Cleaner for puncture outfit cannula and using method of cleaner

Abstract

The invention discloses a cleaner for a puncture outfit cannula and a using method of the cleaner. The periphery of a rod body of the cleaner is wrapped with a cleaning material, and a blocking part is arranged at the end, penetrating into the puncture outfit cannula, of the rod body so as to block an annular gap between the end of the rod body and the puncture outfit cannula; and fragments generated by cracking of the cleaning material are prevented from falling into the human body through the annular gap, and the surgical risk is reduced. In order to enable the blocking part to be conveniently matched with puncture outfit cannulas with different inner diameters so as to enlarge the application range of the cleaner, the blocking part can change the size in the radial direction of the rod body so as to be matched with the inner wall of the puncture outfit cannulas, and a driving part for driving the blocking part to change the size in the radial direction of the rod body is arranged according to needs. And meanwhile, the blocking part axially limits the cleaning material on the rod body, so that the cleaning material is prevented from integrally falling off from the rod body during reciprocating motion.

Description

Technical Field

[0001] The invention relates to the technical field of medical surgical instruments, and in particular to a cleaner for a puncture cannula. Background Art

[0002] During laparoscopic surgery, doctors use trocars as channels for surgical instruments and video equipment. The use of trocars improves the flexibility and safety of surgery, but during surgery, due to repeated insertion and removal of surgical instruments and video equipment, the trocar cannula tends to accumulate blood, tissue fragments, and other biological substances, which not only affects the clarity of the surgical field of view, but also increases the risk of surgical infection. Therefore, keeping the trocar cannula clean is crucial to improving surgical efficiency and patient safety.

[0003] Some existing puncture tubes wrap the cleaning material on the rod body, and the rod body carries the cleaning material to reciprocate in the puncture tube for cleaning. Compared with the method of using pliers to clamp the gauze block to clean the inner wall of the tube, the operation is convenient, but there are still some technical problems. For example, the medical sponge used as a cleaning material is easily cracked due to the friction of the tube wall during reciprocating motion, and the fragments produced by the cracking pose a surgical risk of falling into the human body, which needs to be improved. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a cleaner for a trocar sleeve, which protects the cleaning material by optimizing the structure of the cleaner to prevent the fragments of the cleaning material from falling into the human body.

[0005] In order to achieve the above-mentioned purpose, the cleaner of the puncture sleeve of the present invention comprises a rod body and a cleaning material, wherein the cleaning material is coated on the rod body, and the cleaning material is carried by the rod body to reciprocate in the puncture sleeve, and the cleaning material cleans the inner wall of the sleeve during the reciprocating motion. In order to prevent the cleaning material from breaking and falling into the human body when the cleaning material breaks during the reciprocating motion, a blocking part is provided at the end of the rod body extending into the puncture sleeve, and the blocking part abuts against the inner wall of the puncture sleeve to block the annular gap between the end of the rod body and the puncture sleeve, so that the cleaning material is in the bottom closed annular space formed by the rod body and the puncture sleeve, and the fragments generated by the cracking of the cleaning material are prevented from escaping from the above annular space and falling into the human body.

[0006] The blocking portion at the end of the rod body abuts against the end surface of the cleaning material at the same time, axially limiting the cleaning material on the rod body, increasing the connection strength between the two, and preventing the cleaning material from falling off the rod body as a whole during reciprocating motion.

[0007] In order to enable the cleaner to adapt to puncture tubes with different inner diameters, preferably, the size of the blocking portion along the radial direction of the rod body can be changed to adapt to the inner wall of the puncture tube; the blocking portion includes an elastic material, which relies on its own deformation to adapt to puncture tubes with different inner diameters, or is filled with fluid to shrink and expand in the radial direction; or, the blocking portion is composed of a plurality of components, and the plurality of components can move relative to each other to form a shape adapted thereto by adjusting the relative positions according to the size of the annular gap.

[0008] According to needs, a driving part is arranged in the rod body to drive the blocking part to change the size radially along the rod body. The transmission structure of the driving part includes fluid or non-fluid, the fluid transmission structure includes pneumatic or hydraulic, and the driving source of the driving part can be electric or manual.

[0009] Another object of the present invention is to disclose a method for using the cleaner of the trocar sleeve, comprising the following steps: S1. Insert the cleaner into the trocar sleeve; S2. The blocking portion at the end of the cleaner is pressed against the inner wall of the trocar sleeve; S3. Push and pull the cleaner back and forth in the trocar sleeve, and the cleaning material on the cleaner cleans the inner wall of the trocar sleeve.

[0010] The present invention provides a blocking portion at the end of the rod body that penetrates into the puncture tube to block the annular gap between the end of the rod body and the puncture tube, effectively preventing the fragments generated by the cracking of the cleaning material from falling into the human body through the annular gap, thereby reducing the risk of surgery. In addition, in order to facilitate the blocking portion to adapt to puncture tubes of different inner diameters to increase the application range of the cleaner, the blocking portion is designed to be able to change the size along the radial direction of the rod body to adapt to the inner wall of the puncture tube, and a driving portion that drives the blocking portion is provided as needed. At the same time, the blocking portion axially limits the cleaning material on the rod body to prevent the cleaning material from falling off the rod body as a whole during reciprocating motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the cleaning device of the first embodiment.

[0012] Figure 2 It is a structural diagram of the blocking part.

[0013] Figure 3 It is a structural diagram of the rod body of the second embodiment.

[0014] Figure 4 This is a structural diagram of the drive unit.

[0015] Figure 5 It is a structural diagram of the cleaner of Example 2 without the end plate.

[0016] Figure 6It is the structural diagram of the other side of the cleaning device of the second embodiment.

[0017] Figure 7 This is the structural diagram of the end plate.

[0018] Figure 8 It is an overall cross-sectional view of the cleaner.

[0019] Fig. 9 It is a structural diagram of the cleaning device of embodiment 3.

[0020] Figure markings: 1-rod body, 2-cleaning material, 3-blocking part, 4-blocking plate, 5-elastic ring, 6-groove, 7-embedded groove, 8-partition wall, 9-second groove, 10-driving rod, 11-cam, 12-torsion spring, 13-knob, 14-end cover, 15-countersunk hole, 16-threaded hole, 17-guide groove, 18-guide column, 19-baffle, 20-elastic constraint net. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0022] Embodiment 1

[0023] See attached Figure 1-2 , discloses a cleaner for a puncture sleeve, comprising a rod body 1 and a cleaning material 2, wherein the cleaning material 2 is wrapped on the rod body 1, and the rod body 1 carries the cleaning material 2 to reciprocate in the puncture sleeve, and the cleaning material 2 cleans the inner wall of the sleeve during the reciprocating motion. A blocking portion 3 is provided at the end of the rod body 1 that penetrates into the puncture sleeve, and the peripheral wall of the blocking portion 3 abuts against the inner wall of the puncture sleeve, thereby blocking the annular gap between the end of the rod body 1 and the puncture sleeve, and preventing the fragments generated by the cracking of the cleaning material 2 from falling into the human body through the above annular gap. At the same time, the blocking portion 3 abuts against the end face of the cleaning material 2, and axially limits the cleaning material 2 on the rod body 1, thereby preventing the cleaning material 2 from falling off the rod body 1 as a whole during the reciprocating motion.

[0024] like Figure 1As shown, the blocking portion 3 is composed of a plurality of components, including a plurality of baffles 4 and an elastic ring 5, wherein the plurality of baffles 4 are arranged in an annular manner around the axis of the rod body 1 on the end of the rod body 1, a groove 6 is provided on the peripheral wall of the baffle 4, and the elastic ring 5 is embedded in the groove 6, and the groove 6 limits the elastic ring 5 to prevent the elastic ring 5 from escaping from the peripheral wall of the baffle 4. At the same time, the elastic ring 5 fills the gap between the baffles 4 to prevent the fragments of the cleaning material 2 from falling into the human body through the above-mentioned gap. Under the action of the driving part, the plurality of baffles 4 can move in the radial direction of the rod body 1, and the peripheral wall of the driving piece 4 and the elastic ring 5 abut against the inner wall of the puncture sleeve to block the annular gap between the end of the rod body 1 and the puncture sleeve.

[0025] For the installation structure of multiple baffles 4 at the end of the rod body 1, preferably, as Figure 1 As shown, a plurality of embedding grooves 7 are provided at the end of the rod body 1, a plurality of baffles 4 are respectively installed in the embedding grooves 7, and a partition wall 8 is provided between the embedding grooves 7. In order to facilitate the installation of the elastic ring 5, preferably, a second groove 9 is provided on the peripheral wall of the partition wall 8 for the elastic ring 5 to be embedded. Preferably, when the baffle 4 moves radially, there is no gap between the elastic ring 5 and the partition wall 8 in the radial direction of the rod body 1, and at least part of the elastic ring 5 is always embedded in the second groove 9.

[0026] A driving part (not shown) is provided at the bottom of the embedding groove 7, and the driving part drives the baffle 4 to move radially along the rod body 1. The driving part can be selected from electric push rods, hydraulic rods, elastic parts or cam components, as long as it can drive the baffle 4 to move radially.

[0027] Embodiment 2

[0028] The second embodiment discloses a structure of a driving part, and other structures are the same as those of the first embodiment, such as Figure 3-9 As shown, the rod body 1 is hollow, and a driving part is arranged inside the rod body 1, and the driving part can rotate relative to the rod body 1; an end cap 14 is arranged at the end of the rod body 1 extending into the puncture sleeve, which is used to cover the baffle 4 and the driving part; the driving part includes a driving rod 10, a cam 11 and a torsion spring 12, the cam 11 is located at the bottom of the embedding groove 7, abuts against the baffle 4, and has convex peaks and concave valleys on the cam 11; the driving rod 10 is located at one end of the cam 11, and penetrates the rod body 1 and extends from the other end; at the other end of the rod body 1 A torsion spring 12 is provided between the end portion and the driving rod 10, and a clamping groove is provided on the end surface of the rod body 1 and the driving rod 10 respectively, and the two legs of the torsion spring 12 are respectively clamped in the clamping groove, and the torsion spring 12 drives the driving rod 10 to drive the cam 11 to rotate, and the convex peak on the cam 11 abuts against the baffle 4, driving the baffle 4 to move radially outward along the rod body 1; wherein the radial distance between the apex of the convex peak and the bottom of the concave valley is designed to be greater than the radial width of the above-mentioned annular gap to ensure that the cam 11 abuts the baffle 4 against the inner wall of the puncture device sleeve.

[0029] To facilitate the screwing of the driving part, preferably, a knob 13 is provided at the end of the driving rod 10, and a baffle 19 is provided at the end of the rod body 1. When using a cleaner to clean the trocar sleeve: First, hold the knob 13 and the baffle 19 with both hands respectively, and turn the knob 13 relative to the rod body 1 so that the valley on the cam 11 abuts against the baffle 4, and the torsion spring 12 accumulates enough to resist the radially inward force applied by the elastic ring 5 to the baffle 4, driving the cam 11 to push the baffle 4 to move radially outward along the rod body 1; secondly, extend the cleaner into the puncture device sleeve; then, release the knob 13, the torsion spring 12 drives the driving rod 10 to drive the cam 11 to rotate, the convex peak on the cam 11 abuts against the baffle 4, driving the baffle 4 to abut against the inner wall of the puncture device sleeve radially outward along the rod body 1, and the annular gap between the end of the rod body 1 and the puncture device sleeve is blocked; finally, pinch the baffle 19 to push and pull the rod body 1 back and forth, and the rod body 1 carries the cleaning material 2 to clean the inner wall of the puncture device sleeve.

[0030] like Figure 7-8 As shown, a countersunk hole 15 is provided on the end cover 14, and two threaded holes 16 are provided on the end surface of the rod body 1. The end cover 14 is fixed to the end surface of the rod body 1 by fasteners (not shown, such as bolts and screws). Preferably, the threaded holes 16 are provided on the groove wall of the embedding groove 7, and a guide groove 17 is provided on the corresponding baffle 4 for the fastener to pass through, and the fastener guides the baffle 4. Preferably, guide grooves 17 are also provided on other baffles 4, and guide columns 18 are provided on the end cover 14 corresponding to them.

[0031] Embodiment 3

[0032] Embodiment 3 discloses a cleaner for a trocar sleeve, such as Fig. 9 As shown, the other structures are the same as those of the first embodiment, except that the cleaning material 2 is wrapped with an elastic restraint net 20, and the material of the elastic restraint net 20 is selected from metals, such as nickel-titanium alloy, cobalt-chromium alloy, gold-cadmium alloy or copper-zinc alloy; or plastics, such as polyurethane or polyamide; or latex or silicone; and the elastic restraint net 20 is woven from the above materials. The elastic restraint net 20 increases the overall strength of the cleaning material 2 and reduces the risk of the cleaning material 2 breaking during the cleaning process.

[0033] The above describes in detail the basic principles, main features and advantages of the present invention in the field under investigation, and describes in detail some examples of use. Finally, it should be noted that the examples cited above are only used to explain this patent and are not used to limit the present invention. Although we have described the present invention in detail with reference to the examples, technicians in this field can still modify the examples and schemes described, or replace the relevant technical parts. Therefore, any modifications and equivalent replacements made within the spirit and principles of the present invention are within the scope of protection of the claims of the patent of this invention.

Claims

1. A cleaner for a trocar sleeve, characterized in that: It comprises a rod body and a cleaning material, wherein the cleaning material is coated on the rod body; a blocking part is arranged at the end of the rod body extending into the puncture tube, and the peripheral wall of the blocking part abuts against the inner wall of the puncture tube to seal the annular gap between the end of the rod body and the puncture tube.

2. A trocar cannula cleaner according to claim 1, characterized in that: The blocking portion can change its size along the radial direction of the rod body.

3. A cleaner for a trocar sleeve as claimed in claim 2, characterized in that: The barrier portion includes an elastic material.

4. A cleaner for a trocar sleeve as claimed in claim 2, characterized in that: The blocking portion is composed of a plurality of components, and the plurality of components can move relative to each other so as to form a shape adapted to the annular gap by adjusting relative positions according to the size of the annular gap.

5. A cleaner for a trocar sleeve as claimed in claim 3 or 4, characterized in that: The cleaner further comprises a driving part, which is disposed in the rod body and drives the blocking part to change its size along the radial direction of the rod body.

6. A cleaner for a trocar sleeve as claimed in claim 5, characterized in that: The blocking portion includes a plurality of blocking pieces and an elastic ring, wherein the plurality of blocking pieces are arranged in a ring around the axis of the rod body in an embedding groove at the end of the rod body, and a groove is provided on the peripheral wall of the blocking piece, and the elastic ring is embedded in the groove; the driving portion is arranged at the bottom of the embedding groove to drive the blocking piece to move radially along the rod body.

7. A cleaner for a trocar sleeve as claimed in claim 6, characterized in that: The driving part includes a driving rod, a cam and a torsion spring, wherein the cam is located at the bottom of the embedding groove and abuts against the baffle; the cam is provided with peaks and valleys; the driving rod is located at one end of the cam, passes through the rod body and extends out from the other end of the rod body; the torsion spring is provided between the other end of the rod body and the driving rod; the torsion spring drives the driving rod to drive the cam to rotate, and the peak on the cam abuts against the baffle, driving the baffle to move radially outward along the rod body; the radial distance between the apex of the peak and the bottom of the valley is greater than the radial width of the annular gap.

8. A cleaner for a trocar sleeve as claimed in claim 6, characterized in that: The cleaner also includes an end cover, a countersunk hole is provided on the end cover, a threaded hole is provided on the end surface of the rod body, and a fastener passes through the countersunk hole and is screwed into the threaded hole.

9. A cleaner for a trocar sleeve as claimed in claim 8, characterized in that: The threaded hole is arranged on the groove wall of the embedding groove, the end cover is provided with a guide column, and the baffle is provided with a guide groove for the fastener or the guide column to pass through.

10. A method for using a cleaner for a trocar sleeve, using the cleaner according to any one of claims 1 to 9, comprising the following steps: S1. Insert the cleaner into the trocar cannula; S2. The blocking portion at the end of the cleaner is pressed against the inner wall of the trocar sleeve; S3. Push and pull the cleaner back and forth in the trocar sleeve, and the cleaning material on the cleaner cleans the inner wall of the trocar sleeve.

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