Balloon puncture outfit

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a balloon puncture outfit. The utility model provides a balloon puncture outfit which aims at solving the problem that in the prior art, a fixing seat of a balloon puncture outfit is mostly locked through a lock catch structure, and efficiency is low when the fixing position is repeatedly debugged, and comprises a puncture needle rod, a puncture outfit sleeve assembly arranged outside the puncture needle rod in a sleeving mode and a balloon. The utility model has the innovation points that the locking and fixing component connected outside the puncture outfit cannula component has a recoverable hooping force on the outer wall of the puncture outfit cannula component, the locking force can disappear under the action of external force, and the hooping force can be automatically recovered when the external force disappears, so that the puncture outfit cannula component can be locked and fixed, and the puncture outfit cannula component can be locked and fixed. In this way, instant locking and releasing can be achieved conveniently, and the adjusting efficiency of the fixing base is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and in particular relates to a balloon puncture device. Background Technology

[0002] Balloon trocars utilize a balloon cannula with a balloon attached to the outside of the trocar cannula. Once the trocar enters the patient's abdominal cavity, the balloon inflates to stabilize the abdominal wall. Correspondingly, a corresponding fixation device is also installed on the outer wall of the abdominal cavity, working in conjunction with the balloon to clamp and stabilize the patient's abdominal wall. The fixation device on the outer wall of the abdominal cavity is typically locked using a locking mechanism; if the initial adjustment is incorrect, it needs to be unlocked and re-locked, which reduces efficiency.

[0003] For example, a Chinese utility model patent application discloses a balloon puncture device with a suture-holding device [Application No.: 202211478068.1]. This utility model is a balloon puncture device with a suture-holding device. It solves the problem of poor sealing of the fixation device in existing balloon puncture devices. It includes a puncture needle, a condensate gas conduit sleeve circumferentially outside the puncture needle, a puncture cannula circumferentially outside the condensate gas conduit, an annular balloon communicating with the inner cavity of the puncture cannula at the lower end of the puncture cannula, a gas duct at the lower end of the conduit seat, a condensate gas exhaust pipe on the conduit seat, a fixation seat that can move axially on the puncture cannula, a locking structure at the upper end of the fixation seat for positioning the fixation seat, a suture-holding device for holding the suture in the outer circumferential direction of the locking structure, and symmetrically arranged folding clamping mechanisms for pressing the suture in the outer circumferential direction of the fixation seat. A telescopic clamping component is provided at the bottom of the fixation seat. The advantages of this invention are: convenient operation and good sealing performance.

[0004] Although this utility model adds a suture clamping device to the locking device to facilitate doctors suturing wounds, it still uses a traditional locking structure to lock the fixation seat. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a balloon puncture device that improves locking and adjustment efficiency by incorporating a locking and fixing component that can automatically restore clamping force.

[0006] This utility model includes a puncture needle shaft, a puncture device cannula assembly sleeved outside the puncture needle shaft, and a balloon. The balloon is fixedly connected to the outer wall of the puncture device cannula assembly. This utility model also includes a locking and fixing assembly connected to the outside of the puncture device cannula assembly. The locking and fixing assembly is farther away from the puncture part of the puncture needle shaft than the balloon. The locking and fixing assembly has a returnable clamping force on the outer wall of the puncture device cannula assembly. The locking force disappears under the action of external force and automatically returns to the clamping force when the external force disappears.

[0007] Preferably, the locking and fixing assembly includes a torsion spring, the inner diameter of the main body of the torsion spring being smaller than the outer diameter of the trocar cannula assembly and being wound around the outer wall of the trocar cannula assembly.

[0008] Preferably, the locking and fixing assembly further includes a locking base and a fixing base, wherein the locking base is fixedly connected to the fixing base, and the end of the torsion spring is embedded in the locking base and clamped.

[0009] Preferably, the locking base includes at least one horizontally extending groove and at least one torsion spring passing through the groove.

[0010] Preferably, to facilitate the operation of the torsion spring, the present invention further includes at least one handle, wherein the handle is fixedly connected to the end of the torsion spring that extends through the slide groove.

[0011] Preferably, the locking base includes a left locking base and a right locking base that are interlocked.

[0012] Preferably, the locking base includes a base, and the fixing seat is an elastic component nested within the base.

[0013] Preferably, the present invention further includes a wire clamping device, wherein there are two wire clamping devices symmetrically distributed at both ends of the locking base.

[0014] Preferably, the fixing seat has a fixing surface on the side near the puncture part of the puncture needle shaft, and the fixing surface is a flat bottom with an internal convex ring.

[0015] Preferably, the trocar cannula assembly includes a trocar cannula and a balloon cannula, the balloon cannula is nested outside the trocar cannula, the balloon is located on the balloon cannula, and the locking and fixing assembly is locked to the outer wall of the balloon cannula.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This invention uses a self-restoring device to clamp the outside of the puncture device cannula assembly, achieving dynamic locking / releasing at any time. Compared with the traditional locking structure that requires opening and closing, the dynamic adjustment efficiency is higher. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a schematic diagram from another perspective of the present invention;

[0020] Figure 3 for Figure 2 AA section view;

[0021] Figure 4 This is an exploded view of the present invention;

[0022] Figure 5 This is a schematic diagram of the fixing base of this utility model;

[0023] Figure 6 This is a schematic diagram of the locking base of this utility model;

[0024] In the figure: 1. Puncture needle rod, 2. Puncture device cannula assembly, 3. Balloon, 4. Locking and fixing assembly, 5. Slide groove, 6. Handle, 7. Wire clamping device, 11. Puncture part, 21. Puncture device cannula, 22. Balloon cannula, 41. Torsion spring, 42. Locking base, 43. Fixing base, 421. Left locking base, 422. Right locking base, 423. Base, 431. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] This utility model relates to a balloon puncture device, such as... Figure 1-4 As shown, the device includes a puncture needle rod 1, a puncture device cannula assembly 2 sleeved outside the puncture needle rod 1, and a balloon 3. The balloon 3 is fixedly connected to the outer wall of the puncture device cannula assembly 2. The present invention also includes a locking and fixing assembly 4 connected to the outside of the puncture device cannula assembly 2. The locking and fixing assembly 4 is farther away from the puncture part 11 of the puncture needle rod 1 than the balloon 3. The locking and fixing assembly 4 has a reversible clamping force on the outer wall of the puncture device cannula assembly 2. The locking force disappears under the action of external force and automatically returns to the clamping force when the external force disappears.

[0027] Specifically, such as Figure 3 As shown, the locking and fixing assembly 4 includes a torsion spring 41. The inner diameter of the main body of the torsion spring 41 is smaller than the outer diameter of the puncture cannula assembly 2 and it is wrapped around the outer wall of the puncture cannula assembly 2 to achieve a clamping effect under normal conditions.

[0028] In use, this utility model allows the locking and fixing assembly 4 to move freely by pulling the end of the torsion spring 41 with external force to relax the clamping effect of the torsion spring 41 on the outer wall of the puncture cannula assembly 2. When the applied external force is removed, the torsion spring 41 automatically restores its deformation and clamps the outer wall of the puncture cannula assembly 2 again.

[0029] Preferably, the locking and fixing assembly 4 further includes a locking base 42 and a fixing base 43. The locking base 42 is fixedly connected to the fixing base 43. The end of the torsion spring 41 is embedded in the locking base 42 and clamped. The movement of the locking base 42 and the torsion spring 41 is integrated.

[0030] Preferred, such as Figure 1 , 3 As shown in Figures 6 and 7, the locking base 42 includes at least one horizontally penetrating groove 5 and at least one torsion spring 41 passing through the groove 5 to facilitate the application of external force to the torsion spring 41 on the locking base 42.

[0031] Preferred, such as Figure 1 , 3 As shown in Figure 4, this utility model is designed to include at least one handle 6. The end of the torsion spring 41 is fixedly connected to the part of the slide groove 5 to improve the comfort of operation. The handle 6 drives the end of the torsion spring 41 to slide in the slide groove 5 to release the clamping effect of the torsion spring 41 body on the outer wall of the puncture tube assembly 2.

[0032] Preferably, the locking base 42 includes a left locking base 421 and a right locking base 422 that are interlocked to facilitate disassembly and assembly.

[0033] Preferably, the locking base 42 includes a base 423 for connecting the fixing base 43, wherein the fixing base 43 is an elastic component and is nested in the base 423.

[0034] Preferably, it also includes a suture clamping device 7, which consists of two suture clamping devices 7 symmetrically distributed at both ends of the locking base 42 to facilitate suturing by the doctor.

[0035] Preferred, such as Figure 5 As shown, the fixing seat 43 has a fixing surface 431 on the side near the puncture part 11 of the puncture needle rod 1. The fixing surface 431 is a flat bottom with an internal convex ring, which is used to prevent blood from overflowing.

[0036] Specifically, as a typical design of a balloon puncture device, the puncture device cannula assembly 2 includes a puncture device cannula 21 and a balloon cannula 22. The balloon cannula 22 is nested outside the puncture device cannula 21, the balloon 3 is located on the balloon cannula 22, and the locking and fixing assembly 4 is locked to the outer wall of the balloon cannula 22.

[0037] The working principle of this utility model is as follows: the puncture device cannula 21 is installed on the puncture needle rod 1, and a balloon cannula 22 is fitted over it. Correspondingly, there is also a balloon assembly for inflating the balloon. The puncture device cannula 21 also has a sealing cap, which will not be described in detail in this patent. A torsion spring 41 is fixed externally to the balloon cannula 22, and a left locking base 421 and a right locking base 422 are fitted onto the torsion spring 41 to form a single unit. The main body of the torsion spring 41 is smaller than the diameter of the balloon cannula 22, so that under normal conditions, the torsion spring 41, along with the locking base 42, is tightly fixed to the outer wall of the balloon cannula 22. During use, the puncture head 11 is inserted into the patient's abdominal cavity. The balloon inflates and forms a tight seal against the abdominal wall. The surgeon uses handle 6 to rotate the torsion spring 41 in the groove 5, unlocking it and causing the locking base 42 to move the fixing seat 43. The process continues until the fixing surface 431 of the fixing seat 43 is firmly against the patient's abdominal wall. Then, the handle 6 is released, and the torsion spring 41 automatically resets and locks in place, completing the locking of the fixing seat 43. The protruding ring on the fixing surface 431 prevents blood leakage. After the surgery, the balloon is deflated, and the wound is sutured using the suture device 7. Instruments are then removed, concluding the procedure.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0039] Although this document frequently uses terms such as puncture needle rod 1, puncture device cannula assembly 2, balloon 3, locking and fixing assembly 4, slide groove 5, handle 6, wire clamping device 7, puncture part 11, puncture device cannula 21, balloon cannula 22, torsion spring 41, locking base 42, fixing base 43, left locking base 421, right locking base 422, base 423, and fixing surface 431, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A balloon trocar, comprising a puncture needle shaft (1), a trocar cannula assembly (2) sleeved outside the puncture needle shaft (1), and a balloon (3), wherein the balloon (3) is fixedly connected to the outer wall of the trocar cannula assembly (2), characterized in that: It also includes a locking and fixing component (4) connected to the outside of the trocar cannula assembly (2). The locking and fixing component (4) is farther away from the puncture part (11) of the puncture needle rod (1) than the balloon (3). The locking and fixing component (4) has a reversible clamping force on the outer wall of the trocar cannula assembly (2). The clamping force disappears under the action of external force and automatically recovers the clamping force when the external force disappears.

2. The balloon puncture device as described in claim 1, characterized in that: The locking and fixing assembly (4) includes a torsion spring (41), the inner diameter of which is smaller than the outer diameter of the puncture cannula assembly (2) and is wound around the outer wall of the puncture cannula assembly (2).

3. The balloon puncture device as described in claim 2, characterized in that: The locking and fixing assembly (4) further includes a locking base (42) and a fixing base (43), wherein the locking base (42) is fixedly connected to the fixing base (43), and the end of the torsion spring (41) is embedded in the locking base (42) and clamped.

4. The balloon puncture device as described in claim 3, characterized in that: The locking base (42) includes at least one horizontally through groove (5) and at least one torsion spring (41) passes through the groove (5).

5. The balloon puncture device as described in claim 3, characterized in that: It also includes at least one handle (6), which is fixedly connected to the end of the torsion spring (41) extending through the groove (5).

6. The balloon puncture device as described in claim 4, characterized in that: The locking base (42) includes a left locking base (421) and a right locking base (422) that are interlocked.

7. The balloon puncture device as described in claim 3, characterized in that: The locking base (42) includes a base (423), and the fixing seat (43) is an elastic component and is nested in the base (423).

8. The balloon puncture device as described in claim 3, characterized in that: It also includes a wire clamping device (7), which consists of two devices symmetrically distributed at both ends of the locking base (42).

9. The balloon puncture device as described in claim 7, characterized in that: The fixing seat (43) has a fixing surface (431) on the side near the puncture part (11) of the puncture needle rod (1). The fixing surface (431) is a flat bottom with an internal convex ring.

10. The balloon puncture device as described in claim 1, characterized in that: The trocar cannula assembly (2) includes a trocar cannula (21) and a balloon cannula (22), the balloon cannula (22) being nested outside the trocar cannula (21), the balloon (3) being located on the balloon cannula (22), and the locking and fixing assembly (4) being locked to the outer wall of the balloon cannula (22).

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