internal tissues and organs overlap and block the target surgical site. Full exposure of the surgical field is essential for accurate and effective surgery. A clear field of view enables us to better identify anatomical structures, perform precise cutting and suturing, and thus improve the accuracy of the surgery. During laparoscopic surgery, internal tissues often slide to various areas of the abdomen, affecting surgical operations and increasing surgical risks.

[0003] In order to obtain a good surgical field of view, the patient's body position is generally adjusted, and the surgical field of view is exposed by shifting with the help of gravity. In addition, active pulling and pushing are decisive. At present, there is no dedicated internal tissue blocking and pushing device on the market. Doctors can only use gauze pads to simply surround the internal tissue to achieve fixation, but the effect is unstable during the operation, and the internal tissue will overflow from the edge of the gauze, affecting the surgical operation.

[0004] Therefore, when performing laparoscopic surgery, it is urgent to develop an internal tissue isolation device that can effectively isolate the internal tissue, reveal the surgical field of view, and reduce surgical risks. Summary of the invention

[0005] The purpose of the present invention is to provide an internal tissue isolation device to solve the problems existing in the above-mentioned prior art, which can effectively isolate internal tissues, reveal the surgical field of view, shorten the operation time and reduce the surgical risk.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides an in vivo tissue isolation device, comprising:

[0008] A control assembly having an outer sleeve with a hollow interior, a release switch being provided at one end of the outer sleeve and the other end being capable of entering the human body and being fixed at a set position;

[0009] The end assembly is movably connected to the end of the outer sleeve away from the release switch, and the release switch can control the opening or closing of the end assembly, and the end assembly in the open state can isolate the body tissue from the surgical area. That is, after the end assembly is opened, the position of the opened end assembly is manually adjusted, and then the outer sleeve is fixed to the epidermis, so that the end assembly is fixed at the desired set position, and the set position generally refers to the position close to the surgical area. Subsequently, the doctor manually lifts up the body tissue and uses the opened end assembly to isolate the body tissue from the surgical area.

[0010] Preferably, the end head assembly includes a connecting piece and an elastic support ring, the connecting piece is parallel to the axis of the outer sleeve, and the length of the connecting piece is greater than the length of the outer sleeve; one end of the connecting piece is connected to the release switch, and the other end of the connecting piece is connected to an end of the outer sleeve away from the release switch through the elastic support ring; the release switch can drive the elastic support ring to open or close through the connecting piece, and the elastic support ring has a smooth arc structure in the open state, and has a rod-shaped structure parallel to the axis of the outer sleeve in the closed state.

[0011] Preferably, the end head assembly includes two elastic support rings symmetrically arranged on both sides of the connecting piece; an isolation net is connected between the two elastic support rings; when the elastic support rings are in an open state, the isolation net is unfolded and is located in a closed space between the two elastic support rings.

[0012] Preferably, the end head assembly includes two elastic support rings symmetrically arranged on both sides of the connecting piece; an isolation net is connected between the inner side of the elastic support ring and the connecting piece; when the elastic support ring is in an open state, the isolation net is unfolded and is located in a closed space between the elastic support ring and the connecting piece.

[0013] Preferably, the end head assembly also includes a smooth guide head, which is fixed to the end of the connecting member away from the release switch, one end of the elastic support ring is movably connected to the guide head, and the other end is movably connected to the end of the outer sleeve away from the release switch.

[0014] Preferably, the connecting piece is inserted into the outer sleeve, and the guide head is fixedly provided on the end of the connecting piece away from the release switch after passing through the outer sleeve.

[0015] Preferably, the control component further comprises a handle, the handle is fixedly connected to one end of the outer sleeve, an axial track is provided on the side wall of the handle, the release switch is sleeved on the handle and can reciprocate along the axial track.

[0016] Preferably, the connecting member is a push rod, the push rod is inserted into the outer sleeve, and one end of the push rod is fixedly connected to the release switch.

[0017] Preferably, the control component further comprises a positioning plate, which is sleeved on the outer sleeve. When one end of the outer sleeve enters the tissue position in the human body, the positioning plate is located outside the human body and fits against the human epidermis.

[0018] Preferably, a through hole is provided on the positioning plate, and a locking device is fixedly provided at one end of the positioning plate, and the other end of the positioning plate is used to adhere to the human epidermis; a cross groove is provided in the locking device which is coaxial with and connected to the through hole, and the locking device can drive the cross groove to contract and lock the outer sleeve.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The present invention uses an outer sleeve to extend a closed end assembly into a tissue position in a human body, uses a release switch to open the end assembly, and after the end assembly is opened, manually adjusts the position of the opened end assembly, and then fixes the outer sleeve to the epidermis, thereby fixing the end assembly at a desired set position. Subsequently, the doctor manually lifts up the internal tissue and uses the opened end assembly to isolate the internal tissue from the surgical area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a closed state of a tip assembly of an in vivo tissue isolation device in one or some embodiments of the present invention;

[0023] Figure 2 A schematic diagram of an open state of a tip assembly of an in vivo tissue isolation device in one or some embodiments of the present invention;

[0024] Figure 3 A schematic diagram of a positioning plate in one or some embodiments of the present invention;

[0025] In the figure: 1-release switch, 2-handle, 3-axial track, 4-outer sleeve, 5-positioning plate, 501-locking device, 502-cross groove, 6-push rod, 7-elastic support ring, 8-guide head, 9-isolation net. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The purpose of the present invention is to provide an internal tissue isolation device to solve the problems existing in the above-mentioned prior art, which can effectively isolate internal tissues, reveal the surgical field of view, and reduce surgical risks.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In laparoscopic surgery, especially gastric tissue resection surgery, the internal tissues and organs overlap with each other, blocking the target surgical site. In order to effectively isolate the internal tissues from the surgical area and reveal the surgical field, the present invention provides an internal tissue isolation device, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a control component and a terminal component. The control component has an outer sleeve 4 with a hollow interior. A release switch 1 is provided at one end of the outer sleeve 4, and the other end can enter the human body and be fixed at a set position. The set position of this embodiment is close to the surgical area and needs to be isolated from the body tissues in the surgical area. The terminal component is movably connected to the end of the outer sleeve 4 away from the release switch 1. The release switch 1 can control the opening or closing of the terminal component. When in use, the terminal component is in a closed state and enters the human body together with the outer sleeve 4. The terminal component in the closed state is similar to a rod-shaped structure, so that it can enter the abdominal cavity percutaneously or enter the abdominal cavity through the internal channel of the puncture device. After entering the human body, the release switch 1 can open the terminal component, and the terminal component in the open state can form an isolation surface, which can isolate the body tissues from the surgical area.

[0030] In one embodiment, the terminal assembly adopts an inflatable structure, which is an airbag structure with a hollow strip inside in the closed state, and one end of the terminal assembly is closed, and the other end is sealed and connected to the outer sleeve 4. The release switch 1 is connected to an external inflation device. After turning on the release switch 1, air can be inflated into the terminal assembly through the outer sleeve 4, so that the terminal assembly is inflated and expanded into a spherical structure. At this time, the release switch 1 is closed, and the gas in the outer sleeve 4 and the terminal assembly remains unchanged, thereby isolating the tissue.

[0031] In another embodiment, the end assembly includes a connector and an elastic support ring 7. The connector is parallel to the axis of the outer sleeve 4 and can be arranged on the outside of the outer sleeve 4. In order to protect the connector and prevent it from scratching against human tissue, the connector is inserted into the outer sleeve 4 in this embodiment. The length of the connector is greater than the length of the outer sleeve 4. When in use, the end of the connector located outside the human body is connected to the release switch 1, and the end of the connector located inside the human body is connected to the end of the outer sleeve 4 away from the release switch 1 through the elastic support ring 7. The release switch 1 moves along the axis of the outer sleeve 4, thereby driving the connector to move forward and backward. When the connector moves toward the end close to the release switch 1, the end of the connector drives the elastic support ring 7 to move. Since the other end of the elastic support ring 7 is connected to the outer sleeve 4, the end of the elastic support ring 7 away from the outer sleeve 4 opens under the action of tension and bends into a smooth arc structure, so that the tissue can be isolated from the surgical area through the arc structure. The release switch 1 moves in the reverse direction. Under the elastic restoring force of the elastic support ring 7, the elastic support ring 7 is reset to a rod-shaped structure parallel to the axis of the outer sleeve 4, so as to facilitate entering and exiting the human body.

[0032] The supporting and isolating effect of the simple elastic support ring 7 after deformation is limited. In order to further improve the isolation effect on human tissue, in one embodiment, the end assembly adopts two elastic support rings 7 symmetrically arranged on both sides of the connecting piece; an isolation net 9 is connected between the two elastic support rings 7; when the elastic support rings 7 are in an open state, the isolation net 9 is unfolded and located in the closed space between the two elastic support rings 7. At this time, the elastic support rings 7 and the isolation net 9 form a structure similar to a net bag, which has a larger mesh partition surface, which can separate human tissue from the surgical area; when the two elastic support rings 7 are in a closed state, the two elastic support rings 7 are parallel and arranged in parallel rod-like structures, and the isolation net 9 is clamped between the two elastic support rings 7 for easy entry and exit of the human body.

[0033] In another preferred embodiment, the arrangement of the isolation net 9 can be further improved. In this embodiment, two isolation nets 9 are provided, and an isolation net 9 is connected between the inner side of each elastic support ring 7 and the adjacent side of the connecting piece, so that the above-mentioned open or closed state can also be achieved. In this embodiment, since two isolation nets 9 are used and the two isolation nets 9 are respectively located on both sides of the connecting piece, the connecting piece will not interfere with the expansion or closing of the isolation net 9.

[0034] In order to make the present invention safer when entering and exiting the human body and not causing damage to the human body, a guide head 8 is fixedly provided at the end of the connector of the end head assembly. The guide head 8 is a smooth hemispherical structure, and its smooth outer surface can contact the human body more smoothly without stabbing human tissue. One end of the elastic support ring 7 in this embodiment is hinged to the guide head 8, and the other end is hinged to the end of the outer sleeve 4 away from the release switch 1. The elastic support ring 7 is made of elastic materials such as memory alloy, can be bent well, and has a certain elastic recovery force.

[0035] There is no specific limitation on the connecting piece of the present embodiment, and a medical connecting line or connecting rope or the like may be used. The connecting piece of the present embodiment adopts a push rod 6. In the present embodiment, a handle 2 which is also hollow inside is fixedly provided at one end of the outer sleeve 4 of the control component located outside the human body, and an axial track 3 is provided on the side wall of the handle 2. The release switch 1 is sleeved on the handle 2, and a slider is provided on the inner wall of the release switch 1, and the slider is slidably arranged in the corresponding axial track 3, so that the release switch 1 can reciprocate along the axial track 3, and the push rod 6 is passed through the outer sleeve 4, and one end of the push rod 6 is fixedly connected to the release switch 1 after passing through the outer sleeve 4, so that when the release switch 1 moves reciprocatingly axially along the handle 2, it can drive the push rod 6 to move forward and backward synchronously, thereby realizing the opening or closing of the elastic support ring 7.

[0036] In order to achieve the positioning of the outer sleeve 4, a positioning plate 5 with a through hole is designed in one embodiment. The positioning plate 5 is sleeved on the outer sleeve 4. When one end of the outer sleeve 4 enters the tissue position in the human body, the positioning plate 5 is located outside the human body and fits the human epidermis to achieve the positioning of the outer sleeve 4. Further, a locking device 501 is fixed at one end of the positioning plate 5, and the other end is used to adhere to the human epidermis; a retractable cross groove 502 is provided in the locking device 501, and the center of the cross groove 502 is coaxial and connected with the through hole of the positioning plate 5, and the outer sleeve 4 passes through the cross groove 502 and the through hole in turn; the specific structure and locking method of the locking device 501 are not limited, and it can shrink the cross groove 502, and the cross groove 502 in the retracted state can lock the outer sleeve, so that the outer sleeve is fixed, and then the isolation net can hold up the human tissue. In one embodiment, a nut with a gradually decreasing inner diameter is disposed on the outer sleeve of the locking device 501. By screwing the nut toward one end of the positioning plate 5, the gradually decreasing inner diameter of the nut squeezes the cross groove 502 inward, thereby shrinking the cross groove 502. In another embodiment, a connecting ring is disposed on the outer ring of the locking device 501. The connecting ring is similar to a belt structure, with a belt buckle at one end and the other end passing through the belt buckle. The inner diameter of the connecting ring is adjusted by adjusting the length of the other end in the belt buckle, and then the cross groove 502 is shrunk by tightening the connecting ring, thereby locking and fixing the outer sleeve 4.

[0037] When the present invention is in use, one end of the outer tube 4 can enter the abdominal cavity percutaneously or through the internal channel of the puncture device, and the positioning plate 5 is fixed on the patient's epidermis or the puncture device to achieve the positioning of the outer tube 4; after the end assembly enters the abdominal cavity, the release switch 1 is manually operated to move backward, driving the push rod 6 to withdraw, thereby causing the elastic support ring 7 to bend, and the elastic support ring 7 and the isolation net 9 of the end assembly are formed into a net bag shape as a whole. The isolation net 9 on the elastic support ring 7 is in a relatively loose net bag state, which is used to support and block the tissue in the body. At this time, a locking block or locking pin or other structures can be set on the handle 2 to lock the position of the release assembly so that it no longer moves, thereby keeping the end assembly in an open state, isolating the tissue, and revealing the target surgical field. After the operation is completed, the release switch 1 is unlocked and pushed forward, and the push rod 6 moves forward to restore the elastic support ring 7 to a straight rod state, and the isolation net 9 shrinks, so that the present invention can be withdrawn from the abdominal cavity as a whole.

[0038] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An in vivo tissue isolation device, characterized in that: include: A control assembly having an outer sleeve with a hollow interior, one end of which is provided with a release switch, and the other end of which can enter the human body and be fixed at a set position; The end head assembly is movably connected to the end of the outer sleeve away from the release switch. The release switch can control the opening or closing of the end head assembly, and the end head assembly in the open state can isolate the body tissue from the surgical area.

2. The in vivo tissue isolation device according to claim 1, characterized in that: The end head assembly includes a connecting piece and an elastic support ring, wherein the connecting piece is parallel to the axis of the outer sleeve and has a length greater than that of the outer sleeve; one end of the connecting piece is connected to the release switch, and the other end of the connecting piece is connected to an end of the outer sleeve away from the release switch through the elastic support ring; the release switch can drive the elastic support ring to open or close through the connecting piece, and the elastic support ring is a smooth arc structure in the open state, and is a rod-shaped structure parallel to the axis of the outer sleeve in the closed state.

3. The in vivo tissue isolation device according to claim 2, characterized in that: The end head assembly includes two elastic support rings symmetrically arranged on both sides of the connecting piece; an isolation net is connected between the two elastic support rings; when the elastic support rings are in an open state, the isolation net is unfolded and located in a closed space between the two elastic support rings.

4. The in vivo tissue isolation device according to claim 2, characterized in that: The end head assembly includes two elastic support rings symmetrically arranged on both sides of the connecting piece; an isolation net is connected between the inner side of the elastic support ring and the connecting piece; when the elastic support ring is in an open state, the isolation net is unfolded and is located in a closed space between the elastic support ring and the connecting piece.

5. The in vivo tissue isolation device according to claim 2, characterized in that: The end head assembly also includes a smooth guide head, which is fixed to the end of the connecting member away from the release switch. One end of the elastic support ring is movably connected to the guide head, and the other end is movably connected to the end of the outer sleeve away from the release switch.

6. The in vivo tissue isolation device according to claim 5, characterized in that: The connecting piece is inserted into the outer sleeve, and the guide head is fixedly arranged on the end of the connecting piece away from the release switch after passing through the outer sleeve.

7. The in vivo tissue isolation device according to claim 2, characterized in that: The control assembly also includes a handle, which is fixedly connected to one end of the outer sleeve. An axial track is provided on the side wall of the handle. The release switch is sleeved on the handle and can reciprocate along the axial track.

8. The in vivo tissue isolation device according to claim 2, characterized in that: The connecting member is a push rod, which is inserted into the outer sleeve and has one end fixedly connected to the release switch.

9. The in vivo tissue isolation device according to claim 1, characterized in that: The control component also includes a positioning plate, which is sleeved on the outer sleeve. When one end of the outer sleeve enters the tissue position in the human body, the positioning plate is located outside the human body and fits against the human epidermis.

10. The in vivo tissue isolation device according to claim 9, characterized in that: A through hole is provided on the positioning disk, and a locking device is fixedly provided at one end of the positioning disk, and the other end of the positioning disk is used to adhere to the human epidermis; a cross groove is provided in the locking device which is coaxial with and connected to the through hole, and the locking device can drive the cross groove to contract and lock the outer sleeve.

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