Auxiliary device for puncture outfit

Abstract

The utility model relates to a puncture outfit auxiliary device which comprises a connecting sleeve, a supporting plate and a reinforcing plate, the connecting sleeve is arranged on a threaded section of a puncture cannula in a sleeved mode and is in interference fit with the outer wall of the puncture cannula, the supporting plate is fixedly connected to the bottom of the connecting sleeve, and the bottom face of the supporting plate is attached to the body surface. The center of the supporting plate is provided with a receding hole allowing the puncture cannula to penetrate through, the inner wall of the receding hole is flush with the inner wall of the connecting sleeve, the four corners of the supporting plate are provided with first positioning holes, the first positioning holes are fixed to body surface sutures through fixing pieces, the reinforcing plates are arranged on the top face of the supporting plate, and each reinforcing plate is provided with a second positioning hole. And the second positioning hole is fixed with a suture on the body surface through a fixing piece. The puncture outfit has the effect of reducing the possibility of secondary trauma to a patient in the use process of the puncture outfit.

Description

Technical Field

[0001] The utility model relates to the technical field of trocars, in particular to a trocar auxiliary device. Background Art

[0002] The trocar is a tool used in minimally invasive surgery. It can reduce the incisions during surgery, relieve the patient's postoperative pain, and ensure quick recovery, high safety, and minimal trauma.

[0003] During abdominal surgery, the doctor needs to use a puncture device to make a hole in the patient's abdominal cavity, inject gas into the abdominal cavity to keep a certain pressure in the abdominal cavity, and provide a surgical operating environment. The puncture device includes a puncture cannula, the bottom of the puncture cannula is provided with a puncture part, the top of the puncture cannula is provided with a gas injection part and an entrance for surgical instruments to enter, and a threaded section is provided on the outer peripheral wall in the middle of the puncture cannula. During the operation, the puncture cannula is inserted into the patient's abdomen through the puncture part, and then the surgical instruments are inserted into the abdominal cavity through the entrance of the puncture device for surgery.

[0004] During the examination or operation, the entry of surgical instruments will cause the puncture cannula to be stressed and tend to puncture downward, thus causing the risk of damaging tissue. There is also the risk of the puncture cannula being loose or falling off the puncture hole, delaying the progress of the operation and possibly causing secondary trauma to the patient, thus delaying the patient's recovery. Utility Model Content

[0005] In order to reduce the possibility of secondary trauma to the patient during the use of the trocar, the present application provides a trocar auxiliary device.

[0006] The present application provides a puncture auxiliary device adopting the following technical solution:

[0007] A puncture auxiliary device comprises a connecting sleeve, a support plate and a reinforcing plate, wherein the connecting sleeve is arranged on the threaded section of the puncture sleeve and has an interference fit with the outer wall of the puncture sleeve, the support plate is fixedly connected to the bottom of the connecting sleeve, the bottom surface of the support plate is in contact with the body surface, a clearance hole for the puncture sleeve to pass through is provided in the center of the support plate, the inner wall of the clearance hole is flush with the inner wall of the connecting sleeve, first positioning holes are provided at the four corners of the support plate, the first positioning holes are fixed to the body surface with sutures through fixing members, the reinforcing plate is arranged on the top surface of the support plate, each of the reinforcing plates is provided with a second positioning hole, and the second positioning hole is fixed to the body surface with sutures through fixing members.

[0008] By adopting the above technical solution, during the process of the puncture sleeve of the puncture device penetrating the abdominal cavity, the auxiliary device is forcibly moved to a suitable position according to the thickness of the patient's abdominal cavity, so that the bottom surface of the support plate of the auxiliary device fits with the body surface, and then the auxiliary device is fixed to the patient's body surface through the fixing piece. Since the connecting sleeve and the outer peripheral wall of the puncture sleeve are interference fit and are located on the threaded section, the friction between the connecting sleeve and the puncture sleeve is improved, the connection stability between the connecting sleeve and the puncture sleeve is improved, and the connecting sleeve and the puncture sleeve are not easily displaced, which reduces the possibility of secondary trauma to the patient during the use of the puncture device and improves the safety of the puncture device during use; the setting of the interference connection between the connecting sleeve and the puncture sleeve also enables the connecting sleeve and the puncture sleeve to adjust the position of the auxiliary device when an external force is manually applied, thereby improving the flexibility and adaptability of the auxiliary device.

[0009] Preferably, the support plate has a rectangular surface, and the connecting sleeve is located in the middle of the support plate in the length direction.

[0010] By adopting the above technical solution, compared with square, circular and triangular shapes, the first positioning holes can be opened by extending the connecting sleeves at both ends of the support plate to fix the auxiliary device to the body surface, thereby controlling the contact area between the auxiliary device and the body surface while achieving stable fixation of the auxiliary device.

[0011] Preferably, the reinforcing plate is arranged on the midline of the width direction of the supporting plate, the plate surface of the reinforcing plate is perpendicular to the plate surface of the supporting plate, and the reinforcing plates are symmetrically arranged on both sides of the radial direction of the connecting sleeve.

[0012] By adopting the above technical solution, the uniformity of the reinforcing force of the reinforcing plate on the auxiliary device structure is improved.

[0013] Preferably, the second positioning hole is located in the middle of the reinforcing plate surface, and the two first positioning holes at one end of the supporting plate in the length direction are coplanar with the adjacent second positioning holes.

[0014] By adopting the above technical solution, the second positioning hole is used in conjunction with the first positioning hole to improve the stability of the positioning and fixing of the auxiliary device.

[0015] Preferably, the sides of the two reinforcing plates that are close to each other are fixedly connected to the outer peripheral wall of the connecting sleeve, and the connection between each reinforcing plate and the connecting sleeve transitions into an arc-shaped surface.

[0016] By adopting the above technical solution, the reinforcing plate, the supporting plate and the connecting sleeve are all connected and fixed, thereby improving the overall structural strength of the auxiliary device.

[0017] Preferably, the four corners of the support plate and each side edge of the support plate are rounded.

[0018] By adopting the above technical solution, the possibility of accidental injury to patients and doctors due to sharp edges and corners of the auxiliary device during use is reduced.

[0019] Preferably, the top corners of the two reinforcing plates on the side away from each other and each side edge of the reinforcing plates are rounded.

[0020] By adopting the above technical solution, the possibility of accidental injury to patients and doctors due to sharp edges and corners of the auxiliary device during use is further reduced.

[0021] Preferably, the fixing member includes one or more of fixing sutures and fixing tapes;

[0022] When the fixing suture fixing auxiliary device is used alone, the fixing suture is sequentially passed through the first positioning hole on the left side, the second positioning hole, and the first positioning hole on the right side at each end of the support plate in the length direction, and the two ends of the fixing suture are tied to the suture on the body surface;

[0023] When the fixing tape is used alone to fix the support plate, the fixing tape passes through the first positioning hole on the left side, the second positioning hole, and the first positioning hole on the right side at each end of the support plate in the length direction in sequence, and the two ends of the fixing tape are bonded to the sutures on the body surface, and the middle section of the fixing tape is bonded to the top surface of the support plate and both sides of the reinforcing plate in the thickness direction;

[0024] When the fixing suture and the fixing tape are used to fix the support plate at the same time, the fixing suture is first passed through the first left positioning hole, the second positioning hole, and the first positioning hole on the right side at each end of the support plate in the length direction in sequence, and the two ends of the fixing suture are tied with the sutures on the body surface. Then, the fixing tape is passed through the first left positioning hole, the second positioning hole, and the first positioning hole on the right side at each end of the support plate in the length direction in sequence, and the two ends of the fixing tape are bonded with the sutures on the body surface. The middle section of the fixing tape is bonded to the top surface of the support plate and both sides of the reinforcing plate in the thickness direction. The fixing tape is located on the side of the fixing suture away from the body surface. The fixing tape covers the fixing suture and bonds the fixing suture to the body surface.

[0025] By adopting the above technical solution, the fixing part and the fixing method can be selected according to the range of universal swing of the puncture cannula required during the operation, thereby improving the flexibility and adaptability of the auxiliary device.

[0026] Preferably, both ends of each first positioning hole in the axial direction are provided with a first guide surface, the first guide surface is inclined in a direction away from the axial center of the first positioning hole toward the direction away from the central axis of the first positioning hole, and the connection between the first guide surface and the inner wall of the first positioning hole is arranged in an arc;

[0027] Each of the second positioning holes is provided with a second guide surface at both axial ends, the second guide surface is inclined in a direction away from the axial center of the second positioning hole, and the connection between the second guide surface and the inner wall of the second positioning hole is arranged in an arc.

[0028] By adopting the above technical solution, the wear on the fixing part is reduced and the possibility of the fixing part breaking is reduced.

[0029] Preferably, the connecting sleeve, the supporting plate and the reinforcing plate are integrally formed and are all made of silicone.

[0030] By adopting the above technical solution, an interference connection between the connecting sleeve and the puncture sleeve is achieved, and the upper and lower positions of the auxiliary device can be adjusted according to the thickness of the patient's abdominal cavity.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The connection stability between the connecting sleeve and the puncture cannula is improved, and displacement between the connecting sleeve and the puncture cannula is not easy to occur, which reduces the possibility of secondary trauma to the patient during the use of the puncture device and improves the safety during the use of the puncture device;

[0033] 2. The supporting plate, connecting sleeve and supporting plate of the auxiliary device are all made of silicone, which realizes the interference connection between the auxiliary device and the puncture cannula. The auxiliary device can be adjusted up and down according to the patient's abdominal cavity thickness, which improves the flexibility and adaptability of the auxiliary device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of a puncture auxiliary device and a puncture cannula in the embodiment of the present application.

[0035] Figure 2 It is a schematic diagram used to show the positional relationship between the fixing suture and the first positioning hole and the second positioning hole in the embodiment of the present application.

[0036] Figure 3 It is a schematic diagram used to show the positional relationship between the fixing tape and the first positioning hole and the second positioning hole in the embodiment of the present application.

[0037] Explanation of the accompanying drawings: 1. puncture sleeve; 2. connecting sleeve; 3. support plate; 31. clearance hole; 32. first positioning hole; 321. first guide surface; 4. reinforcement plate; 41. second positioning hole; 411. second guide surface; 51. fixing suture; 52. fixing tape. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-3 This application is described in further detail.

[0039] The embodiment of the present application discloses a puncture auxiliary device.

[0040] Reference Figure 1-3 The puncture auxiliary device includes a connecting sleeve 2, a support plate 3 and a reinforcing plate 4. The connecting sleeve 2 is sleeved on the threaded section of the puncture sleeve 1 and has an interference fit with the outer wall of the puncture sleeve 1. The inner diameter of the connecting sleeve 2 is smaller than the outer diameter of the puncture sleeve 1. The supporting plate 3 is fixedly connected to the bottom of the connecting sleeve 2. The bottom surface of the supporting plate 3 fits the body surface. A clearance hole 31 for the puncture sleeve 1 to pass through is opened in the center of the supporting plate 3. The inner wall of the clearance hole 31 is flush with the inner wall of the connecting sleeve 2. The four corners of the supporting plate 3 are opened with first positioning holes 32, and the first positioning holes 32 are fixed to the body surface with sutures through a fixing piece. The reinforcing plate 4 is fixedly connected to the top surface of the supporting plate 3. Each reinforcing plate 4 is opened with a second positioning hole 41, and the second positioning hole 41 is fixed to the body surface with sutures through a fixing piece.

[0041] The second positioning hole 41 is located in the middle of the reinforcing plate 4, and the two first positioning holes 32 at one end of the supporting plate 3 in the length direction are coplanar with the adjacent second positioning holes 41. The second positioning holes 41 cooperate with the first positioning holes 32 to improve the stability of the auxiliary device positioning and fixing.

[0042] The connecting sleeve 2, the supporting plate 3 and the reinforcing plate 4 are integrally formed and are all made of silicone, thus achieving an interference fit between the connecting sleeve 2 and the puncture cannula 1, and the auxiliary device can be adjusted up and down according to the thickness of the patient's abdominal cavity.

[0043] During the process of the puncture sleeve 1 of the puncture device penetrating the abdominal cavity, the auxiliary device is moved to a suitable position according to the thickness of the patient's abdominal cavity, so that the bottom surface of the support plate 3 of the auxiliary device fits with the body surface, and then the auxiliary device is fixed to the patient's body surface through a fixing piece. Since the connecting sleeve 2 and the outer peripheral wall of the puncture sleeve 1 are interference fit and are located on the threaded section, the friction between the connecting sleeve 2 and the puncture sleeve 1 is increased, and the connection stability between the connecting sleeve 2 and the puncture sleeve 1 is improved. The connecting sleeve 2 and the puncture sleeve 1 are not easily displaced, which reduces the possibility of secondary trauma to the patient during the use of the puncture device and improves the safety of the puncture device during use; the setting of the interference connection between the connecting sleeve 2 and the puncture sleeve 1 also enables the connecting sleeve 2 and the puncture sleeve 1 to adjust the position of the auxiliary device when an external force is manually applied, thereby improving the flexibility and adaptability of the auxiliary device.

[0044] The surface of the support plate 3 is rectangular, and the connecting sleeve 2 is located in the middle of the length direction of the support plate 3. Compared with square, circular, and triangular shapes, the two ends of the support plate 3 extend out of the connecting sleeve 2 to open the first positioning hole 32 so that the auxiliary device can be fixed to the body surface, and the contact area between the auxiliary device and the body surface is controlled under the premise of achieving stable fixation of the auxiliary device.

[0045] The reinforcing plate 4 is arranged on the center line of the support plate 3 in the width direction, the plate surface of the reinforcing plate 4 is perpendicular to the plate surface of the support plate 3, and the reinforcing plate 4 is symmetrically arranged on both sides of the radial direction of the connecting sleeve 2, thereby improving the uniformity of the reinforcing force of the reinforcing plate 4 on the auxiliary device structure.

[0046] The sides of the two reinforcing plates 4 that are close to each other are fixedly connected to the outer peripheral wall of the connecting sleeve 2, and the transition between the connection between each reinforcing plate 4 and the connecting sleeve 2 is an arc-shaped surface. The ends of the reinforcing plates 4 that are far away from each other are flush with the two ends of the support plate 3 in the length direction, and the top surface of the reinforcing plate 4 is flush with the top surface of the connecting sleeve 2. The reinforcing plates 4, the support plates 3, and the connecting sleeve 2 are all connected and fixed, which improves the overall structural strength of the auxiliary device.

[0047] In order to reduce the possibility of accidental injury to patients and doctors due to sharp edges of the auxiliary device during use, the four corners of the support plate 3 and each side of the support plate 3 are rounded, and the top corners of the two reinforcing plates 4 away from each other and each side of the reinforcing plates 4 are rounded.

[0048] The fixing member includes one or more of a fixing suture 51 and a fixing tape 52 .

[0049] When the fixing suture 51 is used alone to fix the auxiliary device, the fixing suture 51 passes through the first left positioning hole 32, the second positioning hole 41, and the first positioning hole 32 on the right side at each end of the support plate 3 in the length direction in sequence, and the two ends of the fixing suture 51 are tied to the sutures on the body surface.

[0050] When the fixing tape 52 is used alone to fix the support plate 3, the fixing tape 52 passes through the first positioning hole 32 on the left side, the second positioning hole 41, and the first positioning hole 32 on the right side at each end of the support plate 3 in the length direction in sequence, and the two ends of the fixing tape 52 are bonded to the sutures on the body surface, and the middle section of the fixing tape 52 is bonded to the top surface of the support plate 3 and both sides of the reinforcing plate 4 in the thickness direction.

[0051] When the fixing suture 51 and the fixing tape 52 are used to fix the support plate 3 at the same time, the fixing suture 51 is first passed through the first left positioning hole 32, the second positioning hole 41, and the first positioning hole 32 on the right side at each end of the support plate 3 in the length direction in turn, and the two ends of the fixing suture 51 are tied with the sutures on the body surface. Then, the fixing tape 52 is passed through the first left positioning hole 32, the second positioning hole 41, and the first positioning hole 32 on the right side at each end of the support plate 3 in the length direction in turn, and the two ends of the fixing tape 52 are bonded with the sutures on the body surface, and the middle section of the fixing tape 52 is bonded to the top surface of the support plate 3 and both sides of the reinforcing plate 4 in the thickness direction. The fixing tape 52 is located on the side of the fixing suture 51 away from the body surface, and the fixing tape 52 covers the fixing suture 51 and bonds the fixing suture 51 to the body surface.

[0052] The fixing part and the fixing method can be selected according to the range of universal swing of the puncture sleeve 1 required during the operation, thereby improving the flexibility and adaptability of the auxiliary device.

[0053] In order to reduce the wear on the fixing parts and reduce the possibility of the fixing parts breaking, a first guide surface 321 is provided at both ends of the axial direction of each first positioning hole 32, and the side of the first guide surface 321 away from the axial center of the first positioning hole 32 is inclined in the direction away from the central axis of the first positioning hole 32, and the connection between the first guide surface 321 and the inner wall of the first positioning hole 32 is set in an arc. A second guide surface 411 is provided at both ends of the axial direction of each second positioning hole 41, and the side of the second guide surface 411 away from the axial center of the second positioning hole 41 is inclined in the direction away from the central axis of the second positioning hole 41, and the connection between the second guide surface 411 and the inner wall of the second positioning hole 41 is set in an arc.

[0054] The implementation principle of a puncture auxiliary device in the embodiment of the present application is:

[0055] During the process of the puncture cannula 1 of the puncture device penetrating the abdominal cavity, the auxiliary device is moved to a suitable position according to the thickness of the patient's abdominal cavity, so that the bottom surface of the support plate 3 of the auxiliary device fits the body surface, and then the auxiliary device is fixed to the patient's body surface through a fixing device to assist the puncture device in stabilizing.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A trocar assisting device, characterized in that: include: A connecting sleeve (2), the connecting sleeve (2) being sleeved on the threaded section of the puncture sleeve (1) and having an interference fit with the outer wall of the puncture sleeve (1); A support plate (3), the support plate (3) is fixedly connected to the bottom of the connecting sleeve (2), the bottom surface of the support plate (3) is in contact with the body surface, a clearance hole (31) is provided at the center of the support plate (3) for the puncture sleeve (1) to pass through, the inner wall of the clearance hole (31) is flush with the inner wall of the connecting sleeve (2), and first positioning holes (32) are provided at the four corners of the support plate (3), and the first positioning holes (32) are fixed to the body surface through sutures via fixing members; A reinforcing plate (4), wherein the reinforcing plate (4) is arranged on the top surface of the supporting plate (3), each reinforcing plate (4) is provided with a second positioning hole (41), and the second positioning hole (41) is fixed to the body surface by a fixing piece and a suture.

2. A trocar assisting device according to claim 1, characterized in that: The surface of the support plate (3) is rectangular, and the connecting sleeve (2) is located in the middle of the support plate (3) in the length direction.

3. A trocar assisting device according to claim 2, characterized in that: The reinforcing plate (4) is arranged on the midline of the width direction of the supporting plate (3), the plate surface of the reinforcing plate (4) is perpendicular to the plate surface of the supporting plate (3), and the reinforcing plate (4) is symmetrically arranged on both sides of the connecting sleeve (2) in the radial direction.

4. A trocar assisting device according to claim 1, characterized in that: The second positioning hole (41) is located in the middle of the plate surface of the reinforcing plate (4), and the two first positioning holes (32) at one end of the supporting plate (3) in the length direction and the adjacent second positioning holes (41) are coplanar.

5. A trocar assisting device according to claim 1, characterized in that: The sides of the two reinforcing plates (4) that are close to each other are fixedly connected to the outer peripheral wall of the connecting sleeve (2), and the connection between each reinforcing plate (4) and the connecting sleeve (2) is transitioned into an arc-shaped surface.

6. A trocar assisting device according to claim 1, characterized in that: The four corners of the support plate (3) and each side edge of the support plate (3) are all rounded.

7. A trocar assisting device according to claim 1, characterized in that: The top corners of the two reinforcing plates (4) that are away from each other and each side edge of the reinforcing plates (4) are arranged in a rounded shape.

8. A trocar assisting device according to claim 4, characterized in that: The fixing member comprises one or more of a fixing suture (51) and a fixing adhesive tape (52); When the fixing suture (51) is used alone to fix the auxiliary device, the fixing suture (51) is sequentially passed through the first positioning hole (32) on the left side, the second positioning hole (41), and the first positioning hole (32) on the right side at each end of the support plate (3) in the length direction, and the two ends of the fixing suture (51) are tied to the suture on the body surface; When the fixing tape (52) is used alone to fix the support plate (3), the fixing tape (52) passes through the first positioning hole (32) on the left side, the second positioning hole (41), and the first positioning hole (32) on the right side at each end of the support plate (3) in the length direction in sequence, and the two ends of the fixing tape (52) are bonded to the sutures on the body surface, and the middle section of the fixing tape (52) is bonded to the top surface of the support plate (3) and both sides of the reinforcing plate (4) in the thickness direction; When the fixing suture (51) and the fixing tape (52) are used to fix the support plate (3) at the same time, the fixing suture (51) is firstly passed through the first positioning hole (32), the second positioning hole (41) and the first positioning hole (32) on the left side of each end of the support plate (3) in the length direction in sequence, and the two ends of the fixing suture (51) are tied to the suture on the body surface. Then, the fixing tape (52) is passed through the first positioning hole (32), the second positioning hole (41) and the first positioning hole (32) on the right side of each end of the support plate (3) in the length direction in sequence, and the two ends of the fixing tape (52) are bonded to the suture on the body surface. The middle section of the fixing tape (52) is bonded to the top surface of the support plate (3) and both sides of the reinforcing plate (4) in the thickness direction. The fixing tape (52) is located on the side of the fixing suture (51) away from the body surface. The fixing tape (52) covers the fixing suture (51) and bonds the fixing suture (51) to the body surface.

9. A trocar assisting device according to claim 1, characterized in that: Each of the first positioning holes (32) is provided with a first guide surface (321) at both axial ends, the first guide surface (321) being inclined in a direction away from the axial center of the first positioning hole (32) in a direction away from the central axis of the first positioning hole (32), and the connection between the first guide surface (321) and the inner wall of the first positioning hole (32) being arranged in a circular arc; Each of the second positioning holes (41) is provided with a second guide surface (411) at both axial ends; the side of the second guide surface (411) away from the axial center of the second positioning hole (41) is inclined in a direction away from the central axis of the second positioning hole (41); and the connection between the second guide surface (411) and the inner wall of the second positioning hole (41) is arranged in the form of an arc.

10. A trocar assisting device according to claim 1, characterized in that: The connecting sleeve (2), the supporting plate (3) and the reinforcing plate (4) are integrally formed and are all made of silicone.

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